Cadillac Deville 2000–2002 — technical service bulletin
Bulletin 040730003 · NHTSA communication 10011132 · issued Jan 1, 2004
Technical service bulletin
communication type
Power Train
component
2000–2002
model years
8
vehicle entries
Official summary
Whine/hum noise from automatic transaxle between 20 mph - 50 mph (32 - 80 km/h) with light throttle applications. *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.