Chevrolet Colorado 2004–2006 — technical service bulletin
Bulletin 3071 · NHTSA communication 10009620 · issued Oct 13, 2004
Technical service bulletin
communication type
Power Train
component
2004–2006
model years
6
vehicle entries
Official summary
Fluid leak between transfer case and transmission adapter. *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.