Cadillac Lyriq 2023–2024 — technical service bulletin
Bulletin PIT5878E · NHTSA communication 10240780 · issued Jul 11, 2023
Technical service bulletin
communication type
Visibility
component
2023–2024
model years
2
vehicle entries
Official summary
This Preliminary information communicates to the field engineering contacts to assist in the diagnosis of HVAC concerns on the new 2023-2024 LYRIQ.
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.