SC218 Engine Damage May Cause Stall or Fire – 2017-2018 Kia Optima Hybrid & Optima Plug-In Hybrid

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A printed copy is for reference only; publication information can be updated at any time. Always refer to KGIS for the latest information. After logging in kdealer.com, the newest technical publications are listed in ‘Service Releases’ and has the latest service information that has been released. GROUP MODEL Safety Recall Campaign 2017-2018MY Optima (JF P/HEV) w/Nu 2.0L GDI HEV NUMBER DATE SC218 (Rev 1, 01/24/2022) November 2021 SAFETY RECALL CAMPAIGN ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) This bulletin provides information to perform the Bearing Clearing Test (BCT) and, if necessary, replace the engine, and to update the Engine Control Unit (ECU) to install the Knock Sensor Detection System (KSDS) software on 2017-2018MY Optima (JF P/HEV) equipped with Nu 2.0L GDI ULEV/SULEV engine, produced from June 27, 2016 through April 27, 2018. Follow the flowchart on page 2 to perform the BCT and install the KSDS software. In some cases, engine long block replacement may be required if the BCT results in a “No Pass” or “Unable to Perform” (ex. seized engine). The KSDS detects vibrations indicating the onset of excessive connecting rod bearing wear. It is designed to alert the driver at an early stage of bearing wear before the occurrence of severe engine damage, including engine failure. If vibrations caused by bearing wear start to occur, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Limp Home Mode. This will reduce further damage to the engine and ensure that the vehicle occupants are not exposed to the risk of a more severe engine failure. At that time, Diagnostic Trouble Code (“DTC”) P1326, specific to the KSDS, will be recorded in the ECU. The vehicle can continue to be operated for a limited time in Limp Home Mode, but it will accelerate slowly and have a reduced maximum speed. Also, engine RPMs will be limited to approximately 1800-2000 RPM. Kia is requesting the completion of this bulletin on all affected vehicles. Before conducting the procedure, verify the vehicle is included in the list of affected VINs. Also, please have your KDS connected to the internet regularly to get the latest software updates available. SUBJECT: To assure complete customer satisfaction, always remember to refer to WebDCS Warranty Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty Coverage Inquiry) for a list of any additional campaigns that may need to be performed on the vehicle before returning it to the customer.  NOTICE This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area.  NOTICE ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 2 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: Flowchart: Follow the flowchart below and refer to SST067 for BCT procedure. Be sure to apply the ECU Update (KSDS Software) after BCT or engine replacement. Vehicle In Perform BCT Replace Engine PASS NO PASS ECU Update KSDS S/W Vehicle Out Engine Seized PWA Process Refer to Appendix 1 & 2 (Pages 15 & 19) Note: If any concerns arise during/after completing the flowchart, open a Techline case online. Due to recent updates to KDS, always follow the BCT procedure instructions outlined in KDS. You may also refer to SST067 for BCT Procedure/Calibration information.  IMPORTANT Page 3 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: ECU Upgrade Procedure: To correct this condition, the ECU should be reprogrammed using the KDS download, as described in this bulletin. Upgrade Event Name 571. JF HEV/PHEV NU 2.0GDI Knock Sensor Detection System (KSDS) ECU UPGRADE (17~18MY)”  •Confirm a Confirm a fully fully charged batterycharged battery (12.3 volts or higher is necessary) is used (12.3 volts or higher is necessary) is used oror utilize a fully utilize a fully charged jump starter box connected to the battery.charged jump starter box connected to the battery.  •Ensure the KDS is sufficiently charged at 60% or higher prior to reflash.Ensure the KDS is sufficiently charged at 60% or higher prior to reflash.  •All ECU upgrades must be performed with the All ECU upgrades must be performed with the ignition set to the ‘ON’ position unless otherwise ignition set to the ‘ON’ position unless otherwise stated.stated.  •Damaged VCI II units should Damaged VCI II units should notnot be used and promptly replaced.be used and promptly replaced.  •Be careful not to disconnect the VCIBe careful not to disconnect the VCI–II connected to the vehicle during the ECU upgrade II connected to the vehicle during the ECU upgrade procedure.procedure.  •DO NOT start the ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 4 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: ROM ID INFORMATION TABLE: Upgrade Event #571 Model EM TM IMMO ECU P/No. ROM ID Previous New JF HEV (17MY) Nu 2.0L GDI AT Yes 39161 2EJB0 JF7UPHMS673A JF7UPHMS690A JF7UPHMS6A0A JF7UPHMF6A2K JF HEV (18MY) 39161 2EJB1 JF8UPHMS6D0A JF8UPHMS6D1A JF7SPPMF6C2K JF PHEV (17MY) 39161 2EJH0 JF7SPPMS6A0A JF7SPPMS6C0A JF8UPHMF6D5K JF PHEV (18MY) 39161 2EJH1 JF8SPPMS6D0A JF8SPPMS6D1A JF8SPPMF6D5K To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle’s ECM ROM ID and reference the Information Table as necessary. Before attempting an ECU upgrade on any Kia model, make sure to first determine whether the Before attempting an ECU upgrade on any Kia model, make sure to first determine whether the applicable model is equipped with an immobilizer security system. Failure to follow proper applicable model is equipped with an immobilizer security system. Page 5 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: 1. Connect the VCI-II to the OBD-II connector, located under the driver’s side of the instrument panel. 2. With the ignition ON, turn ON the KDS tablet. Select ‘KDS’ from the home screen. 3. Confirm communication with VCI (A) and then configure the vehicle (B) using the ‘AUTO VIN’ (C) feature. 4. Select ‘ECU Upgrade’. Prior to performing the ECU upgrade, be sure to Prior to performing the ECU upgrade, be sure to check that the KDS is fully charged.check that the KDS is fully charged.   NOTICENOTICE The ECU upgrade function on KDS ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 6 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: 5. The KDS will check the server for recently uploaded Events and then automatically download Upgrade Event #571. 6. Select Auto Mode. 7. Select the ENGINE system under the System selection menu. Touch TSB (D) and confirm that the latest update is available for the applicable model. Select Upgrade Event #571 and select ‘Upgrade‘ to continue. 8. The ECU upgrade will begin and the progress of the upgrade will appear on the bar graph. Upgrade part (1/2) (E) will download the upgrade event to the VCI-II. Upgrade part (2/2) (F) will upgrade the ECU. KDS screenshot shown above is for demonstration purposes only. Events shown in screenshot are not applicable to this bulletin. The vehicle must be identified in The vehicle must be identified in Vehicle Selection to download an Vehicle Selection to download an Event for that Event for that vehicle.vehicle.   NOTICENOTICE Do NOT attempt to perform a Manual Do NOT attempt to perform a Manual Mode upgrade UNLESS Auto Mode Mode upgrade UNLESS Auto Mode fails. Always follow the instructions fails. Always follow the Page 7 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: 9. If a “Communication Fail” screen appears, verify that the VCI-II and KDS are communicating properly. Select ‘OK’ and restart the from step 4. 10. When instructed on the KDS, turn the ignition OFF for ten (10) seconds then back on. Select ‘OK’ to continue. 11. Once the upgrade is complete, select ‘OK’ to finalize the procedure. 12. When prompted, select ‘YES’ to check for Diagnostic Trouble Codes (DTC) and erase any DTCs stored such as EPS, ESC, and TPMS that may have been set during the upgrade. 13. Start the engine to confirm normal operation of the vehicle. If an error notice continues to appear If an error notice continues to appear or if the upgrade cannot be or if the upgrade cannot be performed, DO NOT disconnect the performed, DO NOT disconnect ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 8 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: Manual Upgrade Procedure: Manual Mode ECU Upgrade Passwords Menu Password JF HEV Nu 2.0GDI AT +IMMO/SMK ULEV (17MY): 39161-2EJB0 3916 JF PHEV Nu 2.0GDI AT +IMMO/SMK SULEV (17MY): 39161-2EJH0 1619 JF HEV Nu 2.0GDI AT +IMMO/SMK ULEV (18MY): 39161-2EJB1 6121 JF PHEV Nu 2.0GDI AT +IMMO/SMK SULEV (18MY): 39161-2EJH1 1216 1. Within the ECU Upgrade screen displayed, select Manual Mode. 2. Select the ENGINE system under the System selection menu. Select Upgrade Event #571 and select Upgrade to continue. 3. Select the appropriate control unit part number with reference to the ROM ID Information Table on page 3, and select OK. 4. Enter the appropriate password from the Manual Mode password table above and select OK. 5. The upgrade will begin and the progress of the upgrade will appear on the bar graph. 6. When instructed on the KDS, turn the ignition OFF for ten (10) seconds then back on. Select OK. 7. Once the upgrade is complete, select OK to finalize the procedure. 