Service bulletin PS681

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10183324
Published by NHTSA	2020-12-02
Manufacturer's number	PS681
Manufacturer's date	2020-11-20
NHTSA component	EQUIPMENT ADAPTIVE/MOBILITY; WHEELS

NHTSA's summary

PITSTOP: SORENTO (MQ4A) ALIGNMENT SPECIFICATIONS - This Pitstop provides information regarding alignment specifications for 2021MY Sorento (MQ4a) and Sorento Hybrid (MQ4 KH) vehicles.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Wheels

Vehicles listed
KIA SORENTO	2021
KIA SORENTO HYBRID	2021 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
2022531	2022-09-20. Accessories

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB_ELE320	2024-01-06. Service bulletin. 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.
CS2304_TSB_R6	2023-11-03. Service bulletin. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - 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 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 2011-2015MY Sorento (XMa), 2016-2020MY Sorento (UMa), and 2021-2022MY 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 which activates when the vehicle is locked.
TSB_ELE303_R1	2023-10-01. Service bulletin. 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_ELE229_R4	2023-08-02. Service bulletin. 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_ELE282	2023-04-22. Service bulletin. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: MQ4 HEV LEAFLET AND RESERVOIR CAP LABEL REPLACEMENT(SA524) - This bulletin provides information to replace the hybrid motor coolant reservoir cap label and provide a leaflet on some 2021-2022MY Sorento HEV (MQ4 HEV) vehicles produced from September 17, 2021 through January 10, 2022. Follow the procedure outlined in this publication to provide a leaflet in the glovebox and replace the hybrid motor coolant reservoir cap label.
TSB_ELE281	2023-04-22. Service bulletin. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: MQ4 HEV RESERVOIR CAP LABEL REPLACEMENT (SA523) - This bulletin provides information to replace the hybrid motor coolant reservoir cap label on some 2021MY - 2022MY Sorento (MQ4 HEV) vehicles produced from January 11, 2022 through May 19, 2022.
TSB_TRA100	2022-02-04. Service bulletin. TECHNICAL SERVICE BULLETIN: 8 SPEED WET DUAL CLUTCH TRANSMISSION (WDCT) JUDDER EVALUATION - This bulletin provides information to inspect for judder in the 8-speed Wet Dual Clutch Transmission (WDCT) and possibly replace the Dual Clutch Assembly on some 2021MY~ K5 GT (DL3a) vehicles produced from November 16, 2020 and later and Sorento EX trim and above (MQ4a) non-hybrid vehicles, produced from October 26, 2020 and later, which may exhibit clutch judder. If the vehicle body vibrates without the steering wheel shuddering when performing the creep driving test (driving the vehicle up to 3mph), the vehicle is exhibiting clutch judder. The creep test can be conducted by driving at a speed slower than 5 mph after releasing the brake.
PS576_R2	2022-02-04. Service bulletin. PITSTOP: BATTERY DEALER (SHIPPING)/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 (Shipping) / Customer Mode Switch setting on all applicable models.
TSB_ENG222_R4	2021-12-23. Service bulletin. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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 diagnosing and/or repairing some 2011-2021MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
TSB_ENG225	2021-02-02. Service bulletin. 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.