Over-the-air update 653.22
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Over-the-air update |
|---|---|
| NHTSA id | 11030519 |
| Published by NHTSA | 2026-04-02 |
| Manufacturer's number | 653.22 |
| Manufacturer's date | 2026-03-14 |
| Campaign id or software version | 653.22 |
| NHTSA component | UNKNOWN OR OTHER |
| Manufacturer's system | PCM: PO2/PCM (Powertrain Control Module) |
NHTSA's summary
• Fixes to help ensure proper functionality for shifting. • Fixes to help protect transmission health. • Improvements to diagnostics to prevent vehicle not starting. • Fixes to help reduce instances of check engine light activation in cold weather.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
| BUICK ENCLAVE | 2024, 2025 |
|---|---|
| CHEVROLET TRAVERSE | 2024, 2025 |
| GMC ACADIA | 2024, 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.