• Fixes to help ensure start reliability and prevent battery drain • Improved charging performance and...
Cadillac technical service bulletin 663.50 for 2027 Cadillac Lyriq.
- Bulletin number
- 663.50 (Driving & Connectivity 2026.3)
- Component
- Unknown or other
- Summary
- • Fixes to help ensure start reliability and prevent battery drain • Improved charging performance and messages • More control over the head-up display position, with image layers now moving together • Quicker, smoother head-up display brightness adjustments as outside lighting changes • Improved head-up display reliability to help prevent blank displays
Vehicles covered
- Cadillac Lyriq 2027 2027
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