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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 id11034071
Published by NHTSA2026-06-26
Manufacturer's number662.30
Manufacturer's date2026-06-24
Campaign id or software version662.30
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemAOS, BCM, ELM, FCM, ICS, ICCM, PDR, TCM, TPIM, WCM: AOS (Automatic Occupant Sensing Module), BCM (Body Control Module), ELM (Exterior Lighting Module), FCM (Front Camera Module), ICS_Info (Integrated Center Stack), ICCM (Integrated Chassis Control Module), PDR (Performance Data Recorder), TCM (Transmission Control Module), TPIM (Traction Power Inverter Module), WCM (Wireless Charger Module)

NHTSA's summary

• Fixes to help ensure successful vehicle software updates. • The active cabin ventilation feature will operate more reliably. • Additional protection for the health of your battery and updates to help prevent excessive battery drain and overheating. • Improvements to provide more accurate speed limit detection on the driver’s display. • Improvements to the availability of driver assistance features and fewer notifications or warnings. • Fixes to help ensure driver assistance features remain functional when the windshield freezes. • Fixes to help prevent loss of Performance Data Recorder functionality and to protect battery health. • The Transmission Fluid Life gauge will reset properly and show a more accurate reading. • The eAWD indicator will activate less frequently during normal driving conditions. • Fixes a known iPhone 15 charging issue that affects some devices

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 CORVETTE2025
CHEVROLET CORVETTE E-RAY2025 (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.