Abstract: A user detection system and method a motor vehicle that has a closure panel for facilitating access to the motor vehicle by a user of the motor vehicle are provided. The system includes a hardware token associated with and carried by the user to provide an authorization to access the motor vehicle. The system additionally includes at least two proximity sensors configured to detect the hardware token in proximity to the motor vehicle. The system also includes a controller connected to the at least two proximity sensors and configured to determine a location of the user relative to the motor vehicle using the at least two proximity sensors. The controller grants or rejects access to the motor vehicle via the at least one closure panel based on the authorization and the location of the user relative to the motor vehicle.

Abstract: A vehicle washing system uses a charge chamber gravity fed through a check valve from a wash fluid tank. A supply line connects the charge chamber to a compressed air supply. A discharge line connects the charge chamber to nozzles directed onto lights of the vehicle. First and second control valves are connected in series with the supply line and the discharge line respectively. The control valves are opened together so that a charge of compressed air from the compressed air supply pressurizes the charge chamber and discharges at least a portion of the prescribed quantity of wash fluid from the charge chamber through the nozzles. A pressure balancing passage balances pressure between the wash fluid tank and the charge chamber to allow the filling of the charge chamber under gravity through the check valve when the control valves are closed.