Chevrolet C Series 1996–1997 — technical service bulletin
Bulletin 777153 · NHTSA communication 52591 · issued Mar 1, 1997
Technical service bulletin
communication type
Power Train
component
1996–1997
model years
12
vehicle entries
Official summary
Chuggle/surge on tcc apply/no dtc's (reflash the powertrain control module). *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.