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Over-the-air update 662.30

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeOver-the-air update
NHTSA id11036494
Published by NHTSA2026-08-31
Manufacturer's number662.30
Manufacturer's date2026-08-24
Campaign id or software versionAssisted Driving & Cabin 2026.2
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemBCM, EBCM, ACP, LRR, SBZA, SRR, TPIM, VICM, WCM: BCM (Body Control Module), EBCM (Electronic Brake Control Module), ACP2 (ADAS Compute Platform 2), LRR (Long Range Radar), SBZA (Side Blind Zone Alert), SRR (Short Range Radar), TPIM (Traction Power Inverter Module), VICM (Vehicle Integration Control Module), WCM (Wireless Charger Module)

NHTSA's summary

• Improvements to active cabin ventilation • Additional protection for the health of your battery • Improvements to the software update system • Improves traction and stability control when accelerating or on uneven terrain • Improves braking and stopping performance on low-traction surfaces • 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 accurate driver display messages and alerts. • Improved vehicle performance when driving in Reverse on slippery surfaces • Better One-Pedal Driving performance • Additional protection for battery health and prevention for battery drain • Better performance and reliability of wireless phone charging

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.