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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 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
TSB_TRA1112024-08-01. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. TECHNICAL SERVICE BULLETIN: 8-SPEED DUAL CLUTCH TRANSMISSION EOP SENSORLESS LOGIC IMPROVEMENT - This bulletin provides information to improve the Electric Oil Pump ‘EOP’ operation logic of the automatic transmission ‘A/T’ on some 2021-2023MY Sorento (MQ4a) vehicles produced from September 9, 2020 through December 29, 2023 and 2021-2023MY K5 (DL3a) vehicles produced from March 24, 2020 to December 18, 2023, equipped with a 2.5L T-GDI Theta III engines and 8-Speed Dual Clutch Transmissions (DCT).
TSB_ELE3472024-07-31. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: DISPLAY AUDIO 2.0V/AVN5W SOFTWARE UPDATE - This bulletin provides information to update the software on Display Audio 2.0 (D2V) and 5th Generation AVN Wide (AVN5W) head units on certain 2021-2023MY Kia vehicles. The affected vehicles may experience Apple CarPlay®/Android Auto™ phone projection connectivity-related concerns.
TSB_ELE3522024-07-24. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) (SA582) - This bulletin provides information to update the software on 5th Generation AVN wide on certain 2023-2024MY Kia vehicles (refer to model list on page 3) to remedy a ‘non-responsive’ or ‘inoperative’ radio (FM, AM, SXM, etc.) concern. The affected AVN unit on the vehicles may not respond when pressing the ‘RADIO’ hard key/button on the AVN unit or when selecting the ‘RADIO’ icon on the AVN menu screen. Also, a warning sound accompanied by a ‘Slippery road ahead. Drive carefully’ or ‘Uneven road ahead. Drive carefully’ warning can be displayed on the instrument cluster. The current AVN software causes the warning sound and message to repeat approximately every ten (10) seconds, if the vehicle is not in motion, in ‘PARK’ or driving on even surfaces.
TSB_ELE3432024-07-01. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: ICU LOGIC UPGRADE FOR OIL CHANGE REMINDER DISPLAY (SA573) - This bulletin provides information to improve the Integrated Central Control Unit (ICU) operation logic on certain 2023MY Sorento PHEV (MQ4 PHEV) vehicles produced from June 27, 2022 through August 16, 2023. The affected vehicles may be unable to reset the ‘Oil Change Reminder’ notice on the instrument cluster. The updated software will allow access to reset the ‘Oil Change Reminder’ notice on the instrument cluster via the AVN menu.
SC298_OWNR2024-05-06. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC298) - This document is the owner notification 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.
SC298_TSB2024-04-02. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: COWL WATER INTRUSION REPAIR (SC298) - This bulletin provides information to apply additional body seam sealer and also to inspect and, if necessary, replace the blower motor on certain 2023-2024MY Sorento (MQ4a) vehicles produced at Kia Georgia (KaGA)from October 25, 2023 through February 11, 2024. The HVAC (Heating, Ventilation, and Air Conditioning) system uses cooling and heating to help maintain a pleasant environment inside the vehicle. The blower motor controls the airflow for the HVAC system. Due to improper body seam sealer application at the HVAC fresh air intake, water may enter through the HVAC fresh air intake and onto the blower motor, potentially causing the blower motor to be noisy, operate more slowly, and eventually become inoperative. If this occurs, customers may experience reduced HVAC fan speed, noise and, in some cases, wet carpets.
SC298_QA2024-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC298) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC298.
SC298_DPSM2024-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC298) - This document is the announcement to the dealer Parts and Service Managers that Kia is conducting a Voluntary Service Campaign on certain 2023-2024 Sorento vehicles manufactured from October 25, 2023 through February 11, 2024 to apply additional body seam sealer to prevent potential water intrusion into the blower motor. Kia dealers will also inspect and, if necessary, replace the blower motor.
SC298_DP2024-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC298) - This document is the announcement to the dealer principals that Kia is conducting a Voluntary Service Campaign on certain 2023-2024 Sorento vehicles manufactured from October 25, 2023 through February 11, 2024 to apply additional body seam sealer to prevent potential water intrusion into the blower motor. Kia dealers will also inspect and, if necessary, replace the blower motor.
TSB_ELE303_R22024-03-02. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) - 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 update the software on 5th Generation AVN wide on certain 2020-2024MY Kia vehicles (refer to model list on page 3) to remedy a 'non-responsive' or 'inoperative' radio (FM, AM, SXM, etc. ) concern. The affected AVN unit on the vehicles may not respond when pressing the 'RADIO' hard key/button on the AVN unit or when selecting the 'RADIO' icon on the AVN menu screen.
TSB_ELE3202024-01-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE SCREEN FREEZING OR MAP DELAY WITH WIRED APPLE CARPLAY - This bulletin provides information to update the software on 5th Generation AVN wide on certain 2020-2023MY Kia vehicles to remedy an inaccurate map location, freezing AVN screen, or experiencing a delay when using Google Maps or Waze through wired Apple CarPlay.
