Cadillac Deville 2000–2004 — technical service bulletin
Bulletin 020604024D · NHTSA communication 634719 · issued Jan 1, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2000–2004
model years
14
vehicle entries
Official summary
Service engine soon or check engine soon malfunction indicator lamp being illuminated. *tt 02-06-04-024e not yet received. *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.