Chevrolet C Series 1996 — technical service bulletin
Bulletin 667103A · NHTSA communication 52584 · issued Mar 1, 1997
Technical service bulletin
communication type
Power Train
component
1996
model years
17
vehicle entries
Official summary
Automatic transmission 1-2 and/or 2-3 upshift slip/flare, no 3rd or 4th gear, dtc p1870, launch shudder (revise vcm wiring). *ak
Vehicles covered
- 1996 Chevrolet C Series
- 1996 Chevrolet G Series
- 1996 Chevrolet K Series
- 1996 Chevrolet L Series
- 1996 Chevrolet M Series
- 1996 Chevrolet P3
- 1996 Chevrolet S Series
- 1996 Chevrolet T Series
- 1996 Ford L Series
- 1996 GMC C Series
- 1996 GMC G Series
- 1996 GMC K Series
- 1996 GMC M Series
- 1996 GMC P3
- 1996 GMC S Series
- 1996 GMC T Series
- 1996 Oldsmobile Bravada
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.