Over-the-air update 661.10
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 | 11031763 |
| Published by NHTSA | 2026-04-30 |
| Manufacturer's number | 661.10 |
| Manufacturer's date | 2026-04-27 |
| Campaign id or software version | 661.10 |
| NHTSA component | UNKNOWN OR OTHER |
| Manufacturer's system | VCU: VCU (Virtual Cockpit Unit) |
NHTSA's summary
• Fixes to help ensure responsiveness for the driver display and rear view camera. Improvements to reliability for alerts and chimes.
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.
| CADILLAC CT4 | 2025 |
|---|---|
| CADILLAC CT5 | 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.