8. When prompted, select YES to check for Diagnostic Trouble Codes (DTC) and erase any DTCs stored such as EPS, ESC, and TPMS that may have been set during the upgrade. 9. Start the engine to confirm proper operation of the vehicle. The manual upgrade should ONLY be The manual upgrade should ONLY be performed if the automatic upgrade failsperformed if the automatic upgrade fails.. If the automatic upgrade fails, turn the ignition ‘OFF’ for about 10 seconds then place it back in If the automatic upgrade fails, turn the ignition ‘OFF’ Page 9 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: Engine Replacement Procedure: 1. Replace the engine assembly by referring to the “Engine Mechanical System → Engine And Transmission (Transaxle) Assembly → Sub & Long Engine Assembly → Repair procedures” chapter in the applicable Shop Manual on KGIS. Refer to TSB ENG190 for information regarding engine replacement practices. 2. After removal of the engine from the vehicle, remove all components that will need to be transferred by referring to the applicable Shop Manual on KGIS. 3. Install all removed components from the old engine block onto the new engine block utilizing all parts from Service Kit(s). 4. Reinstall the assembled engine and transmission/transaxle into the vehicle. Be sure to: • Fill crankcase with 5W-30 oil (refer to KGIS for oil fill level requirements) • Recommended Product: QUARTZ 9000 FUTURE FGC 5W-30 Full Synthetic SN PLUS, QUARTZ 9000 FUTURE XT 5W30 Full Synthetic SN PLUS, Mobil Super Synthetic 5W30 or above. If not available, use other brand 5W30 and Full Synthetic type with API SN/SN+/SP, ILSAC GF4/GF5 or higher service grade. • Fill and bleed the cooling system with 50/50 coolant or mixture appropriate for area. • Pressurize the fuel system before starting the vehicle. • Reset engine adaptive values and perform steering angle sensor calibration. 5. Confirm that the Rom ID is up-to-date. If not, reflash the ECU to the latest ROM ID available. 6. Verify proper operation of the vehicle with road test, and with the engine ON (running), erase any stored DTCs (e.g., EPS, ESC, and TPMS) that may have been set by this procedure. Verify no leaks exist and ensure engine oil and coolant are at their proper level. If any DTCs are still active, follow any related diagnosis and repair as needed. Note: 1.6L Gamma Engine images shown for reference only. Refer to Refer to TSB ENG083TSB ENG083 for gasoline direct injection (GDI) specific information, including for gasoline direct injection (GDI) specific information, including related warnings and cautions for handling high fuel pressure system components related warnings and cautions for handling high fuel pressure system ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 10 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: AFFECTED VEHICLE RANGE: Model Production Date Range Optima (JF HEV) June 27, 2016 to April 27, 2018 Optima (JF PHEV) REQUIRED TOOL: Tool Name Tool Part No. Figure Comments Torque Wrench Socket 09314 3Q100 Refer to TSB ENG083 for detailed usage instructions Injector Combustion Seal Ring Installer 09353 2B000 Click-Type or Electronic Torque Wrench N/A Locally Sourced Bearing Clearance Tester Kit KQ231 2T110QQK Auto-shipped to Dealers For troubleshooting assistance contact the GITA Support Line at: (888) 542-4371. For replacement parts, contact Snap-On Tools at: (888) 542-1011. Page 11 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: REQUIRED PARTS: Part Name MY Model Part Number Figure Nu 2.0L GDI Engine Long Block 17-18MY JF P/HEV 21101 2EG20FFF Service Kits (Nu 2.0L GDI): Service Kit* Includes ROD ASSY-OIL LEVEL 26611 2E022 1 EA GASKET-EXMANI 28521 2E000 1 EA GASKET-INMANI 28313 2E000 4 EA COMBUSTION SEAL(INJECTOR) 35312 2E613 4 EA BACK-UP RING(INJECTOR) 35312 2E611 4 EA O-RING (INJECTOR) 35312 2E610 4 EA CLIP-INJECTOR 35309 2E610 4 EA WASHER SEAL-INJECTOR 35313 2E610 4 EA O-RING (HIGH PRESSURE PUMP) 35322 2GTA0 1 EA BOLT (HIGH PRESSURE PUMP) 11405 06206K 2 EA GASKET (FRT MUFFLER) 28751 2B300 1 EA NUT (FRT MUFFLER) 13183 12000 2 EA KNOCK SENSOR 39250 2E000 1 EA BOLT-FLANGE 11403 08306K 1 EA GASKET-EGR PIPE, A1 28491 2E920 1 EA GASKET-EGR PIPE, B 28492 2E900 1 EA O-RING WTC ASSY 25623 2E000 1 EA GASKET-WATER PUMP, UPPER 25123 2E270 1 EA GASKET-WATER PUMP, LOWER 25124 2E270 1 EA BOLT-SEAL (8X26) 25125 2E270 5 EA BOLT-FLANGE 25456 2E000 2 EA BOLT-FLANGE 11403 06207S 4 EA Models Part Name Engine Part Number Figure JF P/HEV Service Kit* 2.0L GDI 21111-2EGA3FFF Fuel Tube 35305 2E600FFF Bolt 21891 3R000 2 EA Bolt 21991 3R000 1 EA Nut 51759 F6000 3 EA ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 12 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: WARRANTY INFORMATION: N Code: N99 C Code: C99 NOTE: Refer to Warranty Bulletin 2021-22 for details regarding coolant and substitute transportation reimbursement requirements. Model Claim Type Causal P/N Qty. Repair Description Labor Op Code OP Time Replacement P/N Qty. JF HEV/ PHEV R 23060 2E003 0 BCT (Pass) + S/W 211158R0 0.8 M/H N/A 0 BCT (No Pass) +Engine Replacement + S/W 211158R1 8.9 M/H 21101 2EG20FFF 35305 2E600FFF 21111 2EGA3FFF 1 Engine Seized/ Unable to Perform BCT +Engine Replacement + S/W 211158R2 8.4 M/H VIN inquiry data for this repair is provided for tracking purposes only. Kia retailers should reference VIN inquiry data for this repair is provided Page 13 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: Appendix 1 (Techline Prior Work Authorization) Video Instructions for Seized Engine Inspection: Prepare the vehicle prior to the video by removing the spark plugs and drive belt as well as setting the torque wrench to 94 lb.ft. 1. Start video showing vehicle and move in towards the dash VIN tag. 2. Show the removed spark plugs. 3. Show the empty spark plug holes from the engine. ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 14 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: 4. Show the removed drive belt and attached torque wrench to crank bolt. 5. Show the engine being cranked and torque specification exceeding 94 lb.ft. torque. 6. Submit video with Techline PWA case. Page 15 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: Appendix 2 (Video Capture & Upload) Note: Additional information required to open a Techline case including but not limited to screenshot of the stored DTC(s), ROM ID and Bearing Clearance Test (BCT) results. The Chrome™ browser should be used to access the Techline portal. Follow the steps below to clear the default browser if it is other than Chrome™. For KDS Tab 10.1 Tablets: 1. 2. 3. 4. Select “Settings” from the App Screen. Select the “General” tab at the top. Select “Default Applications”. If “Internet” is the default browser, select the CLEAR button. If “Chrome” is the default browser, further action is not required. 5. When opening the Techline portal, select “Chrome” and select Always”. ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 16 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: For KDS Tab S2 Tablets: 1. 2. 3. Select “Settings” from the App Screen. Select “Applications”. Select “Default Applications”. 4. Select “Browser app”. 5. Ensure “Chrome” is selected. Page 17 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: Attaching Video to a Techline Case: 1. Open K-Support in the device Chrome™ browser or select the “Techline” button on KDS home page. https://ksupport.kiausa.com 2. Open your existing Techline case for the vehicle requiring a video capture by selecting the case number. 3. Select “Attachment”. 4. Select “Add Files”. ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) Page 18 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 SUBJECT: 5. Select “Camcorder” and the video camera will open. 6. Start by recording the VIN. Ensure sun glare is not reflecting off windows or other objects. Without stopping the recording, capture the area of the vehicle displaying the issue. i.e.; • Engine Noise – record the engine. • Hole In Block – record the side of the engine with the damage. • Seized Engine – record a technician trying to turn the engine over with a torque wrench. 7. Stop the video when you captured what is needed. Select “OK” to use this capture or “RETRY” to capture the video again. 8. 9. Ensure a description of the recording. For example, engine knock or smoke from exhaust. Select “Submit Case”. NOTE: Ensure the video size is set to “Limit to email”. NOTE: Ensure the video size is set to “Limit to email”. Only record the VIN and the engine Only record the VIN and the engine exhibiting the concern. exhibiting the concern. Any additional information will increase the size of the video and Any additional information will increase the size of the video and make it difficult to upload or download. make it difficult to upload or download.   NOTICENOTICE Page 19 of 19 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218 (Rev 1) Optima (JF P/HEV) November 2021 ENGINE INSPECTION/REPLACEMENT AND KSDS S/W INSTALLATION (SC218) SUBJECT: 10. Select “Yes” when the confirmation message below appears. Note: Selecting anything other than “Yes” will not save the video capture.

