Cadillac CTS 2004–2005 — technical service bulletin
Bulletin 050601013 · NHTSA communication 10017386 · issued Aug 1, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2005
model years
5
vehicle entries
Official summary
Whine, whistle, ringing type noise heard from front of engine. *tt
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.