Cadillac CTS 2003–2004 — technical service bulletin
Bulletin 01888 · NHTSA communication 10006519 · issued Jan 1, 2004
Technical service bulletin
communication type
Steering
component
2003–2004
model years
3
vehicle entries
Official summary
Steering wheel controls for onstar functionality incorrect after radio replacement. *mr
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.