For those of us with viper 2 way remotes, here is how to program certain features on it.
Step 1: The Program Button.
On the back is a p button. Just press and hold for 2 seconds. It will long beep and enter programming mode.
Pressing for 2 seconds or ignoring it for 20 seconds will cause it to exit programming mode.
Step 2: Putting Into Vibrate Mode.
Pressing the arm button will enter or exit vibrate mode. This is useful for turning off those annoying confirmation noises.
Step 3: Backlighting.
The disarm button toggles the backlight. Quite handy for use in the dark!