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.
Brake Fluid Level Indicator Switch Replacement
Brake Warning System Description and OperationExhaust Front Pipe Replacement (LUV,LUW)
Removal Procedure
Warning: Refer to Exhaust Service Warning.
Remove the drivetrain and front suspension frame skid plate. Refer to
Drivetrain and Front Suspension Frame Skid Plate Replacement.
Disconnect the heated oxygen sensor-2. Refer to Heated Oxygen Sensor
Rep ...
Steering Assist with HD map data (a feature of ProPILOT Assist 2.1)
In the Nissan Armada equipped with ProPILOT Assist 2.1, Steering Assist is enhanced
by HD map data, enabling more advanced driving support. When all required conditions
are met, the system indicator turns blue, signaling that enhanced functionality
is active.
In this advanced mode, the Nissan ...
Brakes
Basic information
If the braking performance of your Nissan Armada becomes inconsistent or reduced,
have the system inspected immediately. Professional service is strongly recommended
to maintain safety and reliability.
Self-adjusting brakes
Your Nissan Armada is equipped with self-adjusting ...