A system for controlling a vehicle conveyor and a vehicle wash having the same are provided. The system includes an array of beam transmitters, each being positionable to transmit a beam towards a vehicle path through which a vehicle is expected to travel. Each of at least one sensor is positionable to receive the beam from at least one of the array of beam transmitters when the beam is unobstructed and generate sensor data. A storage stores computer-executable instructions. A controller in communication with the storage and connected to the at least one sensor, when executing the computer-executable instructions, controls operation of the vehicle conveyor at least partially based on the sensor data.