Check a VIN

January 16, 2026 Over-the-air update

• Fixes to help ensure successful vehicle software updates

Cadillac technical service bulletin 654.20 for 2023 Cadillac Lyriq.

Bulletin number
654.20 (654.20)
Component
Unknown or other
Summary
• Fixes to help ensure successful vehicle software updates. • Improvements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking. • Fixes to help ensure proper functionality of Forward Collision Alert and availability of driver assistance features. • Improvements to the performance of electric vehicle sound enhancement. • Fixes to help prevent loss of functionality for Dolby Atmos. • Fixes to ensure proper audio options display in menu. • Fixes to help ensure proper traction control activation.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Cadillac Lyriq?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history