Kia Sorento Service Bulletins (2021)
104 manufacturer communications on file.
- June 8, 2026•Document ID: 11034003Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- CS2312_TSB_R2
- Date Added:
- June 18, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - 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. This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) did receive the Anti-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
Associated Products (13)Associated Documents - May 28, 2026•Document ID: 11033217Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE422
- Date Added:
- June 3, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater available at update.kia.com. The software update may improve system performance, enhance existing features, and apply the latest operating software for supported vehicles (2021-2026MY All Models).
Associated Products (67)Associated Documents - May 6, 2026•Document ID: 11032900Service Bulletin/Repair InstructionsSERVICE BRAKES
- Mfr Comm. #:
- TSB_CHA126_R2
- Date Added:
- May 22, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: FRONT BRAKE DISC REPLACEMENT & BURNISHING - 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. This bulletin provides the procedure to replace the front brake discs on certain 2021-2024MY Sorento (MQ4a) vehicles produced from July 26, 2021 through March 28, 2024 and 2023-2024MY Sportage (NQ5a) vehicles produced from January 7, 2022 through May 20, 2024 to address a customer’s complaint of brake judder. The affected vehicles may exhibit a vibrating and/or pulsing sensation (front brake disc judder) in the steering wheel, brake pedal, and/or seat when the brakes are applied during driving.
Associated Products (6)Associated Documents - April 14, 2026•Document ID: 11031906Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE417
- Date Added:
- May 1, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infotainment software updates and preparing USB for installation on applicable Kia vehicles. The software downloads and USB preparation process is similar across all supported platforms; however, in‑vehicle installation procedures vary by head unit type.
Associated Products (40)Associated Documents - March 26, 2026•Document ID: 11030386Warranty Program/ExtensionELECTRICAL SYSTEM
- Mfr Comm. #:
- WTY042_OWNR
- Date Added:
- April 1, 2026
- Manufacturer:
- KIA
SummaryWARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION (WTY042) - This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the horn assembly in certain 2021-2025 MY Sorento, 2021-2025 MY Sorento Hybrid (HEV), and 2022-2025 MY Sorento Plug-in Hybrid (PHEV) vehicles from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address a horn sound malfunction condition free of charge at no cost to the customer.
Associated Products (5)Associated Documents - March 24, 2026•Document ID: 11030389Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- WTY042_TSB
- Date Added:
- April 1, 2026
- Manufacturer:
- KIA
SummaryWARRANTY EXTENSION CAMPAIGN: TECHNICAL SERVICE BULLETIN: HORN ASSEMBLY INSPECTION AND REPLACEMENT (WTY042) - This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY042) to inspect and, if necessary, replace the horn assembly on certain vehicles listed in the table below. The affected vehicles may experience an unusual or different horn sound than normal, or an inoperative horn, caused by corrosion inside the electric horn and/or carbonization of the contact point. The warranty coverage for repairs related to the horn assembly has been extended from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
Associated Products (5)Associated Documents - March 24, 2026•Document ID: 11030388Warranty Program/ExtensionELECTRICAL SYSTEM
- Mfr Comm. #:
- WTY042_REIMB
- Date Added:
- April 1, 2026
- Manufacturer:
- KIA
SummaryWARRANTY EXTENSION CAMPAIGN: REIMBURSEMENT FORM (WTY042) - This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the warranty extension campaign program launch.
Associated Products (5)Associated Documents - March 24, 2026•Document ID: 11030387Warranty Program/ExtensionELECTRICAL SYSTEM
- Mfr Comm. #:
- WTY042_QA
- Date Added:
- April 1, 2026
- Manufacturer:
- KIA
SummaryWARRANTY EXTENSION CAMPAIGN: QUESTION AND ANSWER (WTY042) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY042.
