Cadillac Lyriq 2023 — technical service bulletin
Bulletin PIC6488E · NHTSA communication 10242313 · issued Aug 29, 2023
Technical service bulletin
communication type
Equipment
component
2023
model years
3
vehicle entries
Official summary
This Preliminary information communicates that Serial Data Authentication is required prior to programming a replacement Radio and required sequence of programming for replacement and existing radios.
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.