Chevrolet Colorado 2004–2005 — technical service bulletin
Bulletin 3529 · NHTSA communication 10017250 · issued Nov 2, 2005
Technical service bulletin
communication type
Electrical System
component
2004–2005
model years
4
vehicle entries
Official summary
Unwanted hazard lights on , ipc inoperative., door locks inoperative. No start, battery dead. *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.