Chevrolet Trailblazer 2004–2009 — technical service bulletin
Bulletin PIP3694F · NHTSA communication 10057670 · issued Mar 1, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2009
model years
7
vehicle entries
Official summary
General motors 2004-2012 chevrolet trail blazer , chevrolet colorado, gmc envoy , gmc canyon, hummer h3. Bulletin regarding belt noise of engine, rough idle. *lj
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.