See also:

Erasing Universal Home RemoteButtons
You should erase the programmed buttons when you sell the vehicle or terminate your lease. To erase either rolling code or fixed code on the Universal Home Remote device, do the following: 1. ...

Safety Chains
Always attach chains between the vehicle and the trailer. Cross the safety chains under the tongue of the trailer to help prevent the tongue from contacting the road if it becomes separated ...

Programming with a Recognized Transmitter (Keyless Access Vehicles Only)
A new transmitter can be programmed to the vehicle when there is one recognized transmitter. To program, the vehicle must be off and all of the transmitters, both currently recognized and new, mus ...