Chevrolet Colorado 2004–2005 — technical service bulletin
Bulletin 3407 · NHTSA communication 10013546 · issued Apr 21, 2005
Technical service bulletin
communication type
Equipment
component
2004–2005
model years
4
vehicle entries
Official summary
Engineering investigation of the hvac blower resistor and motor. *tt update. Tt
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.