The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working
If the warning light comes on, there is a brake problem. Have the brake system inspected right away.
Warning
The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service.

This light should come on briefly when the ignition is turned to ON. If it does not come on then, have it fixed so it will be ready to warn if there is a problem.
When the ignition is on, the brake system warning light will also come on when the parking brake is set. The light will stay on if the parking brake does not fully release. If it stays on after the parking brake is fully released, it means there is a brake problem.
If the light comes on while driving, carefully pull off the road and stop. The pedal may be harder to push or may go closer to the floor. It may take longer to stop. If the light is still on, have the vehicle towed for service. See Towing the Vehicle.
Service Vehicle Soon Light
Antilock Brake System (ABS) Warning LightVehicle Speed Sensor Replacement
Vehicle Speed Sensor Replacement
Callout
Component Name
1
Engine Wiring Harness Bracket Nut
Caution: Refer to Fastener Caution.
Tighten
9 Y (80 lb in)
2
...
Tire Pressure Monitoring System (TPMS)
Basic information
For optimal safety and performance of your Nissan Armada, each tire—including
the spare tire (if equipped)—should be inspected at least once a month when cold
and inflated according to the manufacturer’s recommended pressure values listed
on the vehicle placard or tire ...
SAND mode
WARNING
When SAND mode is activated in the Nissan Armada, the Vehicle Dynamic Control
(VDC) system operates with reduced intervention. As a result, the system may not
react in the same way as it does in STANDARD mode. To minimize the risk of accidents,
always drive the Nissan Armada with caut ...