The good news is the brake lights still appear to work even when this warning is displayed. Does anyone know if the brake lights are at risk of not coming on when you hit the brakes?
A leak in the braking circuit is a likely cause.. Brake fluid leaking from a poorly tightened joint etc - will cause the level in the reservoir to fall - causing the sensor to trip the warning light.
Brake fluid in reservoir below acceptable level.
Is it the parking brake light or the ABS light? is it red light or amber?
It is possible that a wheel speed sensor is bad. This will cause the anti lock braking to not read the wheel correctly which would be a brake problem that would cause a light.
This warning light means that you need to add brake fluid to your car. Improper fluid levels can cause brake malfunction resulting in an accident.
A short in the brake light circuit.
The transit brake warning light, on a Ford, can be reset by changing the brake pads. If the warning light is still on after changing the brake pads remove the fuse for 10 seconds.
Low brake fluid, pads worn down, other problems.
If you have led lights when the brake light warning switch is closed (foot on brake) because it has a predetermined voltage and the rig is change to led's there is a different voltage used, hence an error warning light. can get around it by adding the original lamp in series with the brake circuit out of the way somewhere say under the dash.
No, the license plate light is wired in with the rear tail lights, not the brake lights.
The transit brake warning light, on a Ford, can be reset by changing the brake pads. If the warning light is still on after changing the brake pads remove the fuse for 10 seconds.
Check the brake fluid level, as on many vehicles the "emergency brake" (in the UK, Hand-brake) warning light also acts as a warning light for low brake-fluid.