The "BRAKE" indicator light will illuminate if the parking brake is not fully released. The driver may check if the parking brake is fully released. Sometimes the parking brake seems to be released, but it may need be held for a little while before it really releases. The customer can also repeat applying and releasing the parking brake, while parked, as
The light will also be on if the brake fluid is slightly lower than allowed. That is usually an indication that the brake pads are worn and need service soon.
The worst-case scenario is that the brake system is leaking fluid, which could lead to hydraulic failure resulting in no braking power. The driver would feel the brake pedal become spongy, and braking power required would steadily decrease or become more difficult. The driver should not drive the vehicle in this situation. The vehicle should be towed and repaired. Additional diagnostics that may be performed by the dealer include: parking brake adjustment, parking brake warning switch, parking brake warning switch wiring harness and connected components, brake fluid-level warning switch, brake fluid-level warning switch wiring harness and connected components.