# Service bulletins for the 2023 Kia Sorento

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

75 bulletins from NHTSA, as of 2026-10-19.

- [TSB\_CLI049\_R2](/bulletins/11036628.md), 2026-09-02, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR \- 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 the partial repair of the Air Conditioning \(A/C\) compressor assembly on some 2011MY\~ Optima Hybrid \(TF HEV, JF HEV/PHEV\), 2015MY\~ Soul EV \(PS EV\), 2017MY\~ Niro \(DE HEV/PHEV/EV\), 2022MY\~ EV6 \(CV\), 2021MY\~ Sorento \(MQ4 HEV/PHEV\), 2023MY\~ Sportage \(NQ5 HEV/PHEV\), and 2023MY\~ Niro \(SG2 EV/HEV/PHEV\) vehicles.
- [WTY043\_TSB](/bulletins/11034002.md), 2026-06-18, Warranty extension: STRUCTURE:BODY. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: REAR RH DOOR CURTAIN INSPECTION / REPLACEMENT \(WTY043\) \- This bulletin provides information associated with the ‘Warranty Extension Program’ \(WTY043\) inspect and, if necessary replace the rear RH door curtain on certain 2023 \- 2026MY Sorento Hybrid \(MQ4 HEV\) SX Prestige vehicles produced from June 27, 2022 through December 05, 2025 and certain 2023 – 2026MY Sorento Plug\-In Hybrid \(MQ4 PHEV\) SX\-Prestige vehicles produced from June 27, 2022 through November 22, 2025. The affected vehicle’s rear RH door curtain may not return to the fully retracted position. Under this program, the New Vehicle Warranty coverage for this condition is 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.
- [TSB\_BOD336](/bulletins/11033934.md), 2026-06-17, Service bulletin: STRUCTURE:BODY. TECHNICAL SERVICE BULLETIN: KEY AND CYLINDER SET REPLACEMENT \- This bulletin provides information to replace the driver’s door lock and trunk lid key cylinders on some 2019\-2024MY Kia vehicles listed below. On affected vehicles, the stored key code may not correspond to the mechanical key profile, which can result in incorrect key cutting when the original key is lost or damaged.
- [TSB\_ELE422](/bulletins/11033217.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL 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 \(2021\-2026MY All Models\).
- [WTY043\_REIMB](/bulletins/11032905.md), 2026-05-23, Warranty extension: STRUCTURE:BODY. WARRANTY EXTENSION CAMPAIGN: REIMBURSEMENT FORM \(WTY043\) \- 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.
- [WTY043\_OWNR](/bulletins/11032904.md), 2026-05-23, Warranty extension: STRUCTURE:BODY. WARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION \(WTY043\) \- This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for certain repairs related to the rear right\-hand \(RH\) door curtain in certain 2023\-2026 MY Sorento Hybrid \(HEV\) SX\-Prestige and Sorento Plug\-in Hybrid \(PHEV\) SX\-Prestige 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.
- [WTY043\_QA](/bulletins/11032903.md), 2026-05-22, Warranty extension: STRUCTURE:BODY. WARRANTY EXTENSION CAMPAIGN: QUESTION AND ANSWER \(WTY043\) \- This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY043.
- [WTY043\_DPSM](/bulletins/11032902.md), 2026-05-22, Warranty extension: STRUCTURE:BODY. WARRANTY EXTENSION CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO \(WTY043\) \- This document is the announcement to the dealer Parts and Service managers advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for certain repairs related to the rear right\-hand \(RH\) door curtain in certain 2023\-2026 MY Sorento Hybrid \(HEV\) SX\-Prestige vehicles manufactured from June 27, 2022 through December 5, 2025 and certain 2023\-2026 MY Sorento Plug\-in Hybrid \(PHEV\) SX\-Prestige vehicles, manufactured from June 27, 2022 through November 22, 2025.
- [WTY043\_DP](/bulletins/11032901.md), 2026-05-22, Warranty extension: STRUCTURE:BODY. WARRANTY EXTENSION CAMPAIGN: DEALER PRINCIPAL MEMO \(WTY043\) \- This document is the announcement to the dealer principals advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for certain repairs related to the rear right\-hand \(RH\) door curtain in certain 2023\-2026 MY Sorento Hybrid \(HEV\) SX\-Prestige vehicles manufactured from June 27, 2022 through December 5, 2025 and certain 2023\-2026 MY Sorento Plug\-in Hybrid \(PHEV\) SX\-Prestige vehicles, manufactured from June 27, 2022 through November 22, 2025.
- [TSB\_CHA126\_R2](/bulletins/11032900.md), 2026-05-22, Service bulletin: SERVICE BRAKES. TECHNICAL 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.
- [TSB\_ELE417](/bulletins/11031906.md), 2026-05-01, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL 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.
- [WTY042\_TSB](/bulletins/11030389.md), 2026-04-01, Service bulletin: ELECTRICAL SYSTEM. WARRANTY 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.
- [WTY042\_REIMB](/bulletins/11030388.md), 2026-04-01, Warranty extension: ELECTRICAL SYSTEM. WARRANTY 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.
