This update contains a required software change to help improve the overall software update and...
Cadillac technical service bulletin 663.10 for 2025-2026 Cadillac CT5 and 2025-2026 Cadillac CT4.
- Bulletin number
- 663.10 (663.10)
- 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
- Cadillac CT5 2025-2026 20252026
- Cadillac CT4 2025-2026 20252026
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