Cadillac Lyriq 2023 — technical service bulletin
Bulletin PIC6479 · NHTSA communication 10226388 · issued Oct 20, 2022
Technical service bulletin
communication type
Vehicle Speed Control
component
2023
model years
1
vehicle entries
Official summary
This Preliminary information communicates that a shudder can occur with 4 occupants or cargo wiring greater than 300 lbs under heavy acceleration.
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.