- [WTY042\_QA](/bulletins/11030387.md), 2026-04-01, Warranty extension: ELECTRICAL SYSTEM. WARRANTY 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.
- [WTY042\_OWNR](/bulletins/11030386.md), 2026-04-01, Warranty extension: ELECTRICAL SYSTEM. WARRANTY 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.
- [WTY042\_DPSM](/bulletins/11030385.md), 2026-04-01, Warranty extension: ELECTRICAL SYSTEM. WARRANTY 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.
- [WTY042\_DP](/bulletins/11030383.md), 2026-04-01, Warranty extension: ELECTRICAL SYSTEM. WARRANTY 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.
- [TSB\_ELE394](/bulletins/11030345.md), 2026-03-31, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN5.0W DTC P17A000 DAIGNOSTIC PROCEDURE \- This bulletin provides information regarding a potential illuminated Malfunction Indicator Lamp \(MIL\) accompanied by DTC P17A000 on some 2022\-2025MY Hybrid Electric Vehicles \(HEV\) and Plug\-In Hybrid Electric Vehicles \(PHEV\) equipped with AVN5.0Wide head units listed below. This condition occurs when the Global Positioning System \(GPS\) module within the Audio Video Navigation \(AVN\) head unit, sends an inaccurate signal to the Hybrid Power Control Unit \(HPCU\), causing the DTC to set. There are no drivability symptoms associated with this condition.
- [SC325\_TSB\_R1](/bulletins/11029043.md), 2026-02-26, Service bulletin: ENGINE; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: AEWP INSPECTION AND REPLACEMENT \(SC325\) \- 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 inspect and, if necessary, replace the Auxiliary Electric Water Pump \(AEWP\), control harness wiring, and/or engine room junction box for coolant intrusion and/or corrosion on certain 2022\-2023MY Kia Hybrid and Plug\-in Hybrid vehicles listed in the table below. The AEWP in the subject vehicles may crack internally and allow coolant to intrude into the AEWP circuitry. If coolant enters the AEWP circuitry, the Check Engine Light \(CEL\) may be illuminated with one or more DTCs listed on page 2. If the vehicle continues to be driven in this condition, the Active Air Flap \(AAF\) warning message can also activate, and coolant may eventually migrate through the wiring harness to the engine room junction block. This may result in a reduction of motive power and may cause the vehicle to release air pollutants which exceeds Federal and California standards. These standards were established to protect the public health and welfare from the dangers of air pollution.
- [PS797](/bulletins/11026698.md), 2025-12-18, Other: BACK OVER PREVENTION: WARNINGS. PITSTOP: 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. \(Please note that this Pitstop only applies to models/trims that are equipped with the ultrasonic sensors.\)
- [TSB\_ENG257](/bulletins/11026530.md), 2025-12-10, Service bulletin: ENGINE. TECHNICAL 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.
- [TSB\_TRA112](/bulletins/11023106.md), 2025-09-12, Service bulletin: POWER TRAIN. TECHNICAL SERVICE BULLETIN: TRANSAXLE ASSEMBLY REPLACEMENT \& HCU LOGIC IMPROVEMENT \- This bulletin provides information to replace the transaxle assembly and upgrade the Hybrid Control Unit Low\-Voltage DC Converter \(HCULDC\) software on some 2022\-2024MY Sorento Plug\-In Hybrid \(MQ4 PHEV\) vehicles equipped with a 1.6L T\-GDI engine and All\-Wheel Drive \(AWD\), produced from June 29, 2021 through January 10, 2024. Some vehicles may experience an illuminated Malfunction Indicator Lamp \(MIL\) with DTC P0C4E00 stored, accompanied by a rough transition when the vehicle switches between EV and HEV motive power.
- [TSB\_CHA126V\_R1](/bulletins/11019475.md), 2025-06-11, Service bulletin: SERVICE BRAKES. TECHNICAL 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.
- [SC298\_OWNR\_201](/bulletins/11018298.md), 2025-05-14, Service campaign: STRUCTURE:BODY; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: OWNER RENOTIFICATION \(SC298\) \- This document is the owner renotification advising that Kia is conducting a Voluntary Service Campaign to apply additional body seam sealer to prevent potential water intrusion into the blower motor in certain 2023\-2024 MY Sorento vehicles. Kia dealers will also inspect and, if necessary, replace the blower motor
- [TSB\_TRA046\_R5](/bulletins/11017172.md), 2025-04-23, Service bulletin: POWER TRAIN. TECHNICAL 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.

More: [the next page](/v1/vehicles/2023_kia_sorento/bulletins?cursor=2025-04-23_11017172) (JSON)

JSON: [/v1/vehicles/2023_kia_sorento/bulletins](/v1/vehicles/2023_kia_sorento/bulletins)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%202023%20Kia%20Sorento&page=https%3A%2F%2Fopen.wenmarpro.com%2Fmakes%2Fkia%2Fsorento%2F2023%2Fbulletins&vehicle=2023%20Kia%20Sorento)