The automatic ControlTrac four-wheel drive system can be coupled with AdvanceTrac electronic stability control, which includes four-wheel electronic traction control. The combination of these two systems is innovative due to a vehicle equipped as such, can continue to move forward with only one wheel having traction. AdvanceTrac's four-wheel electronic traction control system uses the vehicle's four-wheel four-sensor four-channel anti-lock braking system (ABS) and is programmed with additional anti-slip logic to simulate differential locks via aggressively "brake locking" either the front or rear drive axle differentials. By ABS brake locking the front and rear differentials, up to 100 percent of torque can be sent to any one drive wheel, allowing the vehicle to keep moving, even with two of its drive wheels (one front, one rear) completely off the ground.
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