TSB 653.20 — Buick, Chevrolet and GMC Software update
653.20 is a software update on file with NHTSA for 7 Buick, Chevrolet and GMC models, 2025–2026 model years, filed and re-filed as 3 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. GM Update 653.20 •Improvements to Apple CarPlay performance. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. 653.20 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 653.20 names
| Vehicle | Model years |
|---|---|
| Buick Enclave | 2025 |
| Chevrolet Colorado | 2025 |
| Chevrolet Equinox | 2026 |
| Chevrolet Traverse | 2025 |
| GMC Acadia | 2025 |
| GMC Canyon | 2025 |
| GMC Terrain | 2026 |
Every document filed under 653.20
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 |
|---|---|---|
| 653.20 | October 28, 2025 | Software update |
| 653.20 | October 13, 2025 | Software update |
| 653.20 | August 18, 2025 | Software update |
Questions buyers ask
What is TSB 653.20?
653.20 is a software update filed with NHTSA by Buick, Chevrolet and GMC, covering 7 Buick, Chevrolet and GMC models across the 2025–2026 model years. NHTSA's summary reads: GM Update 653.20 •Improvements to Apple CarPlay performance. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Which vehicles does 653.20 cover?
NHTSA's file names Buick Enclave (2025); Chevrolet Colorado (2025); Chevrolet Equinox (2026); Chevrolet Traverse (2025); GMC Acadia (2025); GMC Canyon (2025); GMC Terrain (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 653.20 a recall, and is the repair free?
653.20 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 653.20?
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 653.20, 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 653.20. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.