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Service bulletins for the 2021 Kia Telluride

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.

102 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_ELE4222026-06-03. 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).
SC357_TSB2026-03-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: ECU EMISSIONS SOFTWARE LOGIC IMPROVEMENT (SC357) - This bulletin provides information to upgrade the Engine Control Unit (ECU) system software to improve the emissions-related logic on 2020-2025MY Telluride (ON) vehicles equipped with the Lambda II 3.8L GDI engine, produced from January 9, 2019 through October 27, 2025. The subject vehicles may have engine calibrations that were not optimized for emissions standards under certain specific conditions, which may cause the vehicle to release air pollutants which exceed Federal and California standards.
SC357_OWNR2026-02-26. Emissions. ENGINE; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC357) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) for 2020-2025 MY Telluride vehicles to ensure compliance with emissions regulations.
SC357_STKR2026-02-12. Emissions. ENGINE; ELECTRICAL SYSTEM. SC357_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION LABEL/STICKER
SC357_POC2026-02-12. Emissions. ENGINE; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: SC357_POC: PROOF OF CORRECTION CARD
SC357_QA2026-02-12. Emissions. ELECTRICAL SYSTEM; ENGINE. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER (SC357) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign SC357.
SC357_DPSM2026-02-12. Emissions. ENGINE; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC357) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) to ensure compliance with emissions regulations for 2020-2025 MY Telluride vehicles manufactured from January 9, 2019 through October 27, 2025.
SC357_DP2026-02-12. Emissions. ELECTRICAL SYSTEM; ENGINE. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC357) - This document is the announcement to the dealer principals advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) to ensure compliance with emissions regulations for 2020-2025 MY Telluride vehicles manufactured from January 9, 2019 through October 27, 2025.
PS7932025-08-05. Service bulletin. ELECTRICAL SYSTEM. This Pitstop provides information regarding an inoperative sunroof switch on 2020–2025MY Telluride (ON) vehicles. When diagnosing a vehicle for this condition, check that connectors R02 and R03 are connected in the correct cavities. If these connectors were previously interchanged unintentionally, the sunroof switch will not operate.
TSB_ELE3782025-03-26. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT MODEM RESET (SA611) - This bulletin outlines the procedure for resetting the modem in certain 2016-2025MY Kia vehicles listed on page 3 that are equipped with Kia Connect Services. The affected vehicles may encounter the following issues: remote Start/Climate Control function not working, vehicle Status on the Kia Access App not updating, connected routing not functioning properly.
TSB_ELE347_R12024-12-20. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: DISPLAY AUDIO 2.0V/AVN5W SOFTWARE UPDATE - 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 Display Audio 2.0 (D2V) and AVN 5.0 Wide (AVN5W) head units on certain 2021-2023MY Kia vehicles (refer to pages 5 and 16). The affected vehicles may experience Apple CarPlay®/Android Auto™ phone projection connectivity-related concerns.
TSB_ELE3612024-12-11. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE DEALER MODE FACTORY RESET - This bulletin provides the procedure to perform the ‘Dealer Mode Factory Reset’ on multiple 2020-2021MY vehicles (listed on page 5) equipped with AVN 5.0 Wide head units. The affected vehicles may exhibit inoperable and/or interrupted Kia Connect services due to a logic error with the current software version. This logic error may affect the Kia Connect services: calendar, weather, sports, vehicle diagnostics, maintenance and/or Kia Connect services rendering these features inoperable.
SC301Y_TSB2024-07-31. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: WHEEL SPEED SENSOR REPLACEMENT (SC301Y) - This bulletin provides information related to the Technical Service Bulletin previously published under SC301, titled “WSS Software Upgrade”.
SC301_OWNR2024-05-23. Service campaign. SERVICE BRAKES; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC301) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign to inspect and, if necessary, replace the wheel speed sensor(s) in certain 2020-2024 MY Telluride vehicles. Kia will also update the Hydraulic Electronic Control Unit (HECU) software with improved logic.
