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 Rotor Thickness Measurement
Warning: Refer to Brake Dust Warning.
If the inboard friction surface of the brake rotor is not accessible, reposition
and support the caliper with the brake pads. Refer to Front Disc Brake Pads
Replacement.
Clean the friction surfaces of the brake rotor with denatured al ...
Charge Air Cooler Replacement
Charge Air Cooler Replacement
Callout
Component Name
Preliminary Procedures
Disconnect the negative battery cable. Refer to Battery Negative
Cable Disconnection and Connection.
Raise and properly support the vehicle. Refe ...
Horn
To sound the horn in the Nissan Armada, press firmly on the center pad area of
the steering wheel.
The horn is an essential safety feature used to alert other road users and prevent
potential hazards.
WARNING
Do not attempt to disassemble or modify the horn system in the Nissan Armada,
...