Cadillac CTS 2004–2005 — technical service bulletin
Bulletin 3640 · NHTSA communication 10018536 · issued Jan 6, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2005
model years
6
vehicle entries
Official summary
3.6 ly7 misfire dtc p0300 p0301 p0302 p0303 p0304 p0305 p0306. *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.