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 LightHood Hold-Open Rod Replacement
Hood Hold-Open Rod Replacement
Callout
Component Name
1
Hood Hold-Open Rod
Warning: When a hood hold open device is being removed or
installed, provide alternate support to avoid the possibility of damage
...
Mode Control Cable Replacement (LHD)
Mode Control Cable Replacement
Callout
Component Name
Preliminary Procedures
Remove the heater and air conditioning control.Refer to Heater and
Air Conditioning Control Replacement
Remove the instrument panel lower trim p ...
Torque Converter Installation
Torque Converter Installation
Callout
Component Name
1
Torque Converter Assembly
Note: Failure to lower the torque converter straight down
could damage the torque converter clutch lip seal inside the torque ...