Cadillac Lyriq 2023 — technical service bulletin
Bulletin N222378271-01 · NHTSA communication 10229703 · issued Jan 13, 2023
Technical service bulletin
communication type
Exterior Lighting
component
2023
model years
1
vehicle entries
Official summary
Certain vehicles may have multiple software issues such as no audio, flashing cornering lamps, or lighting concerns. Dealers will confirm the over-the-air updates are installed. Various modules will be manually updated by the dealer with the latest software.
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.