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Over-the-air update 662.20

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 id11034058
Published by NHTSA2026-06-25
Manufacturer's number662.20
Manufacturer's date2026-06-16
Campaign id or software version662.20
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemVCU: VCU (Virtual Cockpit Unit)

NHTSA's summary

• Improvements to system responsiveness • Improvements to camera image clarity • Fixes to prevent blank screens and audio drop-outs • Improvements to vehicle software update installation

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
BUICK ENVISION2026

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