See also:

Car finder
Press twice within three seconds. The horn will chirp and the turn lamps will flash. It is recommended that this method be used to locate your vehicle, rather than using the panic alarm. ...

Fixed code programming
Note: It may be helpful to have another person assist you in programming the transmitter. To program units with fixed code DIP switches, you will need the garage door hand-held transmitter, ...

Erasing HomeLink buttons
To erase the three programmed buttons (individual buttons cannot be erased): • Press and hold the two outer HomeLink buttons until the indicator light begins to flash-after 20 seconds. Re ...