Cadillac Lyriq 2023–2025 — technical service bulletin
Bulletin PIC6537C · NHTSA communication 11018491 · issued May 17, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2023–2025
model years
3
vehicle entries
Official summary
This Preliminary information communicates that a noise or vibration maybe heard from the A/C compressor and that Engineering is working on a resolution.
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.