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 | 11032969 |
| Published by NHTSA | 2026-05-28 |
| Manufacturer's number | 661.10 |
| Manufacturer's date | 2026-05-27 |
| Campaign id or software version | 661.10 |
| NHTSA component | UNKNOWN OR OTHER |
| Manufacturer's system | BCM, EBCM: BCM (Body Control Module), EBCM (Electronic Brake Control Module) |
NHTSA's summary
• Improvements to traction and stability control on uneven terrain • Improvements to braking performance on low-traction surfaces • Improvements to assisted braking • Improvements to active cabin ventilation • Additional protection for the health of your battery • Updates to help prevent excessive battery drain and overheating • Improvements to the software update system
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 | 2026 |
|---|---|
| CADILLAC CT5 | 2026 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.