Chevrolet Avalanche 1500 2007 — technical service bulletin
Bulletin 4040 · NHTSA communication 10021394 · issued Apr 24, 2007
Technical service bulletin
communication type
Engine and Engine Cooling
component
2007
model years
21
vehicle entries
Official summary
Harsh tcc apply or tcc cycling. *kb
Vehicles covered
- 2007 Chevrolet Avalanche 1500
- 2007 Chevrolet Avalanche 2500
- 2007 Chevrolet Express 1500
- 2007 Chevrolet Express 2500
- 2007 Chevrolet Express 3500
- 2007 Chevrolet Silverado 1500
- 2007 Chevrolet Silverado 2500
- 2007 Chevrolet Silverado 3500
- 2007 Chevrolet Suburban 1500
- 2007 Chevrolet Tahoe
- 2007 Chevrolet Trailblazer 360
- 2007 GMC Envoy 360
- 2007 GMC Savana 1500
- 2007 GMC Savana 2500
- 2007 GMC Savana 3500
- 2007 GMC Sierra 1500
- 2007 GMC Sierra 2500
- 2007 GMC Sierra 3500
- 2007 GMC Yukon
- 2007 Hummer H2
- 2007 Saab 9-7X
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.