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Over-the-air update 654.20

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeOver-the-air update
NHTSA id11028980
Published by NHTSA2026-02-24
Manufacturer's number654.20
Manufacturer's date2026-02-19
Campaign id or software version654.20
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemLRR, SRR, SBZA: LRR (Long Range Radar), SRR (Short Range Radar), SBZA (Side Blind Zone Alert)

NHTSA's summary

• 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. • Improvements to the performance of driver assistance features. • Fixes to help ensure accurate driver display messages and 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.

Vehicles listed
CHEVROLET BLAZER EV2026 (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.