Chevrolet Avalanche 2003–2006 — technical service bulletin
Bulletin 3766 · NHTSA communication 10018566 · issued Jan 6, 2006
Technical service bulletin
communication type
Visibility
component
2003–2006
model years
26
vehicle entries
Official summary
Front blower inoperative stay running during low ambient temperature. *tt
Vehicles covered
- 2004 Chevrolet Avalanche
- 2005 Chevrolet Avalanche
- 2006 Chevrolet Avalanche
- 2004 Chevrolet Silverado
- 2005 Chevrolet Silverado
- 2006 Chevrolet Silverado
- 2004 Chevrolet Suburban
- 2005 Chevrolet Suburban
- 2006 Chevrolet Suburban
- 2004 Chevrolet Tahoe
- 2005 Chevrolet Tahoe
- 2006 Chevrolet Tahoe
- 2003 Chevrolet Trailblazer
- 2004 Chevrolet Trailblazer
- 2005 Chevrolet Trailblazer
- 2006 Chevrolet Trailblazer
- 2003 GMC Envoy
- 2004 GMC Envoy
- 2005 GMC Envoy
- 2006 GMC Envoy
- 2004 GMC Sierra
- 2005 GMC Sierra
- 2006 GMC Sierra
- 2004 GMC Yukon
- 2005 GMC Yukon
- 2006 GMC Yukon
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.