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July 16, 2026 Over-the-air update

• Fixes to help ensure successful vehicle software updates

Chevrolet technical service bulletin 662.20 for 2024 Chevrolet Corvette and 2024 Chevrolet Corvette E-Ray.

Bulletin number
662.20 (662.20)
Component
Unknown or other
Summary
• Fixes to help ensure successful vehicle software updates. • Improves how center display adjusts to lighting changes. • Improved warnings when a key is missing. • Better tuning for interior lighting in Stealth mode. Improvements to automatic low beam headlamp logic. • Smoother dimming and transitions from day to night. • 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

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