Rear axle activation and operation may be checked by positioning the four wheels off the ground, starting the vehicle, fully applying the parking brake, and selecting the drive position.

Caution: Avoid rear differential damage. Do not exceed 20 percent accelerator pedal application or apply throttle for more than 5 seconds while the parking brake is applied.

Lightly depress the accelerator pedal while watching the rear wheels. They will rotate slightly as the drive line winds-up. This indicates the all wheel drive (AWD) is functioning.