Buick Century 2003 — technical service bulletin
Bulletin 020730039C · NHTSA communication 10002840 · issued Jun 1, 2003
Technical service bulletin
communication type
Power Train
component
2003
model years
21
vehicle entries
Official summary
Firm transmission shifts, shudder/chuggle, transmission won't downshift on deceleration, service engine soon light illuminated, diagnostic trouble code p0742 set. *tt
Vehicles covered
- 2003 Buick Century
- 2003 Buick Lesabre
- 2003 Buick Park Avenue
- 2003 Buick Regal
- 2003 Buick Rendezvous
- 2003 Cadillac Deville
- 2003 Cadillac Seville
- 2003 Chevrolet Cavalier
- 2003 Chevrolet Impala
- 2003 Chevrolet Malibu
- 2003 Chevrolet Monte Carlo
- 2003 Chevrolet Venture
- 2003 Oldsmobile Alero
- 2003 Oldsmobile Aurora
- 2003 Oldsmobile Silhouette
- 2003 Pontiac Aztek
- 2003 Pontiac Bonneville
- 2003 Pontiac Grand AM
- 2003 Pontiac Grand Prix
- 2003 Pontiac Montana
- 2003 Pontiac Sunfire
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.