Associated Products (5)Associated Documents - March 24, 2026•Document ID: 11030385Warranty Program/ExtensionELECTRICAL SYSTEM
- Mfr Comm. #:
- WTY042_DPSM
- Date Added:
- April 1, 2026
- Manufacturer:
- KIA
SummaryWARRANTY EXTENSION CAMPAIGN: DEALER PARTS & SERVICE MANAGER MEMO (WTY042) - This document is the announcement to the dealer Parts and Service managers advising that Kia is is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the horn assembly for eligible vehicles, from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, from the date the vehicle was first put into service. This warranty extension is to address a horn sound malfunction condition on 2021-2025 MY Sorento vehicles manufactured from September 10, 2020, through June 3, 2025, 2021-2025 MY Sorento Hybrid (HEV) vehicles manufactured from September 2, 2020, through January 24, 2025, and 2022-2025 MY Sorento Plug-In Hybrid (PHEV) vehicles manufactured from June 29, 2021, through January 20, 2025.
Associated Products (5)Associated Documents - March 24, 2026•Document ID: 11030383Warranty Program/ExtensionELECTRICAL SYSTEM
- Mfr Comm. #:
- WTY042_DP
- Date Added:
- April 1, 2026
- Manufacturer:
- KIA
SummaryWARRANTY EXTENSION CAMPAIGN: DEALER PRINCIPAL MEMO (WTY042) - This document is the announcement to the dealer principals advising that Kia is is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the horn assembly for eligible vehicles, from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, from the date the vehicle was first put into service. This warranty extension is to address a horn sound malfunction condition on 2021-2025 MY Sorento vehicles manufactured from September 10, 2020, through June 3, 2025, 2021-2025 MY Sorento Hybrid (HEV) vehicles manufactured from September 2, 2020, through January 24, 2025, and 2022-2025 MY Sorento Plug-In Hybrid (PHEV) vehicles manufactured from June 29, 2021, through January 20, 2025.
Associated Products (5)Associated Documents - February 19, 2026•Document ID: 11028908Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- TSB_CS2312_R1
- Date Added:
- February 19, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - 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. This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whole Integrated Body control Unit (IBU) / Body Control Module (BCM) did receive the Ant-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
Associated Products (11)Associated Documents - December 18, 2025•Document ID: 11026825Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- TSB_CS2312
- Date Added:
- December 24, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 19, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) did receive the Anti-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
Associated Products (13)Associated Documents - December 17, 2025•Document ID: 11026980OtherSTRUCTURE:BODY
- Mfr Comm. #:
- CS2312_OWNR
- Date Added:
- January 5, 2026
- Manufacturer:
- KIA
SummaryCUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION (CS2312) - This document is the owner notification advising that Kia is conducting Customer Satisfaction Campaign. A software upgrade that addresses the social media theft method has been made available to owners of eligible Kia model vehicles free of charge at authorized Kia dealers since 2023. In addition to the anti-theft software, a new zinc-reinforced ignition cylinder protector hardware upgrade has been developed and can be installed at the ignition cylinder location to provide additional protection against the social media theft method. Because the subject Kia vehicles were not factory-equipped with an engine immobilizer and were previously eligible for the software upgrade, these vehicles are eligible until March 31, 2027, to have the ignition cylinder protector installed—if requested—at no cost through an authorized Kia dealership. (Mailing of these notifications to vehicle owners will be completed from December 17, 2025 through February 27, 2026)
Associated Products (13)Associated Documents - December 9, 2025•Document ID: 11026698OtherBACK OVER PREVENTION: WARNINGS
- Mfr Comm. #:
- PS797
- Date Added:
- December 18, 2025
- Manufacturer:
- KIA
SummaryPITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultrasonic sensors. The PDW system alerts the driver while parking, by calculating distance based on the difference in signal transmission and reception times between the vehicle (ultrasonic sensor) and an object. The membrane film of the ultrasonic sensor is used for object detention and can be damaged by stone chips or foreign substances while driving. Damage to the cover of the ultrasonic sensor can also lead to damage to the internal circuit. As a result of this external damage, the PDW system may not receive the proper signal from the ultrasonic sensor. In some cases, the system may cause a false alarm, no alert, or phantom warnings by a “Warning Lamp’ to be displayed on the cluster. The ultrasonic sensor membrane film should be always inspected for external damage and if any part replacement should be treated as a general repair, not as a warranty claim repair for this concern. (Please note that this Pitstop only applies to models/trims that are equipped with the ultrasonic sensors.)
