Buick Regal 1993–1995 — technical service bulletin
Bulletin 577104 · NHTSA communication 39299 · issued Feb 1, 1995
Technical service bulletin
communication type
Power Train
component
1993–1995
model years
13
vehicle entries
Official summary
HARSH 1-2 UPSHIFTS. *TW
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.