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Service bulletin TSB_ENG232

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 id10205498
Published by NHTSA2021-12-23
Manufacturer's numberTSB_ENG232
Manufacturer's date2021-12-07
NHTSA componentPOWER TRAIN; ENGINE AND ENGINE COOLING

NHTSA's summary

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: ACCELERATION LOGIC IMPROVEMENT (ECU & TCU) (SA490) - This bulletin provides the procedure to update the software logic of the Engine Control Unit (ECU) and Transmission Control Unit (TCU) on some 2022MY Sorento (MQ4a) vehicles produced from August 11, 2021 through November 29, 2021 and Telluride (ON) vehicles produced from June 8, 2021 through November 4, 2021, which may exhibit rough shift and hesitation during acceleration.

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

Engine, Transmission and driveline

Vehicles listed
KIA SORENTO2022
KIA TELLURIDE2022

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

Recalls for the same vehicles and component
20241872024-03-22. Powertrain
24V2140002024-03-20. POWER TRAIN:DRIVELINE:DRIVESHAFT
20225802022-10-12. Powertrain
22V7600002022-10-11. POWER TRAIN:AUTOMATIC TRANSMISSION
22V2020002022-03-29. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PIPES, HOSES, AND FITTINGS

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_ENG2702026-09-30. Service bulletin. TECHNICAL SERVICE BULLETIN: EXCESSIVE ENGINE OIL CONSUMPTION: This bulletin provides information on diagnosing and/or repairing a 2020-2025MY Telluride (ON) vehicle's engine, which may exhibit a symptom of excessive oil consumption. Follow the flowchart on page 2 in this procedure to repair a vehicle exhibiting excessive oil consumption.
TSB_CHA129_R12026-09-30. Service bulletin. TECHNICAL SERVICE BULLETIN: AWD COUPLER NOISE/VIBRATION LOGIC IMPROVEMENT (Revision 1) - 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 upgrade the 4-Wheel Drive ‘4WD’ system software on some 2020-2025MY Telluride (ON) vehicles produced from January 08, 2019 through December 17, 2025. The affected vehicles may exhibit a noise and/or a vibration, shudder, jerking, binding, or chattering sensation while turning at low speeds (10MPH – 15MPH). This concern may be caused by decreased oil friction within AWD coupling due to continuous vehicle operation in harsh conditions (high/low ambient temperatures, extended duration/distance driving).
WTY045_TSB2026-06-18. Warranty extension. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: OIL FILTER HOUSING GASKET REPLACEMENT (WTY045) - This bulletin provides information regarding the ‘Warranty Extension Program (WTY045)’ for the inspection and, if necessary, replacement of the oil filter housing gasket on certain 2020–2025 MY Telluride (ON) vehicles produced from January 9, 2019, through June 12, 2025. Under this program, the New Vehicle Warranty coverage for this condition is extended from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever occurs first, starting from the date the vehicle was first put into service. Affected vehicles may develop an engine oil leak from the oil filter housing gasket. During the extended warranty period, inspect and, if necessary, replace the oil filter housing gasket at no cost to the customer.
TSB_CHA128_CLSD2026-05-23. Service bulletin. TECHNICAL SERVICE BULLETIN: 4WD COUPLING NOISE/VIBRATION LOGIC IMPROVEMENT) - CLOSED & SUPERSEDED BY CHA129 - This bulletin is now closed and superseded by CHA129. This bulletin provides information to upgrade the 4-Wheel Drive ‘4WD’ system software on certain 2020-2022MY Telluride (ON) vehicles produced from January 09, 2019 through September 01, 2022. The affected vehicles may exhibit a noise and/or a vibration, shudder, jerking, binding, or chattering while turning at low speeds (10MPH – 15MPH) located from the 4WD coupling caused by a decrease in the oil friction of the 4WD coupling due to continuous vehicle operation in harsh conditions (high/low ambient temperatures, long time/distance traveling).
TSB_CHA1292026-05-23. Service bulletin. TECHNICAL SERVICE BULLETIN: AWD COUPLER NOISE/VIBRATION LOGIC IMPROVEMENT - This bulletin provides information to upgrade the 4-Wheel Drive ‘4WD’ system software on some 2020-2025MY Telluride (ON) vehicles produced from January 08, 2019 through December 17, 2025. The affected vehicles may exhibit a noise and/or a vibration, shudder, jerking, binding, or chattering sensation while turning at low speeds (10MPH – 15MPH). This concern may be caused by decreased oil friction within AWD coupling due to continuous vehicle operation in harsh conditions (high/low ambient temperatures, extended duration / distance driving).
WTY045_REIMB2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: REIMBURSEMENT FORM (WTY045) - This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the warranty extension campaign program launch.
WTY045_OWNR2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION (WTY045) - This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for certain repairs related to an engine oil leak from the oil filter housing gasket in certain 2020-2025 MY Telluride vehicles from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the oil filter housing gasket leaking condition at no cost to you during this extended warranty period.
WTY045_DPSM2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (WTY045) - This document is the announcement to the dealer Parts and Service managers advising that Kia is extending the New Vehicle Limited Warranty coverage to all owners for certain repairs related to an engine oil leak from the oil filter housing gasket in certain 2020-2025 MY Telluride vehicles manufactured from January 9, 2019 through June 12, 2025, from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the oil filter housing gasket leaking condition.
WTY045_DP2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: DEALER PRINCIPAL MEMO (WTY045) - This document is the announcement to the dealer principals advising that Kia is extending the New Vehicle Limited Warranty coverage to all owners for certain repairs related to an engine oil leak from the oil filter housing gasket in certain 2020-2025 MY Telluride vehicles manufactured from January 9, 2019 through June 12, 2025, from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the oil filter housing gasket leaking condition.
WTY045_QA2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: QUESTION AND ANSWER (WTY045) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY045.