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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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Bulletins, newest first
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.
TSB_CHA084_R72021-04-06. Service bulletin. STEERING. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Steering Column Housing, or Worm Gear Assembly. When the steering wheel is rotated a scraping noise can be heard originating from the lower bearing on the Worm Gear Assembly on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
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.
PS6862021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. PITSTOP/TECHNICAL OPERATIONS - SMOKE MACHINE NOT TO BE USED FOR EMISSIONS TESTING WITH HEV/PHEV MODELS - This Pitstop provides information to properly test the evaporative emissions system in all Kia 2011MY~ Hybrid (HEV) and Plug-In Hybrid (PHEV) model vehicles. A smoke machine should NEVER be used when testing the evaporative system in a HEV/PHEV model vehicle.
TSB_ENG216_R22021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC21) - 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.
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_ENG2252021-02-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: CENTER AND REAR MUFFLER INSPECTION AND REPAIR (SA461) - This bulletin provides the procedure to inspect the center muffler on some 2021MY Sorento (MQ4a HEV) vehicles equipped with 1.6L T-GDI engine, produced from September 02, 2020 through December 30, 2020, which may exhibit a poor engine start up due to freezing of condensation in the muffler(s) after parking the vehicle for an extended period of time in cold/freezing temperature. The issue does not affect drivability once the vehicle is started.
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.
SC202_TSB2021-01-06. Service bulletin. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; ENGINE AND ENGINE COOLING. TSB_202 - Technical Service Bulletin - VOLUNTARY SERVICE CAMPAIGN - This bulletin provides the procedure to replace the accelerator pedal assembly on some 2021MY Sorento (MQ4a) vehicles, produced from September 9, 2020 through December 3, 2020. When the shift lever is in the P (Park) position, a potential higher than expected idle RPM condition may occur due to a mispositioned internal component in the pedal assembly. However, if this condition occurs, brake pedal application reduces the RPM to idle. If this condition occurs while driving, application of the brake pedal will activate the vehicle's Smart Pedal logic and reduce the RPM to idle. Replacement of the accelerator pedal assembly will correct this condition.
SC202_OWNR2021-01-06. Service bulletin. ENGINE AND ENGINE COOLING; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES. SC202_OWNR - Notice to owners of a Voluntary Service Campaign to replace the accelerator pedal assembly on some 2021 MY Sorento vehicles, produced from September 9, 2020 through December 3, 2020. When the shift lever is in the P (Park) position, a higher than expected idle RPM condition may occur due to a mispositioned internal component in the pedal assembly. However, if this condition occurs, brake pedal application reduces the RPM to idle. If this condition occurs while driving, application of the brake pedal will activate the vehicle's Smart Pedal logic and reduce the RPM to idle. Replacement of the accelerator pedal assembly will correct this condition.
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
SC202_QA2021-01-06. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. SC202_Questions and Answers - Frequently Asked Questions regarding the Voluntary Service Campaign to replace the accelerator pedal assembly on some 2021 MY Kia Sorento vehicles.
SC202_DSM2021-01-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; ENGINE AND ENGINE COOLING. SC202_DSM - Dealer Service Manager Notice of a Voluntary Service Campaign to replace the accelerator pedal assembly on some 2021 MY Sorento vehicles, produced from September 9, 2020 through December 3, 2020. When the shift lever is in the P (Park) position, a higher than expected idle RPM condition may occur due to a mispositioned internal component in the pedal assembly. However, if this condition occurs, brake pedal application reduces the RPM to idle. If this condition occurs while driving, application of the brake pedal will activate the vehicle's Smart Pedal logic and reduce the RPM to idle. Replacement of the accelerator pedal assembly will correct this condition.
SC202_DP2021-01-06. Service bulletin. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES; ENGINE AND ENGINE COOLING; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. SC202_DP - Dealer Principal Letter - Notice to Dealer Principals of a Voluntary Service Campaign to replace the accelerator pedal assembly on some 2021 MY Sorento vehicles, produced from September 9, 2020 through December 3, 2020. When the shift lever is in the P (Park) position, a higher than expected idle RPM condition may occur due to a mispositioned internal component in the pedal assembly. However, if this condition occurs, brake pedal application reduces the RPM to idle. If this condition occurs while driving, application of the brake pedal will activate the vehicle's Smart Pedal logic and reduce the RPM to idle. Replacement of the accelerator pedal assembly will correct this condition.
PS6812020-12-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; WHEELS. PITSTOP: SORENTO (MQ4A) ALIGNMENT SPECIFICATIONS - This Pitstop provides information regarding alignment specifications for 2021MY Sorento (MQ4a) and Sorento Hybrid (MQ4 KH) vehicles.
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.
PS299_R42020-11-03. Service bulletin. VISIBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER. PITSTOP: CORRECT PROCEDURE FOR RAISING WINDSHIELD WIPERS - 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. When servicing windshield wipers on the below listed vehicles, including during PDI, ensure to raise the wiper arms to a vertical position to avoid damaging the paint on the rear edge of the hood.

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