Cadillac Lyriq 2025 — technical service bulletin
Bulletin PIC6619 · NHTSA communication 11023141 · issued Sep 8, 2025
Technical service bulletin
communication type
Unknown / Other
component
2025
model years
1
vehicle entries
Official summary
This Preliminary information communicates how to repair HVAC case leak
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.