Cadillac CTS 2004–2005 — technical service bulletin
Bulletin 3127 · NHTSA communication 10009967 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2005
model years
3
vehicle entries
Official summary
ENGINE WHINE NOISE. TC
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.