* Low brake fluid: This is the most common reason. Check the brake fluid reservoir (usually a clear plastic container near the master cylinder under the hood) – if the fluid level is low, you have a leak somewhere in the system and need to get it checked immediately.
* Parking brake engaged: Make sure your parking brake is fully released.
* Brake system failure: This could be a variety of things, including:
* Worn brake pads: The wear sensors might have triggered the light.
* Problems with the master cylinder: This is a crucial part of the brake system; failure can lead to complete brake failure.
* Leaking wheel cylinder or caliper: These components are responsible for applying the brakes at each wheel. A leak leads to low brake fluid and reduced braking performance.
* Faulty brake light switch: This switch tells the car when the brake pedal is pressed; a faulty switch can cause the light to stay on, even if the brakes are fine.
* ABS system malfunction (if equipped): The Anti-lock Braking System (ABS) light might also be illuminated in conjunction with the brake light. This indicates a problem with the ABS system itself.
What to do:
1. Pull over safely as soon as possible. Do not continue driving if the brake light is on.
2. Check the brake fluid level.
3. Inspect the parking brake.
4. If you're not comfortable inspecting the system yourself, call a tow truck or have your car towed to a mechanic immediately. Driving with a malfunctioning brake system is extremely dangerous.
Ignoring this warning light could lead to a serious accident. It's crucial to address the issue as soon as possible.
