Cadillac Lyriq 2023 — technical service bulletin
Bulletin N25-250020 · NHTSA communication 11018718 · issued May 19, 2025
Technical service bulletin
communication type
Unknown / Other
component
2023
model years
1
vehicle entries
Official summary
•Improves how center display adjusts to lighting changes. •Improved warnings when a key is missing. •Better tuning for interior lighting in Stealth mode. •Improvements to automatic low beam headlamp logic. •Smoother dimming and transitions from day to night. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.