Cadillac Lyriq 2023–2024 — technical service bulletin
Bulletin PIC6529 · NHTSA communication 10247358 · issued Nov 15, 2023
Technical service bulletin
communication type
Structure
component
2023–2024
model years
3
vehicle entries
Official summary
This Preliminary information communicates to the technician how to address Hvac Temperature door issues and associated Service vehicle soon light. Summary: if concern is still present after loosening actuator and relearning then Hvac case replacement may be needed.
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.