See also:

New Frontier PRO-4X Off-Road Model
Frontier's all-new PRO-4X trim offers drivers outstanding off-road flexibility, pairing Frontier's already impressive list of standard equipment features with the PRO-4X's off-road performance enh ...

Preventing the Intelligent Key from being left in the vehicle
If you lock all doors using the power door lock switch with the Intelligent Key in the vehicle, all of the doors unlock immediately and the buzzer will warn you when the door is closed. ...

Clearing the programmed information
Individual buttons cannot be cleared. However, to clear all programming, press and hold the two outside buttons and release when the indicator light begins to flash (approximately 20 seconds). ...