These lights are on the center of the instrument panel.

The vehicle ahead light comes on when a vehicle is detected ahead and a possible collision can occur.

The forward collision alert comes on when following a vehicle much too closely. The light flashes when a vehicle is being rapidly approached.
See Forward Collision Alert (FCA) System.
Lane Departure Warning (LDW) Light
Traction Off LightBrake Assist System Description and Operation
System Component Description
The brake assist system consists of the following:
Brake Pedal
Receives, multiplies and transfers brake system input force from driver.
Brake Pedal Pushrod
Transfers multiplied input force received from the brake pedal to the
v ...
Inside mirror
Basic information
In the Nissan Armada, adjust the inside mirror by carefully setting both its
height and angle to achieve optimal rearward visibility and driving comfort.
Manual anti-glare type (if so equipped)
The Nissan Armada manual anti-glare inside mirror can be adjusted to reduce ...
Active sound enhancement
NOTE:
To ensure the active sound enhancement system in the Nissan Armada operates
at its best performance, follow these important guidelines:
Do not block or cover the speakers, as this may distort or reduce sound
quality.
Avoid modifying or replacing the original speaker components inst ...