Other information:
Press the learn button on the garage
door opener motor, you have 30 seconds
to complete the next two steps.
Return to your vehicle.
Press and hold one of the three
HomeLink function buttons you want to
program for two seconds, then release.
Repeat this step. Depending on your
brand of garage door opener, you may
need to repeat this sequence a third time.
..
WARNING: Do not adjust the spring
bars so that your vehicle's rear bumper is
higher than before attaching the trailer.
Doing so will defeat the function of the
weight-distributing hitch, which may cause
unpredictable handling, and could result
in serious personal injury.
Do not tow a trailer until you drive your
vehicle at least 1,000 mi (1,600 km).
Do not use a hitch that either clamps ont..