Over-the-air update 661.30
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 | 11030541 |
| Published by NHTSA | 2026-04-02 |
| Manufacturer's number | 661.30 |
| Manufacturer's date | 2026-03-21 |
| Campaign id or software version | 661.30 |
| NHTSA component | UNKNOWN OR OTHER |
| Manufacturer's system | BCM, LRR, SRR, SBZA: BCM (Body Control Module), LRR (Long Range Radar), SRR (Short Range Radar), SBZA (Side Blind Zone Alert) |
NHTSA's summary
• Improvements to the performance of driver assistance features • Fixes to help ensure accurate driver display messages and alerts • Improvements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking • Fixes to help ensure proper functionality of Forward Collision Alert and availability of driver assistance features • Fixes to help ensure proper functionality for heating and cooling features • Improvements to night mode lights for shifting gears • Fixes for Daytime Running Lamps turning on when set to Off • Fixes to help prevent erroneous missing key messages on driver display • Fixes for accuracy of low tire pressure alert • Fixes for speed threshold for pedestrian alerts
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 SILVERADO EV | 2024 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| GMC SIERRA EV | 2024 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.