Over-the-air update 661.21
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 | 11030536 |
| Published by NHTSA | 2026-04-02 |
| Manufacturer's number | 661.21 |
| Manufacturer's date | 2026-04-02 |
| Campaign id or software version | 661.21 |
| NHTSA component | UNKNOWN OR OTHER |
| Manufacturer's system | VCU: VCU (Virtual Cockpit Unit) |
NHTSA's summary
Improvements to Apple CarPlay performance.
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.
| CHEVROLET COLORADO | 2024 |
|---|---|
| GMC CANYON | 2024 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.