• Improvements to audio system performance
Chevrolet technical service bulletin 654.20 for 2024, 2026 Chevrolet Silverado 1500, 2024, 2026 GMC Sierra 1500 and 2024, 2026 Chevrolet Silverado 2500 and others.
- Bulletin number
- 654.20 (654.20)
- Component
- Unknown or other
- Summary
- • Improvements to audio system performance. • Fixes to help ensure proper functionality for the center display. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Vehicles covered
- Chevrolet Silverado 1500 2024, 2026 20242026
- GMC Sierra 1500 2024, 2026 20242026
- Chevrolet Silverado 2500 2024, 2026 20242026
- GMC Sierra 2500 2024, 2026 20242026
VIN decoder
See the problems and recalls for an exact car
Buying a used Chevrolet Silverado 1500?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history