Cadillac Deville 1999–2003 — technical service bulletin
Bulletin 020730031 · NHTSA communication 634945 · issued Aug 1, 2002
Technical service bulletin
communication type
Unknown OR Other
component
1999–2003
model years
18
vehicle entries
Official summary
Information on inspecting the julian date code of torque converter clutch pluse width modulated valve assembly. *tt
Vehicles covered
- 1999 Cadillac Deville
- 2000 Cadillac Deville
- 2001 Cadillac Deville
- 2002 Cadillac Deville
- 2003 Cadillac Deville
- 1999 Cadillac Eldorado
- 2000 Cadillac Eldorado
- 2001 Cadillac Eldorado
- 2002 Cadillac Eldorado
- 1999 Cadillac Seville
- 2000 Cadillac Seville
- 2001 Cadillac Seville
- 2002 Cadillac Seville
- 2003 Cadillac Seville
- 1999 Oldsmobile Aurora
- 2001 Oldsmobile Aurora
- 2002 Oldsmobile Aurora
- 2003 Oldsmobile Aurora
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.