TSB CHA128 — Kia Service bulletin
CHA128 is a service bulletin on file with NHTSA for the Kia Telluride, 2020–2022 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. TECHNICAL SERVICE BULLETIN: 4WD COUPLING NOISE/VIBRATION LOGIC IMPROVEMENT) - CLOSED & SUPERSEDED BY CHA129 - This bulletin is now closed and superseded by CHA129.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…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years CHA128 names
| Vehicle | Model years |
|---|---|
| Kia Telluride | 2020, 2021, 2022 |
Every document filed under CHA128
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| TSB_CHA128_CLSD | May 23, 2026 | Service bulletin |
| TSB_CHA128 | April 30, 2025 | Service bulletin |
What CHA128 covers
Transmission & drivetrain — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB CHA128?
CHA128 is a service bulletin filed with NHTSA by Kia, covering the Kia Telluride across the 2020–2022 model years. NHTSA's summary reads: TECHNICAL SERVICE BULLETIN: 4WD COUPLING NOISE/VIBRATION LOGIC IMPROVEMENT) - CLOSED & SUPERSEDED BY CHA129 - This bulletin is now closed and superseded by CHA129.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…
Which vehicles does CHA128 cover?
NHTSA's file names Kia Telluride (2020–2022). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB CHA128 a recall, and is the repair free?
No. CHA128 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of CHA128?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under CHA128, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under CHA128. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.