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October 7, 2026 Over-the-air update

• Improves traction and stability control when accelerating or on uneven terrain • Improves braking and...

Chevrolet technical service bulletin 663.20 for 2025 Chevrolet Corvette and 2025 Chevrolet Corvette E-Ray.

Bulletin number
663.20 (Driving & Connectivity 2026.3)
Component
Unknown or other
Summary
• Improves traction and stability control when accelerating or on uneven terrain • Improves braking and stopping performance on low-traction surfaces • Improves the performance of assisted braking • Improved acceleration when transitioning out of Stealth Mode • Improvements to Auto Park Assist performance.

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