Car Problem Reports

GMC Yukon 4WD Transfer Case Position Sensor/Selector Switch May Fail

GMC Yukon Problem
11 Reports
Me Too

Model Years Affected: 2000, 2001, 2002, 2003, 2004, 2005

Drive Train Affected: 4WD

Average Mileage: 106,000 mi (70,000 mi - 134,000 mi)


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.

  • Visitor, , 4WD, 100,000 mi

    Light comes on when driving. Sometimes it stays on sometimes it goes out.

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  • Visitor, , 4WD, 70,000 mi

    automatically switches from 2hi to auto4 to 4hi etc. turn car off, restart, reposition sensor button to 2hi

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