See also:

Erasing the function button codes
Note: You cannot erase individual buttons. 1. Press and hold the outer two function buttons simultaneously for approximately 20 seconds until the LED lamps above the buttons flash rapid ...

Flash-to-pass
Pull and release to activate. ...

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. ...