Abstract: A portable vehicle parking assistance device that can be used in any parking location to indicate when a vehicle has reached a selected point and should be stopped. The device includes a movable sensor arm extending upwardly from a tray which contains ballast material that provides sufficient weight to maintain the entire parking assistance device in the desired position on a garage floor or other surface on which the vehicle travels. The upper end of the movable sensor arm carries a motion indicator located in the sight of the vehicle driver to signal the driver when the bumper or other extremity of the vehicle has contacted the sensor arm and should be stopped. Preferably, both an audible indicator and a signal light are provided in addition to the motion indicator to signify that the vehicle should be stopped immediately.