Associated Products (60)Associated Documents - December 8, 2025•Document ID: 11026530Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- TSB_ENG257
- Date Added:
- December 10, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: ITM REPLACEMENT AND ECM & TCM LOGIC IMPROVEMENT (CA2508) - This bulletin provides information to replace the Integrated Thermal Management Module (ITM) and then upgrade the Engine Control Module ‘ECM’ and (if applicable) the Transmission Control Module ‘TCM’ system software on certain 2021-2023MY Sorento (MQ4a) vehicles produced from September 09, 2020 through December 19, 2023. The affected vehicles may experience an illuminated Multifunction Indicator Lamp (MIL) ‘ON’ with DTC(s) P218100, P2181F0, and/or P2181F1 stored. This condition may occur due to degradation of the diaphragm inside the ITM. There are no drivability or other symptoms associated with this condition.
Associated Products (3)Associated Documents - October 17, 2025•Document ID: 11024484Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- TSB_FUE068
- Date Added:
- October 24, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: GDI FUEL INJECTOR REPLACEMENT FOR MISFIRE DTC(S) THETA III 2.5L GDI (CA2505) - 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. This bulletin provides information regarding cylinder misfire DTCs stored on some 2021-2023MY Kia models listed in the on the table on page 4, equipped with a naturally aspirated Theta III 2.5L GDI engine and dual fuel injection, where a low-pressure (MPI) injector and a high-pressure (GDI) injector independently supply fuel to each cylinder. A GDI fuel injector may become damaged due to exposure to fuel containing ethanol, potentially resulting in the malfunction indicator lamp (MIL) illuminating, along with no-start, misfire, and/or reduced power, while driving at highway speeds remains possible.
Associated Products (3)Associated Documents - June 30, 2025•Document ID: 11019972Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- TSB_FUE068
- Date Added:
- July 1, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: GDI FUEL INJECTOR REPLACEMENT FOR MISFIRE DTC(S) THETA III 2.5L GDI (CA2505) -This bulletin provides information regarding cylinder misfire DTCs stored on some 2021-2023MY Kia models listed in the table below equipped with a naturally aspirated Theta III 2.5L GDI engine and dual fuel injection, where a low-pressure (MPI) injector and a high-pressure (GDI) injector independently supply fuel to each cylinder. A GDI fuel injector may become damaged due to exposure to fuel containing ethanol, potentially resulting in the malfunction indicator lamp (MIL) illuminating, along with no-start, misfire, and/or reduced power, while driving at highway speeds remains possible.
Associated Products (3)Associated Documents - June 30, 2025•Document ID: 11019970Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- TSB_FUE066_CLSD
- Date Added:
- July 1, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: GDI FUEL INJECTOR REPLACEMENT FOR MISFIRE DTC(S) - CLOSED AND SUPERSEDED BY FUE068/CA2505 - This bulletin is now closed. This bulletin provides information regarding cylinder misfire DTCs stored on some 2021-2023MY Kia models listed in the table below equipped with a naturally aspirated Theta III 2.5L GDI engine and dual fuel injection, where a low-pressure (MPI) injector and a high-pressure (GDI) injector independently supply fuel to each cylinder. A GDI fuel injector may become damaged due to exposure to fuel containing ethanol, potentially resulting in the malfunction indicator lamp (MIL) illuminating, along with no-start, misfire, and/or reduced power, while driving at highway speeds remains possible.
Associated Products (3)Associated Documents - June 3, 2025•Document ID: 11019475Service Bulletin/Repair InstructionsSERVICE BRAKES
- Mfr Comm. #:
- TSB_CHA126V_R1
- Date Added:
- June 11, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: FRONT BRAKE DISC REPLACEMENT - 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. This bulletin provides the procedure to replace the front brake discs on certain 2021-2024MY Sorento (MQ4a) vehicles produced from July 26, 2021 through March 28, 2024 and 2023-2024MY Sportage (NQ5a) vehicles produced from January 7, 2022 through May 20, 2024 to address a customer’s complaint of brake judder. The affected vehicles may exhibit a vibrating and/or pulsing sensation (front brake disc judder) in the steering wheel, brake pedal, and/or seat when the brakes are applied during driving.
Associated Products (6)Associated Documents - April 17, 2025•Document ID: 11017172Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- TSB_TRA046_R5
- Date Added:
- April 23, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - 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. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, and the transmission oil cooler is transferred to the new transmission.
Associated Products (55)Associated Documents