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Service bulletins for the 2021 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.

121 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
PS656_R22021-09-03. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: REAR OCCUPANT ALERT (ROA) WITH ULTRASONIC OPERATION - 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 ultrasonic sensor feature designed to alert the driver, in the event that a rear passenger is remaining inside the vehicle.
TSB_ELE044_R22021-08-25. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: HIGH-VOLTAGE BATTERY ORDERING AND RETURN 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 outlines the ordering and return procedure for high-voltage Lithium-ion batteries equipped on EV/hybrid vehicles (hereafter referred to as "high-voltage batteries" or HVBs).
PS7042021-08-25. Service bulletin. FORWARD COLLISION AVOIDANCE; ELECTRICAL SYSTEM. PITSTOP: FRONT RADAR SENSOR MOUNTING INSPECTION (PS704) - This pitstop provides information regarding front radar sensor alignment on 2014MY and later vehicles that may exhibit a warning light ON related to radar sensor alignment errors in the Forward Collision-Avoidance Assist (FCA)/Smart Cruise Control (SCC) system.
PS677_R12021-06-15. 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.
PS6872021-05-19. Service bulletin. ELECTRICAL SYSTEM; STEERING. PIT STOP: DIAGNOSING HAPTIC MOTOR CONCERNS - This Pitstop provides information regarding a "Check Haptic Steering Wheel System" message displayed on the cluster on some 2021MY Sorento (MQ4a) vehicles, with DTC B247300 which may be related to a poor connection in the haptic motor circuit.
TSB_ELE229_R32021-04-15. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: DISPLAY AUDIO 2.0 VALUE SOFTWARE UPDATE FOR WIRELESS CARPLAY IMPROVEMENT - 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 head unit software on some 2021MY K5 (DL3a), Sorento (MQ4a), and Sorento Hybrid (MQ4 HEV) vehicles equipped with a Display Audio 2.0 Value head unit, which may exhibit a wireless CarPlay connectivity issue with Apple phones running iOS14 software version.
TSB_ELE209_R22021-04-15. 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 the procedure to turn OFF the service reminder lamp, at the first service interval reminder alert that will display on the instrument cluster.
PS576_R12021-04-06. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: BATTERY DEALER / CUSTOMER MODE SWITCH - 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 a new interface related to the electronic Dealer / Customer Mode Switch setting on multiple models.
TSB_ELE209_R12021-03-24. 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 the procedure to turn OFF the service reminder lamp, at the first service interval reminder alert that will display on the instrument cluster.
PS6772021-03-24. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: LOG FILE COLLECTION FOR AVN 5.0/W & DISPLAY AUDIO 2.0 - 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.
TSB_ELE229_R12021-03-04. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: COMBINATION TSB / SERVICE ACTION: DISPLAY AUDIO 2.0 SOFTWARE UPDATE FOR WIRELESS CARPLAY ISSUE (SA460) - 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 head unit software on some 2021MY K5 (DL3a), Sorento (MQ4a), and Sorento Hybrid (MQ4 HEV) vehicles equipped with a Display Audio 2.0 head unit, which may exhibit a wireless CarPlay connectivity issue with Apple phones running iOS14 software version.
TSB_ELE2292021-02-02. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DISPLAY AUDIO 2.0 SOFTWARE UPDATE FOR WIRELESS CARPLAY ISSUE (SA460) - This bulletin provides the procedure to update the head unit software on some 2021MY K5 (DL3a), Sorento (MQ4a), and Sorento Hybrid (MQ4 HEV) vehicles (refer to affected vehicle range on page 6), equipped with a Display Audio 2.0 head unit, which may exhibit a wireless CarPlay connectivity issue with Apple phones running iOS14 software version.
TSB_ELE200_CLSD2021-01-06. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). TSB_ELE200_CLOSED: Technical Service Bulletin superseded by SC199_TSB
PS656_R12020-12-02. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: REAR OCCUPANT ALERT (ROA) WITH ULTRASONIC OPERATION - 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 ultrasonic sensor feature designed to alert the driver, in the event that a rear passenger is remaining inside the vehicle.
PS653_R22020-12-01. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. PITSTOP: VEHICLE AUTO-SHUT OFF SYSTEM - 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. Some 2021MY Seltos (SP2), K5 (DL3A) and Sorento (MQ4a, MQ4 KH) models are equipped with a new Auto-Shut Off feature, which automatically shuts off the engine after a set time period. This feature will help reduce fuel consumption and prevent carbon monoxide (CO) poisoning.
PS654_R12020-11-03. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; ELECTRICAL SYSTEM. PITSTOP: DOOR SPEAKER DIAGNOSTIC 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 Pitstop provides diagnostic information to guide in diagnosis of suspected defective door speakers on some Kia vehicles.

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