Buick Park Avenue 2003 — technical service bulletin
Bulletin 020730036 · NHTSA communication 10000181 · issued Oct 1, 2002
Technical service bulletin
communication type
Power Train
component
2003
model years
9
vehicle entries
Official summary
New input and third pawl clutch assembly changes for the 4t65-e transmission for 2003 model year. *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.