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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeOver-the-air update
NHTSA id11034082
Published by NHTSA2026-06-26
Manufacturer's number661.30
Manufacturer's date2026-06-18
Campaign id or software version661.30
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemEBCM, BCM, LRR: EBCM (Electronic Brake Control Module), BCM (Body Control Module), LRR (Long Range Radar)

NHTSA's summary

• 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 • Fixes to Forward Collision Alert and driver assistance features • Improvements to traction and stability control on uneven terrain • Improvements to braking performance on low-traction surfaces • Improvements to assisted braking

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 EQUINOX2025
GMC TERRAIN2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.