System and method for automatic location assignment of wheels equipped with pressure sensors

A method of operating a tire pressure monitor system (12) on a vehicle (10) to determine a wheel location of wheels (14) equipped with pressure sensors (16). The method includes equipping a plurality of wheels (14) with a pressure sensor (16), determining a plurality of pressure values from each pressure sensor (16), detecting a variation of the pressure values from a plurality of pressure sensors (16), and determining a wheel location based on a comparison of the variations of the pressure values. Variations useful for determining wheel location may include running over an object such as a rumble strip or pot-hole on the roadway, or the vehicle (10) executing a turn.