2010 GMC Sierra 2500 HD Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2010 GMC Sierra 2500 HD

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.

The fuel pump may fail causing the engine to stall and not restart.

Gas engines only
A Loose or worn gas cap may cause Check Engine Light to illuminate.

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My truck is a 2010 GMC Silverado 2500 series HD . I would like to know some reasons why the truck is stuck in high gear.

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If too much current is drawn from the auxiliary battery, the fusible link can melt, causing risk of fire. Dealers will replace the jumper harness with one that includes a 40 amp inline fuse, and provide vehicle owners with supplemental owners manual information free of charge to resolve the problem.

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