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A printed copy is for reference only; publication information can be updated at any time. Always refer to KGIS for the latest information. After logging in kdealer.com, the newest technical publications are listed in ‘Service Releases’ and has the latest service information that has been released. GROUP MODEL Safety Recall Campaign 2017-2018MY Optima (JF P/HEV) w/Nu 2.0L GDI NUMBER DATE SC218A January 2022 SAFETY RECALL CAMPAIGN UPDATED KSDS SOFTWARE INSTALLATION (SC218A) This bulletin provides information to install the corrected and updated Knock Sensor Detection System (KSDS) software on certain 2017-2018MY Optima (JF P/HEV) equipped with Nu 2.0L GDI ULEV/SULEV engine, produced from June 27, 2016 through April 27, 2018, that already had the initial update performed under SC218. Since Kia launched SC218 in November 2021, Kia has become aware that the original KSDS software version installed on the affected vehicles before January 25, 2022 has an error and requires the installation of a corrected and updated KSDS software. These vehicles are identified under SC218A in the WEBDCS. The KSDS detects vibrations indicating the onset of excessive connecting rod bearing wear. It is designed to alert the driver at an early stage of bearing wear before the occurrence of severe engine damage, including engine failure. If vibrations caused by bearing wear start to occur, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Limp Home Mode. This will reduce further damage to the engine and ensure that the vehicle occupants are not exposed to the risk of a more severe engine failure. At that time, Diagnostic Trouble Code (“DTC”) P1326, specific to the KSDS, will be recorded in the ECU. The vehicle can continue to be operated for a limited time in Limp Home Mode, but it will accelerate slowly and have a reduced maximum speed. Also, engine RPMs will be limited to approximately 1800-2000 RPM. Kia is requesting the completion of this bulletin on all affected vehicles. Before conducting the procedure, verify the vehicle is included in the list of affected VINs. Also, please have your KDS connected to the internet regularly to get the latest software updates available. SUBJECT: To assure complete customer satisfaction, always remember to refer to WebDCS Warranty Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty Coverage Inquiry) for a list of any additional campaigns that may need to be performed on the vehicle before returning it to the customer.  NOTICE There is no charge to the vehicle owner for this repair. Under applicable law, you may not sell or otherwise deliver any affected vehicle until it has been repaired pursuant to the procedures set forth in this bulletin.  NOTICE UPDATED KSDS SOFTWARE INSTALLATION (SC218A) Page 2 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 SUBJECT: Flowchart: Vehicle In SC218 Performed? Perform SC218 Engine Inspection / Replacement and KSDS S/W Installation Perform SC218A KSDS ECU Update Vehicle Out NO YES Note: If any concerns arise during/after completing the flowchart, open a Techline case online. Page 3 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 UPDATED KSDS SUBJECT: SOFTWARE UPDATE (SC218A) ECU Upgrade Procedure: To correct this condition, the ECU should be reprogrammed using the KDS download, as described in this bulletin. Upgrade Event Name 599. JF HEV/PHEV NU 2.0GDI Knock Sensor Detection System (KSDS) ECU UPGRADE (17~18MY, 2ND)  •Confirm a Confirm a fully charged batteryfully charged battery (12.3 volts or higher is necessary) is used (12.3 volts or higher is necessary) is used oror utilize a fully utilize a fully charged jump starter box connected to the battery.charged jump starter box connected to the battery.  •Ensure the KDS is sufficiently charged at 60% or higher prior to reflash.Ensure the KDS is sufficiently charged at 60% or higher prior to reflash.  •All ECU upgrades must be performed with the ignition set to the ‘ON’ position unless otherwise All ECU upgrades must be performed with the ignition set to the ‘ON’ position unless otherwise stated.stated.  •Damaged VCI II units should Damaged VCI II units should notnot be used and promptly replaced.be used and promptly replaced.  •Be careful not to disconnect the VCIBe careful not to disconnect the VCI–II connected to the vehicle during the ECU upgrade II connected to the vehicle during the ECU upgrade procedure.procedure.  •DO NOT start the engine during ECU upgrade.DO NOT start the engine during ECU upgrade.  •DO NOT turn the ignition key ‘OFF’ DO NOT turn the ignition key ‘OFF’ oror interrupt thinterrupt the power supply during ECU upgrade.e power supply during ECU upgrade.  •When the ECU upgrade is completed, turn the ignition ‘OFF’ and wait 10 seconds before When the ECU upgrade is completed, turn the ignition ‘OFF’ and wait 10 seconds before starting the engine.starting the engine.  •ONLY use approved ECU upgrade software designated for the correct application.ONLY use approved ECU upgrade software designated for the correct application.   NOTICENOTICE It is recommended to ALWAYS check the Electronic Parts Catalog (EPC) to locate the ECU Part It is recommended to ALWAYS check the Electronic Parts Catalog (EPC) to locate the ECU Part Number respective to Auto/Manual Mode ROM IDs. DO NOT reference the parts label affixed to Number respective to Auto/Manual Mode ROM IDs. DO NOT reference the parts label affixed to the ECU.the ECU.   IMPORTANTIMPORTANT UPDATED KSDS SOFTWARE INSTALLATION (SC218A) Page 4 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 SUBJECT: ROM ID INFORMATION TABLE: Upgrade Event #599 Model Engine TM IMMO EM ECU P/No. ROM ID Previous New JF HEV (17MY) Nu 2.0L GDI AT Yes ULEV 39161 2EJB0 JF7UPHMF6A1K JF7UPHMF6A2K JF HEV (18MY) 39161 2EJB1 JF8UPHMF6D4K JF8UPHMF6D5K JF PHEV (17MY) SULEV 39161 2EJH0 JF7SPPMF6C1K JF7SPPMF6C2K JF PHEV (18MY) 39161 2EJH1 JF8SPPMF6D4K JF8SPPMF6D5K To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle’s ECM ROM ID and reference the Information Table as necessary. Before attempting an ECU Before attempting an ECU upgrade on any Kia model, make sure to first determine whether the upgrade on any Kia model, make sure to first determine whether the applicable model is equipped with an immobilizer security system. Failure to follow proper applicable model is equipped with an immobilizer security system. Failure to follow proper procedures may cause the PCM to become inoperative after the upgrade and any claims associate procedures may cause the PCM to become inoperative after the upgrade and any claims associated d with this repair may be subject to chargeback.with this repair may be subject to chargeback.   NOTICENOTICE Page 5 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 UPDATED KSDS SUBJECT: SOFTWARE UPDATE (SC218A) 1. Connect the VCI-II to the OBD-II connector, located under the driver’s side of the instrument panel. 2. With the ignition ON, turn ON the KDS tablet. Select ‘KDS’ from the home screen. 3. Confirm communication with VCI (A) and then configure the vehicle (B) using the ‘AUTO VIN’ (C) feature. 4. Select ‘ECU Upgrade’. Prior to performing the ECU upgrade, be sure to check that the KDS is Prior to performing the ECU upgrade, be sure to check that the KDS is fully charged.fully charged.   NOTICENOTICE The ECU upgrade function on KDS The ECU upgrade function on KDS operates wirelessly. It is not necessary operates wirelessly. It is not necessary to perform the upgrade via USB cable.to perform the upgrade via USB cable.   NOTICENOTICE A B C UPDATED KSDS SOFTWARE INSTALLATION (SC218A) Page 6 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 SUBJECT: 5. The KDS will check the server for recently uploaded Events and then automatically download Upgrade Event #599. 6. Select Auto Mode. 7. Select the ENGINE system under the System selection menu. Touch TSB (D) and confirm that the latest update is available for the applicable model. Select Upgrade Event #599 and select ‘Upgrade‘ to continue. 8. The ECU upgrade will begin and the progress of the upgrade will appear on the bar graph. Upgrade part (1/2) (E) will download the upgrade event to the VCI-II. Upgrade part (2/2) (F) will upgrade the ECU. KDS screenshot shown above is for demonstration purposes only. Events shown in screenshot are not applicable to this bulletin. The vehicle must be identified in The vehicle must be identified in Vehicle Selection to download an Vehicle Selection to download an Event for that vehicle.Event for that vehicle.   NOTICENOTICE Do NOT attempt to perform a Manual Do NOT attempt to perform a Manual Mode upgrade UNLESS Auto Mode Mode upgrade UNLESS Auto Mode fails. Always follow the fails. Always follow the instructions instructions given on the KDS in either Auto or given on the KDS in either Auto or Manual mode.Manual mode. CAUTIONCAUTION Do not touch the system buttons (like Do not touch the system buttons (like ‘Back’, ‘Home’, ‘etc.’) while ‘Back’, ‘Home’, ‘etc.’) while performing ECU Upgrade.performing ECU Upgrade. CAUTIONCAUTION D D E F Page 7 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 UPDATED KSDS SUBJECT: SOFTWARE UPDATE (SC218A) 9. If a “Communication Fail” screen appears, verify that the VCI-II and KDS are communicating properly. Select ‘OK’ and restart the from step 4. 