When it is dark enough outside and the exterior lamp control is in the automatic position, the headlamps come on automatically. See Exterior Lamp Controls.

The vehicle has a light sensor on top of the instrument panel. Make sure it is not covered, or the headlamps will be on when they are not needed.
The system may also turn on the headlamps when driving through a parking garage or tunnel.
Lights On with Wipers
If the windshield wipers are activated in daylight with the engine on, and the
exterior lamp control is in AUTO, the headlamps, parking lamps, and other exterior
lamps come on. The transition time for the lamps coming on varies based on wiper
speed. When the wipers are not operating, these lamps turn off. Move the exterior
lamp control to
or
to disable this feature.
Daytime Running Lamps (DRL)
Hazard Warning FlashersEngine Oil Cooler Replacement
Removal Procedure
Disconnect battery negative cable. Refer to Battery Negative Cable Disconnection
and Connection.
Drain engine coolant. Refer to Cooling System Draining and Filling
Remove the turbocharger oil feed pipe. Refer to Turbocharger Oil Feed
Pipe Replacement ...
Intelligent Key operating range
The Nissan Armada Intelligent Key system functions only when the key is located
within the defined operating range of the request switches 1 and 2 (if equipped).
For optimal performance, the Nissan Armada Intelligent Key must be within approximately
80 cm (31.50 in) of each request switch.
...
Hill descent control system
Basic information
WARNING
Do not rely solely on the Hill Descent Control system in the Nissan Armada
to regulate speed on steep downhill slopes. Always maintain full control of
the vehicle and use the brake pedal when necessary. Extra caution is required
on slippery, muddy, icy, or ext ...