Cadillac CTS 2003–2004 — technical service bulletin
Bulletin 01831 · NHTSA communication 10006630 · issued Jan 1, 2004
Technical service bulletin
communication type
Power Train
component
2003–2004
model years
4
vehicle entries
Official summary
5l40e, 5l50e automatic transmission revised fluid level checking procedure. *mr
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.