10. When instructed on the KDS, turn the ignition OFF for ten (10) seconds then back on. Select ‘OK’ to continue. 11. Once the upgrade is complete, select ‘OK’ to finalize the procedure. 12. When prompted, select ‘YES’ to check for Diagnostic Trouble Codes (DTC) and erase any DTCs stored such as EPS, ESC, and TPMS that may have been set during the upgrade. 13. Start the engine to confirm normal operation of the vehicle. If an error notice continues to appear If an error notice continues to appear or if the upgrade cannot be or if the upgrade cannot be performed, DO NOT disconnect the performed, DO NOT disconnect the KDS/VCIKDS/VCI–II. Contact GIT America Help II. Contact GIT America Help Desk at (888) 542Desk at (888) 542–4371 or Techline.4371 or Techline.   NOTICENOTICE UPDATED KSDS SOFTWARE INSTALLATION (SC218A) Page 8 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 SUBJECT: Manual Upgrade Procedure: Manual Mode ECU Upgrade Passwords Menu Password JF HEV Nu 2.0GDI AT +IMMO/SMK ULEV (17MY): 39161-2EJB0 6121 JF PHEV Nu 2.0GDI AT +IMMO/SMK SULEV (17MY): 39161-2EJH0 6122 JF HEV Nu 2.0GDI AT +IMMO/SMK ULEV (18MY): 39161-2EJB1 6123 JF PHEV Nu 2.0GDI AT +IMMO/SMK SULEV (18MY): 39161-2EJH1 6124 1. Within the ECU Upgrade screen displayed, select Manual Mode. 2. Select the ENGINE system under the System selection menu. Select Upgrade Event #599 and select Upgrade to continue. 3. Select the appropriate control unit part number with reference to the ROM ID Information Table on page 3, and select OK. 4. Enter the appropriate password from the Manual Mode password table above and select OK. 5. The upgrade will begin and the progress of the upgrade will appear on the bar graph. 6. When instructed on the KDS, turn the ignition OFF for ten (10) seconds then back on. Select OK. 7. Once the upgrade is complete, select OK to finalize the procedure. 8. When prompted, select YES to check for Diagnostic Trouble Codes (DTC) and erase any DTCs stored such as EPS, ESC, and TPMS that may have been set during the upgrade. 9. Start the engine to confirm proper operation of the vehicle. The manual upgrade should ONLY be The manual upgrade should ONLY be performed if the automatic upgrade fails performed if the automatic upgrade fails.. If the automatic upgrade fails, turn the ignition ‘OFF’ for about 10 seconds then place it back in If the automatic upgrade fails, turn the ignition ‘OFF’ for about 10 seconds then place it back in the ‘ON’ position to reset the control unit BEFORE performing manual upgrade.the ‘ON’ position to reset the control unit BEFORE performing manual upgrade. See table below for ‘Manual Mode’ pas See table below for ‘Manual Mode’ passwords.swords.   NOTICENOTICE Page 9 of 9 Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information. TSB: SC218A Optima (JF P/HEV) January 2022 UPDATED KSDS SUBJECT: SOFTWARE UPDATE (SC218A) AFFECTED VEHICLE RANGE: Model Production Date Range Optima (JF HEV) June 27, 2016 to April 27, 2018 Optima (JF PHEV) REQUIRED TOOL: Tool Name Figure Comments KDS Kia Diagnostic System WARRANTY INFORMATION: N Code: N99 C Code: C99 Model Claim Type Causal P/N Qty. Repair Description Labor Op Code OP Time Replacement P/N Qty. JF HEV/ PHEV R 39161 2EJB0 0 (SC218A) 2nd ECU Upgrade 221006R0 0.3 M/H N/A 0 VIN inquiry data for this repair is provided for tracking purposes only. Kia retailers should reference VIN inquiry data for this repair is provided for tracking purposes only. Kia retailers should reference SCSC218A218A when accessing the WebDCS system.when accessing the WebDCS system.   NOTICENOTICE

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Kia America, Inc. Corporate Headquarters 111 Peters Canyon Road, Irvine, CA 92606-1790 USA IMPORTANT SAFETY RECALL (NHTSA Recall Number: 21V844) This notice applies to your vehicle: (Insert VIN) November 29, 2021 Dear Kia Optima Hybrid (“HEV”) and Plug-In Hybrid (“PHEV”) Owner: Kia has identified a defect in your vehicle which relates to motor vehicle safety. This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Kia America, Inc. has decided that a defect which relates to motor vehicle safety exists in 2017-2018 MY Kia Optima HEV and 2017-2018 MY Kia Optima PHEV vehicles. Engine damage can increase the risk of an engine stall and/or a fire. A vehicle stall increases the risk of a crash, and a fire increases the risk of injury. Our records indicate that you own or lease one of the potentially affected vehicles. What Is the Problem? The connecting rod bearing can become damaged for different reasons. If the connecting rod bearing becomes damaged, abnormal knocking noise from the engine and/or illumination of the oil pressure warning light can occur. If the vehicle continues to be driven in this condition, severe engine damage can occur, thereby increasing the risk of an engine stall and/or a fire due to a connecting rod puncturing the engine block allowing engine oil to leak onto a hot exhaust. Kia is conducting this recall to mitigate any unreasonable risk due to engine damage. Kia Will Test And, If Necessary, Replace The Engine, And Will Install The KSDS Software At No Cost To You. In an effort to mitigate the potential fire risk, Kia will perform an engine test to determine the existence of any connecting rod bearing damage and, if necessary, replace the engine at no cost to you. The estimated time required for the engine test is approximately 1 to 2 hours. However, your vehicle may be needed longer depending on the result of the test. If an engine replacement is necessary, the estimated time required is eight (8) hours or more. We recommend scheduling a service appointment to minimize your inconvenience. In addition, Kia will install a Knock Sensor Detection System (KSDS) software that will prevent engine damage from potential excessive connecting rod bearing damage at no cost to you. The estimated time required to install the software will be approximately one (1) hour. Upon completion of the KSDS software installation, Kia will extend the warranty coverage to 15 years/150,000 miles, whichever occurs first, for engine long block assembly repairs needed due to connecting rod bearing damage, provided the vehicle has had regular oil change in accordance with the maintenance requirements set forth in the vehicle’s Owner’s Manual. What Will The KSDS Software Do? If excessive bearing wear is detected after the KSDS software has been installed, the following will occur: 1. The Malfunction Indicator Lamp (“MIL”) will blink continuously, and the vehicle will be placed in a reduced power and acceleration mode [referred to as “Limp Home Mode”]. Malfunction Indicator Lamp (“MIL”) 2. Your vehicle can continue to be operated for a limited time in Limp Home Mode to permit you to drive the vehicle to a safe location, but it will accelerate slowly and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. This means the maximum vehicle speed will be limited to approximately 65mph or less depending on vehicle loading and road conditions. What Should You Do? • In the interest of the safety of your passengers, as well as your own safety, please immediately contact your Kia dealer to arrange for the recall repair to be conducted. SC218 • Continue to follow the maintenance schedule outlined in the Maintenance Section of your vehicle’s Owner’s Manual. Changing the oil and filter pursuant to your vehicle’s oil maintenance schedule is ESSENTIAL to the proper functioning of your engine. Failing to do so can result in engine damage and/or failure. In the worst case, an engine compartment fire may occur. • To find your nearest dealer, visit www.kia.com and click the “Find Dealer” button in the upper right corner (“Dealers” on a mobile device). You can also use the QR code below with your mobile device to access this information (see the bottom of this letter for more information about QR code use): What If You Have Already Paid To Have This Situation Corrected? If you have incurred expense to remedy this issue prior to the date of this notice, you may have the opportunity to obtain reimbursement for that expense. You may submit your receipts online to Kia via the Owners section of www.kia.com or mail your receipts with a copy of the attached Request for Reimbursement form directly to Kia for review and consideration: Consumer Assistance Center Kia America, Inc. P.O. Box 52410 Irvine, CA 92619-2410 1-800-333-4542 Pursuant to the General Reimbursement Plan issued by Kia pursuant to Federal Regulation 49 CFR 573.13, Kia will use its best efforts to respond to your claim within sixty (60) days of receipt and at that time Kia may either accept or reject that