Chevrolet Trailblazer 2002–2004 — technical service bulletin
Bulletin 00877A · NHTSA communication 10007972 · issued Jan 1, 2004
Technical service bulletin
communication type
Seats
component
2002–2004
model years
6
vehicle entries
Official summary
Intermittent lack of heat in 2nd and 3rd row seating positions. *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.