Abstract: A probe-operated guide is provided with battery-powered lights on a pole, such that a driver can attach a trailer to a vehicle without help from another person. The guide is mounted directly above the trailer cup on a trailer, and the lights on the guide can be adjusted in height and orientation to achieve the optimum visibility for the driver from most viewing angles. A direction light on the guide can be switched on, so that when backing up the driver can align it with a small light placed in the center-back of the vehicle. A directional probe on the guide can also be adjusted to turn on a second light on the guide when the vehicle is in position for attaching the trailer cup to a trailer hitch on the vehicle. After stopping the vehicle, the driver switches off, removes, and stores the guide and attaches the trailer to the vehicle.