Service 4WD light illuminated, diagnostic trouble code (DTC) C0374 set
Chevrolet technical service bulletin 05-04-21-003 for 2003-2007 Chevrolet Tahoe, 2007 GMC Sierra 1500 and 2003-2007 Chevrolet Silverado and others.
- Bulletin number
- 05-04-21-003
- Component
- Power train: transfer case (4-wheel drive)
- Summary
- Service 4wd light illuminated, diagnostic trouble code (dtc) c0374 set. Tt updated 10/05/07. Nj inspect wiring harness to transfer case speed sensors, replace wiring harness. Updated 7/18/08
Owners of these vehicles have filed 961 complaints in the transmission category.
Vehicles covered
- Chevrolet Tahoe 2003-2007 20032004200520062007
- GMC Sierra 1500 2007 2007
- Chevrolet Silverado 2003-2007 20032004200520062007
- Chevrolet Suburban 2003-2005 200320042005
- Chevrolet Trailblazer 2003-2006 2003200420052006
- GMC Yukon 2003-2007 20032004200520062007
- GMC Sierra 2003-2006 2003200420052006
- GMC Envoy 2003-2006 2003200420052006
- Chevrolet Avalanche 2003-2005 200320042005
- GMC Sierra 2500 2007 2007
- Cadillac Escalade 2003-2006 2003200420052006
- Chevrolet Suburban 1500 2006-2007 20062007
- Oldsmobile Bravada 2003-2004 20032004
- Chevrolet Avalanche 1500 2006-2007 20062007
- GMC Sierra 3500 2007 2007
- Buick Rainier 2004-2006 200420052006
- Saab 9-7X 2005-2007 200520062007
- Chevrolet Suburban 2500 2006 2006
- Chevrolet Trailblazer 360 2007 2007
- Chevrolet Avalanche 2500 2006-2007 20062007
- GMC Envoy 360 2007 2007
- GMC Sierra Classic 2007 2007
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