• Improvements to help protect battery health in low temperatures
Cadillac technical service bulletin 654.20 for 2025-2026 Cadillac Optiq.
- Bulletin number
- 654.20 (654.20)
- Component
- Unknown or other
- Summary
- • Improvements to help protect battery health in low temperatures. • Improvements to diagnostics to reduce service messages. • Fixes to help protect battery health in high temperatures. • Fixes to improve responsiveness for vehicle diagnostics.
Vehicles covered
- Cadillac Optiq 2025-2026 20252026
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