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Service bulletin TSB_ELE229_R4

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)
TypeService bulletin
NHTSA id10239754
Published by NHTSA2023-08-02
Manufacturer's numberTSB_ELE229_R4
Manufacturer's date2023-07-13
NHTSA componentELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

NHTSA's summary

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.

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

Electrical system, Equipment and accessories, Software

Vehicles listed
KIA K52021
KIA SORENTO2021
KIA SORENTO HYBRID2021 (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.

Other bulletins for the same vehicles and component
TSB_ELE200_CLSD2021-01-06. Service bulletin. TSB_ELE200_CLOSED: Technical Service Bulletin superseded by SC199_TSB
PS653_R22020-12-01. Service bulletin. 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.
TSB_ELE2062020-09-03. Service bulletin. TECHNICAL SERVICE BULLETIN SERVICE ACTION: AVN 5-WIDE NAVIGATION MAP PACKAGE SOFTWARE UPDATE (SA433) - This bulletin provides information to inspect and if necessary update the navigation software on some 2021 K5 (DL3a) vehicles produced from March 27, 2020 through August 3, 2020, equipped with AVN 5-Wide head units, which may exhibit a distorted image display when navigation goes into the split screen mode (displaying upcoming change in route to a set destination) due to corrupted software file(s).