This update contains a required software change to help improve the overall software update and...
Chevrolet technical service bulletin 662.21 for 2026 Chevrolet Colorado and 2026 GMC Canyon.
- Bulletin number
- 662.21 (662.21)
- Component
- Unknown or other
- Summary
- This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior.
Vehicles covered
- Chevrolet Colorado 2026 2026
- GMC Canyon 2026 2026
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