Chevrolet Trailblazer 2002–2006 — technical service bulletin
Bulletin 3656 · NHTSA communication 10017014 · issued Jul 1, 2012
Technical service bulletin
communication type
Visibility
component
2002–2006
model years
10
vehicle entries
Official summary
Repeat rear blower motor failure or inoperative. *tt updated 12/5/08. *pe updated 08/06/2012 *js
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.