Chevrolet C Series 1998 — technical service bulletin
Bulletin 877169 · NHTSA communication 615080 · issued Jul 1, 1998
Technical service bulletin
communication type
Power Train
component
1998
model years
15
vehicle entries
Official summary
Information pertaining to new transmission calibrations. *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.