Ford Thunderbird 2003 — technical service bulletin
Bulletin 03158 · NHTSA communication 10003188 · issued Aug 4, 2003
Technical service bulletin
communication type
Power Train
component
2003
model years
2
vehicle entries
Official summary
Vehicles built between 11/18/2002 and 05/17/2003 with the 5r55s transmission may exhibit harsh shifts. *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.