Cadillac Lyriq 2023 — technical service bulletin
Bulletin PIC6478 · NHTSA communication 10226389 · issued Oct 20, 2022
Technical service bulletin
communication type
Power Train
component
2023
model years
1
vehicle entries
Official summary
This Preliminary information communicates that contact may exist between the pedestrian alert speaker bracket and the beam flange causing a buzz noise.
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.