Chevrolet Trailblazer 2002–2004 — technical service bulletin
Bulletin 02122004 · NHTSA communication 10012992 · issued Feb 12, 2004
Technical service bulletin
communication type
Equipment
component
2002–2004
model years
6
vehicle entries
Official summary
Inadequate hvac for passengers seated in the second and third row. *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.