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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System With TCS & VSES >> Diagnostic Information and Procedures >> Traction Off Indicator Malfunction >> Repair Validation

Repair Validation

Ignition OFF for 5 seconds, Ignition ON, observe that the traction control off indicator functions by illuminating for 2 seconds then turns OFF. This is the bulb self test that operates upon every ignition key start cycle.