SC301_TSB2024-05-23. Service campaign. ELECTRICAL SYSTEM; SERVICE BRAKES. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: WSS SOFTWARE UPGRADE (SC301) - This bulletin provides information to update the Wheel Speed Sensor (WSS) software on certain 2020-2024MY Telluride (ON) vehicles manufactured from January 9, 2019 through March 10, 2024.
SC301_QA2024-05-15. Service campaign. SERVICE BRAKES; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC301) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC301.
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_CLI0552024-02-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: DATC HEATER OPERATION LOGIC IMPROVEMENT - This bulletin provides information to upgrade the air condition (AIRCON) software logic on certain 2020-2023MY Telluride (ON) vehicles equipped with Dual Air Temperature Control (DATC), produced from January 9, 2019 through June 6, 2023. The affected vehicles may exhibit temporarily reduced heater performance in cold climates, especially during prolonged idle operation or coasting.
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_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_ELE209_R42023-08-24. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE REMINDER SETTING RESET PROCEDURE - 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 service reminder setting, which may have been auto-set by the Kia Vehicle Inspection and Delivery application (KVID) at time of Pre-Delivery Inspection (PDI). Beginning with the 2023MY, Oil Life Monitoring (OLM) has been applied to all models, except Forte (BDm), Stinger (CK), Telluride (ON) and Soul (SK3). Refer to TSB ENG241 for additional information. As of 08/11/2023, the service reminder auto-set feature by KVID has been disabled for ALL models NOT equipped with OLM.
PS677_R22023-04-28. Service bulletin. ELECTRICAL SYSTEM. PIT STOP: LOG FILE COLLECTION FOR AVN 5.0/W AND DISPLAY AUDIO 2.0 - 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 contains information regarding the log file collection procedure for 2020MY~ models equipped with AVN 5.0/W or Display Audio 2.0 head units.
SC243_TSB_R12022-11-02. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE. VOLUNTARY SERVICE CAMPAIGN: FRONT RADAR FCA/SCC MISDETECTION PREVENTION LOGIC IMPROVEMENT (SC243) - 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 logic of the Front Collision-Avoidance Assist (FCA) and Smart Cruise Control (SCC) system on certain 2020-2022MY Telluride (ON) vehicles listed below. If foreign material, snow/ice, or roadway debris blocks the front radar located in the front bumper area, misalignment may occur, causing improper obstacle detection by the FCA system without illumination of the FCA warning lamp. If this condition occurs, the vehicle may apply partial braking when passing other vehicles. This update is to adjust the FCA warning lamp strategy and set conditions to improve the detection of a front radar misalignment condition.
TSB_ENG219_R12022-09-30. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - 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 on setting the "Service Interval Reminder" feature available on most 2014-2023MY Kia vehicles (refer to model list on page 2). If the service interval reminder is set, the customer will be informed to have the next maintenance service performed, which can positively affect vehicle longevity and performance. Refer to TSB ENG241 for 2023MY~ vehicles equipped with the Oil Life Management System (OLMS) feature not included in table on page 2.
SC243_TSB2022-09-01. Service bulletin. FORWARD COLLISION AVOIDANCE; ELECTRICAL SYSTEM; ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. VOLUNTARY SERVICE CAMPAIGN: FRONT RADAR FCA/SCC MISDETECTION PREVENTION LOGIC IMPROVEMENT (SC243) - This bulletin provides information to update the software logic of the Front Collision-Avoidance Assist (FCA) and Smart Cruise Control (SCC) system on certain 2020-2022MY Telluride (ON) vehicles listed below. If foreign material, snow/ice, or roadway debris blocks the front radar located in the front bumper area, misalignment may occur, causing improper obstacle detection by the FCA system without illumination of the FCA warning lamp. If this condition occurs, the vehicle may apply partial braking when passing other vehicles. This update is to adjust the FCA warning lamp strategy and set conditions to improve the detection of a front radar misalignment condition.

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