claim or it may request more information to evaluate the claim. Have You Changed Your Address Or Sold Your Kia? If you have changed your home address, sold your Kia vehicle, or no longer own your vehicle, please complete the attached prepaid “Change of Address/Ownership” card and mail it to us. You can also contact the Consumer Assistance Center phone number listed above. What If You Are A Vehicle Lessor? What If You Have Other Questions? If your dealer does not respond to your service request in a timely manner, we suggest that you call Kia’s Consumer Assistance Center at 1-800-333-4542. This number has TTY capability. If you still are not satisfied that we have remedied this situation without charge and within a reasonable amount of time, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590; or call the toll free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. This action has been taken in the interest of your safety, and we regret any inconvenience this situation may cause you. Sincerely, Consumer Affairs Department Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. QR Code Use: • A QR Code is a square, 2-dimensional barcode that can be read by mobile devices loaded with an appropriate barcode or QR Code Reader App. The app reads the barcode image and then launches/uploads the specific information the code contains, such as URLs, text, photos, videos. • With a mobile device, download a QR Code Reader App. With many devices, you can do this through an app store or marketplace. • Open the QR Code Reader App on your mobile device. The app will utilize your device’s camera. Center the code in the camera viewing area. With some apps, the URL or other information will automatically load when the code is recognized. For others, you may have to snap or take a picture of the QR code. Refer to the QR Reader Code App instructions. REQUEST FOR REIMBURSEMENT FORM SC218 – 2017-2018 MY OPTIMA HYBRID AND PLUG-IN HYBRID ENGINE HIB FIRE SAFETY RECALL CAMPAIGN If you have incurred expense to remedy this issue prior to the date of this notice, you may have the opportunity to obtain reimbursement for that expense. You may submit your receipts online to Kia via the Owners section of www.kia.com (MyKia>Contact Us or directly at this link: https://ksupport.kiausa.com/ConsumerAffairs). If you do not have access to a computer or prefer to submit your request by mail, please complete this Request for Reimbursement and mail it to the following address for review and consideration, along with backup documentation: Consumer Assistance Center Kia America, Inc. P. O. Box 52410 Irvine, CA 92619-2410 1-800-333-4542 Please allow at least sixty (60) days for review and response. Customer First Name: Customer Last Name: Attach the following: o Repair Order showing: o Name & address of person paying for the repair o Vehicle Identification Number (VIN) of vehicle repaired o Description of the problem repaired  Date of repair, mileage at the time of repair and total cost of claimed repair expense o Evidence of Payment of Repair showing: o Date of Payment o Amount Paid (e.g., copies of cancelled check or credit card receipt) I certify that the documents attached to this Request for Reimbursement are true and accurate and should be used as the basis for a reimbursement to me under this campaign. CLAIMANT’S SIGNATURE: Signature Print Name Customer Address: Customer City: State: Zip: Phone #: ( ) – Email: Vehicle Identification Number: Mileage at Time of Repair: Date of Repair: / / Amount of Reimbursement Requested $

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Kia America, Inc. Corporate Headquarters 111 Peters Canyon Road, Irvine, CA 92606-1790 USA IMPORTANT SAFETY RECALL (NHTSA Recall Number: 21V844) This notice applies to your vehicle: (Insert VIN) IMPORTANT UPDATE A NEW SOFTWARE UPDATE IS REQUIRED FOR YOUR VEHICLE January 27, 2022 Dear Kia Optima Hybrid (“HEV”) and Plug-In Hybrid (“PHEV”) Vehicle Owner: Kia has identified a defect in your vehicle which relates to motor vehicle safety. This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. As we previously notified you, Kia America, Inc. has decided that a defect which relates to motor vehicle safety exists in 2017-2018 MY Kia Optima HEV and 2017-2018 MY Kia Optima PHEV vehicles. Engine damage can increase the risk of an engine stall and/or a fire. A vehicle stall increases the risk of a crash, and a fire increases the risk of injury. This recall included a Knock Sensor Detection System (KSDS) software that will prevent engine damage from potential excessive connecting rod bearing damage at no cost to you. Our records show that the KSDS software was recently installed in your vehicle, and we want to thank you for your quick action. SINCE THE INSTALLATION OF THE KSDS SOFTWARE, KIA HAS BECOME AWARE THAT THE KSDS SOFTWARE VERSION INSTALLED IN YOUR VEHICLE HAS AN ERROR AND REQUIRES THE INSTALLATION OF A NEW CORRECTED SOFTWARE. In order to correct this error, Kia is asking you to return to your authorized Kia dealership to have this software update with the corrected version installed as quickly as possible. What Is The Problem With The KSDS Software Currently Installed In Your Vehicle? As identified in the previous notice to you, the connecting rod bearing can become damaged for different reasons. If the connecting rod bearing becomes damaged, abnormal knocking noise from the engine and/or illumination of the oil pressure warning light can occur. If the vehicle continues to be driven in this condition, severe engine damage can occur, thereby increasing the risk of an engine stall and/or a fire due to a connecting rod puncturing the engine block allowing engine oil to leak onto a hot exhaust. Kia is conducting this recall to mitigate any unreasonable risk due to engine damage. Kia designed its KSDS software to: 1. Detect vibrations indicating the onset of excessive connecting rod bearing wear in the engine, and 2. Warn the driver, and 3. Initiate a limp home mode to both protect the engine while allowing limited operation of the vehicle at speeds up to 65 mph. However, because of a software error, the KSDS software installed in your vehicle will not correctly detect the vibrations indicating the onset of excessive connecting rod bearing wear in the engine, thus preventing driver warning and the initiation of limp home mode. SC218A Kia Will Install The UPDATED AND CORRECTED KSDS Software At No Cost To You. Kia will install the corrected KSDS software that will prevent engine damage from potential excessive connecting rod bearing damage at no cost to you. The estimated time required to install the updated software will be approximately one (1) hour. Upon completion of the updated and corrected KSDS software installation, Kia will extend the warranty coverage to 15 years/150,000 miles, whichever occurs first, starting from the date the vehicle was first put into service, for engine long block assembly repairs needed due to connecting rod bearing damage, provided the vehicle has had regular oil changes in accordance with the maintenance requirements set forth in the vehicle’s Owner’s Manual. Also, if the installation of the updated KSDS software is completed by APRIL 15, 2022, Kia will provide you with a complimentary Lube, Oil and Filter (LOF) change which can be utilized at your next regularly-scheduled maintenance interval at your local Kia dealership (no time limit to use) for the inconvenience associated with having to return to the dealership for this additional service. What Will Happen Once The Corrected KSDS Software Has Been Installed? If excessive bearing wear is detected after the corrected KSDS software has been installed, the following will occur: 1. The Malfunction Indicator Lamp (“MIL”) will blink continuously, and the vehicle will be placed in a reduced power and acceleration mode [referred to as “Limp Home Mode”]. Malfunction Indicator Lamp (“MIL”) 2. Your vehicle can continue to be operated for a limited time in Limp Home Mode to permit you to drive the vehicle to a safe location, but it will accelerate slowly and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. This means the maximum vehicle speed will be limited to approximately 65mph or less depending on vehicle loading and road conditions. What Should You Do? • In the interest of the safety of your passengers, as well as your own safety, please immediately contact your Kia dealer to have the updated KSDS software installed on your vehicle. • Continue to follow the maintenance schedule outlined in the Maintenance Section of your vehicle’s Owner’s Manual. Changing the oil and filter pursuant to your vehicle’s oil maintenance schedule is ESSENTIAL to the proper functioning of your engine. Failing to do so can result in engine damage and/or failure. In the worst case, an engine compartment fire may occur. • To find your nearest dealer, visit www.kia.com and click the “Find Dealer” button in the upper right corner (“Dealers” on a mobile