TSB N252517721 — Buick, Chevrolet and GMC Service campaign
N252517721 is a service campaign on file with NHTSA for 3 Buick, Chevrolet and GMC models, 2026 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. Service Update. Certain vehicles listed above may not have had the production released software at launch. Dealers will reprogram the radio.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. N252517721 is filed as a service campaign, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years N252517721 names
| Vehicle | Model years |
|---|---|
| Buick Enclave | 2026 |
| Chevrolet Traverse | 2026 |
| GMC Acadia | 2026 |
Every document filed under N252517721
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 |
|---|---|---|
| N252517721 | August 6, 2025 | Service campaign |
| N252517721 | July 31, 2025 | Service campaign |
Questions buyers ask
What is TSB N252517721?
N252517721 is a service campaign filed with NHTSA by Buick, Chevrolet and GMC, covering 3 Buick, Chevrolet and GMC models across the 2026 model years. NHTSA's summary reads: Service Update. Certain vehicles listed above may not have had the production released software at launch. Dealers will reprogram the radio.
Which vehicles does N252517721 cover?
NHTSA's file names Buick Enclave (2026); Chevrolet Traverse (2026); GMC Acadia (2026). 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 N252517721 a recall, and is the repair free?
N252517721 is filed as a service campaign, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of N252517721?
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 N252517721, 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 N252517721. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.