Chevrolet Colorado 2012 — technical service bulletin
Bulletin PIP-5009-D · NHTSA communication 10044391 · issued May 1, 2012
Technical service bulletin
communication type
Power Train
component
2012
model years
8
vehicle entries
Official summary
Gmc/chevrolet: malfunction indicator lamp (mil) is illuminated and has a harsh shift 1-2. The tcc enable solenoid and wire harness should be replaced when repairs are performed on transmission. *pe
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.