TSB 662.12 — Buick, Chevrolet and GMC Software update
662.12 is a software update on file with NHTSA for 3 Buick, Chevrolet and GMC models, 2024 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. • Improvements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking. • Fixes to help ensure proper functionality of Forward Collision Alert and availability of driver assistance features.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. 662.12 is filed as a software update, 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 662.12 names
| Vehicle | Model years |
|---|---|
| Buick Enclave | 2024 |
| Chevrolet Traverse | 2024 |
| GMC Acadia | 2024 |
Every document filed under 662.12
| Document ID | Filed | Type |
|---|---|---|
| 662.12 | July 14, 2026 | Software update |
Questions buyers ask
What is TSB 662.12?
662.12 is a software update filed with NHTSA by Buick, Chevrolet and GMC, covering 3 Buick, Chevrolet and GMC models across the 2024 model years. NHTSA's summary reads: • Improvements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking. • Fixes to help ensure proper functionality of Forward Collision Alert and availability of driver assistance features.
Which vehicles does 662.12 cover?
NHTSA's file names Buick Enclave (2024); Chevrolet Traverse (2024); GMC Acadia (2024). 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 662.12 a recall, and is the repair free?
662.12 is filed as a software update, 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 662.12?
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 662.12, 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 662.12. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.