Chevrolet Blazer 1996–2004 — technical service bulletin
Bulletin 3176A · NHTSA communication 10010270 · issued Jan 1, 2004
Technical service bulletin
communication type
Equipment
component
1996–2004
model years
48
vehicle entries
Official summary
Heat coming from vents with hvac off. *tt
Vehicles covered
- 1996 Chevrolet Blazer
- 1997 Chevrolet Blazer
- 1998 Chevrolet Blazer
- 1999 Chevrolet Blazer
- 2000 Chevrolet Blazer
- 2001 Chevrolet Blazer
- 2002 Chevrolet Blazer
- 2003 Chevrolet Blazer
- 2004 Chevrolet Blazer
- 1996 Chevrolet S10
- 1997 Chevrolet S10
- 1998 Chevrolet S10
- 1999 Chevrolet S10
- 2000 Chevrolet S10
- 2001 Chevrolet S10
- 2002 Chevrolet S10
- 2003 Chevrolet S10
- 2004 Chevrolet S10
- 1996 GMC Envoy
- 1997 GMC Envoy
- 1998 GMC Envoy
- 1999 GMC Envoy
- 2000 GMC Envoy
- 2001 GMC Envoy
- 1996 GMC Jimmy
- 1997 GMC Jimmy
- 1998 GMC Jimmy
- 1999 GMC Jimmy
- 2000 GMC Jimmy
- 2001 GMC Jimmy
- 2002 GMC Jimmy
- 2003 GMC Jimmy
- 2004 GMC Jimmy
- 1996 GMC Sonoma
- 1997 GMC Sonoma
- 1998 GMC Sonoma
- 1999 GMC Sonoma
- 2000 GMC Sonoma
- 2001 GMC Sonoma
- 2002 GMC Sonoma
- 2003 GMC Sonoma
- 2004 GMC Sonoma
- 1996 Oldsmobile Bravada
- 1997 Oldsmobile Bravada
- 1998 Oldsmobile Bravada
- 1999 Oldsmobile Bravada
- 2000 Oldsmobile Bravada
- 2001 Oldsmobile Bravada
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.