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Over-the-air update 663.10

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 id11037758
Published by NHTSA2026-10-02
Manufacturer's number663.10
Manufacturer's date2026-09-24
Campaign id or software version663.10
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemELM: ELM (Exterior Lighting Module)

NHTSA's summary

• More accurate detection of rear turn signal outages

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 CORVETTE2023

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