TSB_ELE316_R12023-12-05. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) (SA550) - 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 update the software on 5th Generation AVN wide on some 2023MY Sorento (MQ4a) vehicles produced from December 02, 2022 through July 19, 2023 to improve a 'non-responsive' or ‘inoperative’ radio (FM, AM, SXM, etc.) concern. The affected AVN unit on the vehicles may not respond when pressing the 'RADIO' hard key/button on the AVN unit or when selecting the ‘RADIO’ icon on the AVN menu screen. Kia is requesting the completion of this Service Action on all affected vehicles in dealer stock, prior to delivery
TSB_ELE3162023-11-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) (SA550) - This bulletin provides information to update the software on 5th Generation AVN wide on some 2023MY Sorento (MQ4a) vehicles produced from December 02, 2022 through July 19, 2023 to improve a 'non-responsive' or 'inoperative' radio (FM, AM, SXM, etc.) concern. The affected AVN unit on the vehicles may not respond when pressing the 'RADIO' hard key/button on the AVN unit or when selecting the 'RADIO' icon on the AVN menu screen. Kia is requesting the completion of this Service Action on all affected vehicles in dealer stock, prior to delivery.
TSB_ELE3142023-11-04. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: UNEVEN/SLIPPERY ROAD WARNING DISPLAYED ON INSTRUMENT CLUSTER - This bulletin provides information to update the software on 5th Generation AVN wide on certain 2020-2023MY Kia vehicles (refer to model list on page 3) to remedy a warning sound accompanied by a 'Slippery road ahead. Drive carefully' or 'Uneven road ahead. Drive carefully' warning which is displayed on the instrument cluster. The current AVN software causes the warning sound and message to repeat approximately every ten (10) seconds, if the vehicle is not in motion, in 'PARK' or driving on even surfaces.
TSB_ELE3032023-09-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) - This bulletin provides information to update the software on 5th Generation AVN wide on certain 2020-2023MY Kia vehicles to remedy a 'non-responsive' or 'inoperative' radio (FM, AM, SXM, etc.) concern. The affected AVN unit on the vehicles may not respond when pressing the 'RADIO' hard key/button on the AVN unit or when selecting the 'RADIO' icon on the AVN menu screen. Follow the procedure outlined in this publication to update the software on 5th Generation AVN wide units using the applicable USB Flash Drive A or B for the applicable vehicle.
TSB_CLI049_R12023-07-05. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:COMPRESSOR; VISIBILITY. 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 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.
TSB_ENG239_R12023-04-28. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. TECHNICAL SERVICE BULLETIN: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC23) - 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 related to extracting "in use performance tracking" emissions data from the Engine Control Unit (ECU) of certain vehicles sold in California. The California Air Resources Board (CARB) requires the emissions data from vehicles with a minimum of 3,000 accumulated miles without reprogramming or resetting. To facilitate collection of this data at the dealer level, KDS screenshots will allow the capture of relevant parameters.
TSB_ELE2852023-04-06. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: MQ4 P/HEV GAMMA 1.6L T-GDI ECM & HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION: This bulletin provides the procedure to update the software logic of the 'Engine' and Hybrid Control Unit Low DC-DC Converter 'HCULDC' systems on certain 2021-2023MY Sorento HEV, PHEV (MQ4 P/HEV) w/ Gamma 1.6L T-GDI vehicles produced from July 1, 2021 through November 3, 2022. The affected vehicles may exhibit a MIL 'ON' with DTCs stored (P144100, P1A7795, P00B700, P211800, P040100, P023600, P029900, P2B6000) due to the engine oil becoming diluted with fuel and/or moisture caused by repeated short drive trips, in low outdoor temperature (32 degree F-) environments.
CS2304_TSB2023-04-06. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM), or Intelligent Integrated Platform Module (IPM) system on certain 20132015MY Sorento (XMa), 2016-2020MY Sorento (UMa), and 2021-2023MY Sorento (MQ4a) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation.
TSB_ELE272_R12023-02-02. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: CLUSTER LOGIC IMPROVEMENT FOR ADAS ALERT VOLUME CHANGE (SA517) - 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 update the software logic of the Cluster (CLU) system on some 2023MY vehicles to allow the Advanced Driver Assistance System (ADAS) default alert volume to be changed. Kia is requesting the completion of this Service Action on all affected vehicles in dealer stock, prior to delivery.
TSB_ELE2722022-12-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: CLUSTER LOGIC IMPROVEMENT FOR ADAS ALERT VOLUME CHANGE (SA517) - This bulletin provides the procedure to update the software logic of the Cluster (CLU) system on some 2023MY vehicles to allow the Advanced Driver Assistance System (ADAS) default alert volume to be changed. Kia is requesting the completion of this Service Action on all affected vehicles in dealer stock, prior to delivery.
TSB_ELE209_R32022-08-18. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE REMINDER SETTING RESET PROCEDURE - This bulletin provides the procedure to turn OFF the service reminder lamp, at the first service interval reminder alert that will display on the instrument cluster. The KDS is required to change the setting from "Workshop" to "Customer Mode."
PS672_R12022-08-18. Service bulletin. ELECTRICAL SYSTEM; SEATS. PITSTOP: REAR OCCUPANT ALERT (ROA) W/REAR DOOR LOGIC - 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 Pitstop provides information regarding the Rear Occupant Alert (ROA) with Rear Door Logic system on all 21MY~ models equipped with this feature. This system is designed to help prevent a rear passenger from being left inside the vehicle when exiting. The "Check Rear Seats" message will display on the cluster when driver opens the front door, if during vehicle operation the rear doors (one or both) were opened and closed.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.