Cadillac Lyriq 2023 — technical service bulletin
Bulletin PIC6490 · NHTSA communication 10232784 · issued Feb 1, 2023
Technical service bulletin
communication type
Exterior Lighting
component
2023
model years
1
vehicle entries
Official summary
This Preliminary information communicates to inspect the left front headlamp leveling sensor for being bent if a service Headlamps message or clunk is heard from the left front over bumps.
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.