Kia bulletin TSB_CHA127V
What it saysThis bulletin provides information to address vehicles that may be exhibiting a ‘clunking’ noise from the rear suspension while traveling over rough/bumpy terrain on certain 2024-2025MY Sorento (MQ4a) vehicles produced… NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Mar 5, 2025, received Mar 7, 2025, about the suspension. It names 2 model years (2024–2025). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
TECHNICAL SERVICE BULLETIN: REAR SHOCK ABSORBER REPLACEMENT - This bulletin provides information to address vehicles that may be exhibiting a ‘clunking’ noise from the rear suspension while traveling over rough/bumpy terrain on certain 2024-2025MY Sorento (MQ4a) vehicles produced from January 6, 2024 through January 31, 2025. The noise on the affected vehicles may have been caused due to a decrease of gas pressure from within the shock absorber body.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_CHA127V | Service bulletin | Mar 5, 2025 | 11015269 | PDF, 233 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 240A47R0 | — | 0.8 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Kia’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 178 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the suspension
Source: same model, same component group2 other manufacturer communications filed against the Kia Sorento under the same component group (suspension), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB | Service bulletin | Sep 21, 2024 | TECHNICAL SERVICE BULLETIN: FRONT STRUT BEARING & SPRING PAD REPLACEMENT - This bulletin has been revised to include additional information.… |
| PS750 | Service bulletin | Sep 25, 2023 | PITSTOP: AWD SYSTEM CONCERN DUE TO TIRE CIRCUMFERENCE - This Pitstop provides information regarding potential concerns with the All-Wheel-Dr… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Kia, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kia TSB_CHA127V a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the TSB_CHA127V repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does TSB_CHA127V cover?
The manufacturer filed it against 2 model years: 2025 Kia Sorento, 2024 Kia Sorento. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2024-2025MY Sorento (MQ4a): built 6 Jan 2024 – 31 Jan 2025; Sorento (MQ4a): built 6 Jan 2024 – 31 Jan 2025 — the build date is on the certification label in the driver’s door jamb.