device). You can also use the QR code below with your mobile device to access this information (see the bottom of this letter for more information about QR code use): What If You Have Already Paid To Have This Situation Corrected? If you have incurred expense to remedy this issue prior to the date of this notice, you may have the opportunity to obtain reimbursement for that expense. You may submit your receipts online to Kia via the Owners section of www.kia.com or mail your receipts with a copy of the attached Request for Reimbursement form directly to Kia for review and consideration: SC218A Consumer Assistance Center Kia America, Inc. P.O. Box 52410 Irvine, CA 92619-2410 1-800-333-4542 Pursuant to the General Reimbursement Plan issued by Kia pursuant to Federal Regulation 49 CFR 573.13, Kia will use its best efforts to respond to your claim within sixty (60) days of receipt and at that time Kia may either accept or reject that claim or it may request more information to evaluate the claim. Have You Changed Your Address Or Sold Your Kia? If you have changed your home address, sold your Kia vehicle, or no longer own your vehicle, please complete the attached prepaid “Change of Address/Ownership” card and mail it to us. You can also contact the Consumer Assistance Center phone number listed above. What If You Are A Vehicle Lessor? What If You Have Other Questions? If your dealer does not respond to your service request in a timely manner, we suggest that you call Kia’s Consumer Assistance Center at 1-800-333-4542. This number has TTY capability. If you still are not satisfied that we have remedied this situation without charge and within a reasonable amount of time, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590; or call the toll free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. This action has been taken in the interest of your safety, and we regret any inconvenience this situation may cause you. Sincerely, Consumer Affairs Department Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. QR Code Use: • A QR Code is a square, 2-dimensional barcode that can be read by mobile devices loaded with an appropriate barcode or QR Code Reader App. The app reads the barcode image and then launches/uploads the specific information the code contains, such as URLs, text, photos, videos. • With a mobile device, download a QR Code Reader App. With many devices, you can do this through an app store or marketplace. • Open the QR Code Reader App on your mobile device. The app will utilize your device’s camera. Center the code in the camera viewing area. With some apps, the URL or other information will automatically load when the code is recognized. For others, you may have to snap or take a picture of the QR code. Refer to the QR Reader Code App instructions. REQUEST FOR REIMBURSEMENT FORM SC218 – 2017-2018 MY OPTIMA HYBRID AND PLUG-IN HYBRID ENGINE HIB FIRE SAFETY RECALL CAMPAIGN If you have incurred expense to remedy this issue prior to the date of this notice, you may have the opportunity to obtain reimbursement for that expense. You may submit your receipts online to Kia via the Owners section of www.kia.com (MyKia>Contact Us or directly at this link: https://ksupport.kiausa.com/ConsumerAffairs). If you do not have access to a computer or prefer to submit your request by mail, please complete this Request for Reimbursement and mail it to the following address for review and consideration, along with backup documentation: Consumer Assistance Center Kia America, Inc. P. O. Box 52410 Irvine, CA 92619-2410 1-800-333-4542 Please allow at least sixty (60) days for review and response. Customer First Name: Customer Last Name: Attach the following: o Repair Order showing: o Name & address of person paying for the repair o Vehicle Identification Number (VIN) of vehicle repaired o Description of the problem repaired  Date of repair, mileage at the time of repair and total cost of claimed repair expense o Evidence of Payment of Repair showing: o Date of Payment o Amount Paid (e.g., copies of cancelled check or credit card receipt) I certify that the documents attached to this Request for Reimbursement are true and accurate and should be used as the basis for a reimbursement to me under this campaign. CLAIMANT’S SIGNATURE: Signature Print Name Customer Address: Customer City: State: Zip: Phone #: ( ) – Email: Vehicle Identification Number: Mileage at Time of Repair: Date of Repair: / / Amount of Reimbursement Requested $

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SC218 November 22, 2021 ATTENTION: ALL DEALER PARTS & SERVICE MANAGERS Kia America, Inc., pursuant to the National Traffic and Motor Vehicle Safety Act, is conducting a Safety Recall Campaign on 2017-2018 MY Kia Optima Hybrid (“HEV”) vehicles manufactured from June 27, 2016 through November 21, 2017 and 2017-2018 MY Kia Plug-In Hybrid (“PHEV”) vehicles manufactured from August 25, 2016 through April 27, 2018. The connecting rod bearing can become damaged for different reasons. If the connecting rod bearing becomes damaged, abnormal knocking noise from the engine and/or illumination of the oil pressure warning light can occur. If the vehicle continues to be driven in this condition, severe engine damage can occur, thereby increasing the risk of an engine stall and/or in the worst case, a fire due to a connecting rod puncturing the engine block allowing engine oil to leak onto a hot exhaust. A cause resulting from a manufacturing or design defect has not been identified. However, Kia is conducting this recall as a preventative measure to mitigate any unreasonable risk due to engine damage. In an effort to mitigate the potential fire risk, Kia dealers will perform an engine test to determine the existence of any connecting rod bearing damage, and if necessary, replace the engine. In addition, Kia dealers will install a Knock Sensor Detection System (KSDS) software that will prevent engine damage from potential excessive connecting rod bearing damage. The Technical Service Bulletin that provides vehicle inspection and repair procedures, affected VIN production range, and warranty claim information will be posted on the Kia Global Information System (KGIS) at www.kiatechinfo.com in the week of November 22, 2021. Enclosed you will find a copy of the owner notification letter and a Q&A Guide for recall questions, both of which describe the issue. A list of vehicles affected by this recall can be accessed on WEBDCS. Log onto the site, select the Campaigns Tab, click on Open Campaign Report in the left side menu, and select SC218 to generate the list. Kia will start notifying vehicle owners on November 29, 2021. Please start performing the repairs immediately on any affected vehicles currently in your inventory. Note that any vehicle owners who have already paid for engine repairs related to rod bearing failure can submit a request for reimbursement online via the Owner’s Section of www.kia.com. Also, please make certain the appropriate personnel in your dealership are familiar with the details of this recall to ensure proper responses to customer inquiries and requests to have the recall performed on their vehicles. This Safety Recall represents an opportunity for your service department to deliver an exceptional service experience (e.g., flexible service appointment process, car wash and vacuum and timely service). NHTSA ADVISORY: It is a violation of Federal law for a dealer to deliver a new motor vehicle covered by this notification under a sale or lease until the defect is remedied. LEGAL PRIVACY LIABILITY NOTICE: Pursuant to the terms of the Dealer Sales and Service Agreement and the Gramm-Leach-Bliley federal consumer privacy act, you are required to keep confidential any and all information and documents provided to you by Kia America, Inc. or generated by you in the conduct of carrying out work under that Agreement regarding Kia vehicle purchasers and owners, including but not limited to warranty claim information. Kia dealers may use such owner information for the sole purpose of conducting and performing this safety recall campaign, and for no other purpose. If you have any questions, please contact your Kia District Parts and Service Manager. Sincerely, Kia Service Department

