Cadillac Lyriq 2023–2026 — technical service bulletin
Bulletin PIC6652 · NHTSA communication 11032956 · issued May 21, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2023–2026
model years
4
vehicle entries
Official summary
This PI Communicates that a grind noise maybe heard if the spring plate is not transferred to the new sunroof/shade motor.
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.