Locking with key

The power door lock system allows you to lock or unlock all doors at the same time.
Turning the key toward the front 1 of the vehicle locks all doors.
Turning the key one time toward the rear 2 of the vehicle unlocks that door. From that position, returning the key to neutral 3 (where the key can only be removed and inserted) and turning it toward the rear again within 5 seconds unlocks all doors 4 .
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 ...
Push-button ignition switch positions
LOCK (Normal parking position):
The ignition switch can only be locked in this
position.
The ignition switch will be unlocked when it is
pushed to the ACC position while carrying the
Intellige ...
Child restraints
...