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SC218A January 25, 2022 ATTENTION: ALL DEALER PARTS & SERVICE MANAGERS As announced in November 2021, Kia America, Inc., pursuant to the National Traffic and Motor Vehicle Safety Act, conducted a Safety Recall Campaign on 2017-2018 MY Kia Optima Hybrid (“HEV”) vehicles manufactured from June 27, 2016 through November 21, 2017 and 2017-2018 MY Kia Plug-In Hybrid (“PHEV”) vehicles manufactured from August 25, 2016 through April 27, 2018. Since the launch of this Safety Recall Campaign, Kia has become aware that the Knock Sensor Detection System (KSDS) software version installed has an error and requires the installation of a new corrected software. Kia has identified all affected vehicles which require the installation of the new corrected software. These vehicles are identified under a separate campaign number SC218A. The customers of these vehicles will be notified by mail to return to the dealership to have the software update with the corrected version installed as quickly as possible. The Technical Service Bulletin that provides vehicle software update procedures, affected VIN production range, and warranty claim information will be posted on the Kia Global Information System (KGIS) at www.kiatechinfo.com in the week of January 25, 2022. Enclosed you will find a copy of the owner update letter and a Q&A Guide for recall questions, both of which describe the issue. A list of vehicles affected by this recall can be accessed on WEBDCS. Log onto the site, select the Campaigns Tab, click on Open Campaign Report in the left side menu, and select SC218A to generate the list. Kia will start notifying vehicle owners on January 27, 2022. Please start performing the software update immediately on any affected vehicles currently in your inventory. Note that any vehicle owners who have already paid for engine repairs related to rod bearing failure can submit a request for reimbursement online via the Owner’s Section of www.kia.com. In addition, Kia will be offering a complimentary Lube, Oil and Filter (LOF) change which can be utilized at their next regularly scheduled maintenance interval if the installation of the KSDS software is completed by APRIL 15, 2022. Also, please make certain the appropriate personnel in your dealership are familiar with the details of this important recall update to ensure proper responses to customer inquiries and requests to have the recall performed on their vehicles. This Safety Recall and software update represent an opportunity for your service department to deliver an exceptional service experience (e.g., flexible service appointment process, car wash and vacuum and timely service). NHTSA ADVISORY: It is a violation of Federal law for a dealer to deliver a new motor vehicle covered by this notification under a sale or lease until the defect is remedied. LEGAL PRIVACY LIABILITY NOTICE: Pursuant to the terms of the Dealer Sales and Service Agreement and the Gramm-Leach-Bliley federal consumer privacy act, you are required to keep confidential any and all information and documents provided to you by Kia America, Inc. or generated by you in the conduct of carrying out work under that Agreement regarding Kia vehicle purchasers and owners, including but not limited to warranty claim information. Kia dealers may use such owner information for the sole purpose of conducting and performing this safety recall campaign, and for no other purpose. If you have any questions, please contact your Kia District Parts and Service Manager. Sincerely, Kia Service Department IMPORTANT UPDATE

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SC218A January 25, 2022 ATTENTION: ALL DEALER PRINCIPALS As announced in November 2021, Kia America, Inc., pursuant to the National Traffic and Motor Vehicle Safety Act, conducted a Safety Recall Campaign on 2017-2018 MY Kia Optima Hybrid (“HEV”) vehicles manufactured from June 27, 2016 through November 21, 2017 and 2017-2018 MY Kia Plug-In Hybrid (“PHEV”) vehicles manufactured from August 25, 2016 through April 27, 2018. Since the launch of this Safety Recall Campaign, Kia has become aware that the Knock Sensor Detection System (KSDS) software version installed has an error and requires the installation of a new corrected software. Kia has identified all affected vehicles which require the installation of the new corrected software. These vehicles are identified under a separate campaign number SC218A. The customers of these vehicles will be notified by mail to return to the dealership to have the software update with the corrected version installed as quickly as possible. Your Service Manager was sent a copy of the owner update letter and a Q&A guide for recall questions both of which describe the issue and information on how to access the list of affected vehicles. Kia will start notifying the vehicle owners of this important update on January 27, 2022. In addition, Kia will be offering a complimentary Lube, Oil and Filter (LOF) change which can be utilized at their next regularly scheduled maintenance interval if the installation of the KSDS software is completed by APRIL 15, 2022. What Should You Do? Please make certain the appropriate personnel in your dealership are familiar with the details of this recall campaign and software update to ensure proper responses to customer inquiries and requests to have the campaign performed on their vehicles. NHTSA ADVISORY: It is a violation of Federal law for a dealer to deliver a new motor vehicle covered by this notification under a sale or lease until the defect is remedied. LEGAL PRIVACY LIABILITY NOTICE: Pursuant to the terms of the Dealer Sales and Service Agreement and the Gramm-Leach-Bliley federal consumer privacy act, you are required to keep confidential any and all information and documents provided to you by Kia America, Inc. or generated by you in the conduct of carrying out work under that Agreement regarding Kia vehicle purchasers and owners, including but not limited to warranty claim information. Kia dealers may use such owner information for the sole purpose of conducting and performing this safety recall campaign, and for no other purpose. If you have any questions, please contact your Kia District Parts & Service Manager. Sincerely, Kia Service Department Enclosures IMPORTANT UPDATE

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SC218 November 22, 2021 ATTENTION: ALL DEALER PRINCIPALS Kia America, Inc., pursuant to the National Traffic and Motor Vehicle Safety Act, is conducting a Safety Recall Campaign on 2017-2018 MY Kia Optima Hybrid (“HEV”) vehicles manufactured from June 27, 2016 through November 21, 2017 and 2017-2018 MY Kia Plug-In Hybrid (“PHEV”) vehicles manufactured from August 25, 2016 through April 27, 2018. The connecting rod bearing can become damaged for different reasons. If the connecting rod bearing becomes damaged, abnormal knocking noise from the engine and/or illumination of the oil pressure warning light can occur. If the vehicle continues to be driven in this condition, severe engine damage can occur, thereby increasing the risk of an engine stall and/or in the worst case, a fire due to a connecting rod puncturing the engine block allowing engine oil to leak onto a hot exhaust. A cause resulting from a manufacturing or design defect has not been identified. However, Kia is conducting this recall as a preventative measure to mitigate any unreasonable risk due to engine damage. In an effort to mitigate the potential fire risk, Kia dealers will perform an engine test to determine the existence of any connecting rod bearing damage, and if necessary, replace the engine. In addition, Kia dealers will install a Knock Sensor Detection System (KSDS) software that will prevent engine damage from potential excessive connecting rod bearing damage. Your Service Manager was sent a copy of the owner notification letter and a Q&A guide for recall questions both of which describe the issue and information on how to access the list of affected vehicles. Kia will start notifying the vehicle owners on November 29, 2021. What Should You Do? Please make certain the appropriate personnel in your dealership are familiar with the details of this recall campaign to ensure proper responses to customer inquiries and requests to have the campaign performed on their vehicles. NHTSA ADVISORY: It is a violation of Federal law for a dealer to deliver a new motor vehicle covered by this notification under a sale or lease until the defect is remedied. LEGAL PRIVACY LIABILITY NOTICE: Pursuant to the terms of the Dealer Sales and Service Agreement and the Gramm-Leach-Bliley federal consumer privacy act, you are required to keep confidential any and all information and documents provided to you by Kia America, Inc. or generated by you in the conduct of carrying out work under that Agreement regarding Kia vehicle purchasers and owners, including but not limited to warranty claim information. Kia dealers may use such owner information for the sole purpose of conducting and performing this safety recall campaign, and for no other purpose. If you have any questions, please contact your Kia District Parts & Service Manager. Sincerely, Kia Service Department Enclosures

