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February 1, 2003 Service bulletin

Service 4WD indicator illuminated, diagnostic trouble code (DTC) B2725 set, transfer case selector switch...

Chevrolet technical service bulletin 020421002A for 2002-2003 Chevrolet Trailblazer and 2002-2003 GMC Envoy.

Bulletin number
020421002A
Component
Power train: transfer case (4-wheel drive)
Summary
Service 4wd indicator illuminated, diagnostic trouble code (dtc) b2725 set, transfer case selector switch is in one position - indicator lamp indicates another range is selected. Tt

Owners of these vehicles have filed 533 complaints in the transmission category.

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