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-844 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Kia Motors America Submission Date : OCT 29, 2021 NHTSA Recall No. : 21V-844 Manufacturer Recall No. : SC218 Manufacturer Information : Manufacturer Name : Kia Motors America Address : 111 Peters Canyon Road Irvine CA 92606 Company phone : 800-333-4542 Population : Number of potentially involved : 10,731 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2017-2018 Kia Optima Hybrid (HEV) Vehicle Type : LIGHT VEHICLES Body Style : ALL Power Train : HYBRID ELECTRIC Descriptive Information : All 2017-2018 model year Optima Hybrid (HEV) vehicles manufactured from 6/27/2016 through 11/21/2017 (8,311 vehicles). The recall population was determined by a review of vehicle production records. The vehicles subject to this recall were not produced in VIN order. Customers seeking information about their specific vehicle will be referred to Kia’s Consumer Assistance Center or their Kia dealer. Production Dates : JUN 27, 2016 – NOV 21, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2017-2018 Kia Optima Plug-in Hybrid (PHEV) Vehicle Type : LIGHT VEHICLES Body Style : ALL Power Train : HYBRID ELECTRIC Descriptive Information : All 2017-2018 Optima Plug-in Hybrid (PHEV) vehicles manufactured from 8/25/2016 through 4/27/2018 (2,420 vehicles). The recall population was determined by a review of vehicle production records. The vehicles subject to this recall were not produced in VIN order. Customers seeking information about their specific vehicle will be referred to Kia’s Consumer Assistance Center or their Kia dealer. Production Dates : AUG 25, 2016 – APR 27, 2018 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 21V-844 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : The connecting rod bearing can become damaged for different reasons. If the connecting rod bearing becomes damaged, abnormal knocking noise from the engine can occur and/or illumination of the oil pressure warning light. If the vehicle continues to be driven in this condition, engine damage can occur, thereby increasing the risk of an engine stall and/or in the worst case, a fire due to a connecting rod puncturing the engine block allowing engine oil to leak onto a hot exhaust. A cause resulting from a manufacturing or design defect has not been identified. However, Kia is conducting this recall as a preventative measure to mitigate any unreasonable fire risk due to engine damage. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A vehicle stall increases the risk of crash. A fire increases the risk of injury. Description of the Cause : Undetermined. However, a broken connecting rod can puncture the engine block and cause a fire. Identification of Any Warning that can Occur : 1) Abnormal knocking noise from the engine; 2) Reduced motive power; 3) Illumination of the oil pressure warning light; and 4) burning smell, smoke. Involved Components : Component Name 1 : N/A Component Description : NR Component Part Number : NR Supplier Identification : Component Manufacturer Name : N/A Address : NR NR Country : NR Chronology : See attached document titled “2017-2018MY Optima HEV/PHEV Engine Compartment Fire Chronology” Part 573 Safety Recall Report 21V-844 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : All owners of the subject vehicles will be notified by first class mail with instructions to bring their vehicles to a Kia dealer. In an effort to mitigate a potential fire risk, dealers will be instructed to perform an engine test to determine the existence of any connecting rod bearing damage, and if necessary, replace the engine. Dealers will also be instructed to install a Knock Sensor Detection System (KSDS) software that will prevent engine damage from potential excessive connecting rod bearing wear. Upon completion of the KSDS software installation, Kia will extend the warranty coverage to 15 years/150,000 miles, whichever occurs first, for engine long block assembly repairs needed due to connecting rod bearing damage. Kia will reimburse owners for repair expenses already incurred pursuant to Kia’s General Reimbursement Plan filed May 11, 2020. How Remedy Component Differs from Recalled Component : N/A Identify How/When Recall Condition was Corrected in Production : N/A Recall Schedule : Description of Recall Schedule : Dealer notification will begin and end on 11/22/2021, and owner notification will begin and end on 11/29/2021. Planned Dealer Notification Date : NOV 22, 2021 – NOV 22, 2021 Planned Owner Notification Date : NOV 29, 2021 – NOV 29, 2021 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-844 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Kia Motors America Submission Date : NOV 09, 2021 NHTSA Recall No. : 21V-844 Manufacturer Recall No. : SC218 Manufacturer Information : Manufacturer Name : Kia Motors America Address : 111 Peters Canyon Road Irvine CA 92606 Company phone : 800-333-4542 Population : Number of potentially involved : 10,731 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2017-2018 Kia Optima Hybrid (HEV) Vehicle Type : LIGHT VEHICLES Body Style : ALL Power Train : HYBRID ELECTRIC Descriptive Information : All 2017-2018 model year Optima Hybrid (HEV) vehicles manufactured from 6/27/2016 through 11/21/2017 (8,311 vehicles). The recall population was determined by a review of vehicle production records. The vehicles subject to this recall were not produced in VIN order. Customers seeking information about their specific vehicle will be referred to Kia’s Consumer Assistance Center or their Kia dealer. Production Dates : JUN 27, 2016 – NOV 21, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2017-2018 Kia Optima Plug-in Hybrid (PHEV) Vehicle Type : LIGHT VEHICLES Body Style : ALL Power Train : HYBRID ELECTRIC Descriptive Information : All 2017-2018 Optima Plug-in Hybrid (PHEV) vehicles manufactured from 8/25/2016 through 4/27/2018 (2,420 vehicles). The recall population was determined by a review of vehicle production records. The vehicles subject to this recall were not produced in VIN order. Customers seeking information about their specific vehicle will be referred to Kia’s Consumer Assistance Center or their Kia dealer. Production Dates : AUG 25, 2016 – APR 27, 2018 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 21V-844 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : The connecting rod bearing can become damaged for different reasons. If the connecting rod bearing becomes damaged, abnormal knocking noise from the engine can occur and/or illumination of the oil pressure warning light. If the vehicle continues to be driven in this condition, engine damage can occur, thereby increasing the risk of an engine stall and/or in the worst case, a fire due to a connecting rod puncturing the engine block allowing engine oil to leak onto a hot exhaust. A cause resulting from a manufacturing or design defect has not been identified. However, Kia is conducting this recall as a preventative measure to mitigate any unreasonable fire risk due to engine damage. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A vehicle stall increases the risk of crash. A fire increases the risk of injury. Description of the Cause : Undetermined. However, a broken connecting rod can puncture the engine block and cause a fire. Identification of Any Warning that can Occur : 1) Abnormal knocking noise from the engine; 2) Reduced motive power; 3) Illumination of the oil pressure warning light; and 4) burning smell, smoke. Involved Components : Component Name 1 : [ ENGINE ASSY-SUB ] Component Description : [ SUB ENGINE ASSY ] Component Part Number : [ 189N1-2EH00 ] Supplier Identification : Component Manufacturer Name : [ KIA ] Address : [ 95, Kiajadongcha-ro, Ujeong-eup ] [ Hwaseong-si, Gyeonggi-do ] Foreign States [ 18571 ] Country : Korea, Republic of Chronology : See attached document titled “2017-2018MY Optima HEV/PHEV Engine Compartment Fire Chronology” Part 573 Safety Recall Report 21V-844 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : All owners of the subject vehicles will be notified by first class mail with instructions to bring their vehicles to a Kia dealer. In an effort to mitigate a potential fire risk, dealers will be instructed to perform an engine test to determine the existence of any connecting rod bearing damage, and if necessary, replace the engine. Dealers will also be instructed to install a Knock Sensor Detection System (KSDS) software that will prevent engine damage from potential excessive connecting rod bearing wear. Upon completion of the KSDS software installation, Kia will extend the warranty coverage to 15 years/150,000 miles, whichever occurs first, for engine long block assembly repairs needed due to connecting rod bearing damage. Kia will reimburse owners for repair expenses already incurred pursuant to Kia’s General Reimbursement Plan filed May 11, 2020. How Remedy Component Differs from Recalled Component : N/A Identify How/When Recall Condition was Corrected in Production : N/A Recall Schedule : Description of Recall Schedule : Dealer notification will begin and end on 11/22/2021, and owner notification will begin and end on 11/29/2021. Planned Dealer Notification Date : NOV 22, 2021 – NOV 22, 2021 Planned Owner Notification Date : NOV 29, 2021 – NOV 29, 2021 * NR – Not Reported

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