* Parking brake engaged: The most common and least serious cause. Simply release the parking brake.
* Low brake fluid: This is a serious problem. Low brake fluid indicates a leak somewhere in the braking system. Do not drive the car until this is addressed by a mechanic. Driving with low brake fluid can lead to complete brake failure.
* Brake system malfunction: This is a general warning that something is wrong with the braking system. It could be anything from a faulty sensor to a more serious mechanical issue. Have the car inspected by a mechanic as soon as possible.
* ABS (Anti-lock Braking System) malfunction: Some brake warning lights also incorporate the ABS warning light. If the ABS light is on in conjunction with the brake light, there might be an issue with the ABS system itself, which, while still allowing braking, reduces the effectiveness of the ABS function. Again, have it checked by a mechanic.
In short: If the brake warning light is illuminated on your 2003 Ford Taurus SES, do not ignore it. The severity ranges from a simple parking brake to a potentially dangerous brake failure. Have the vehicle inspected by a qualified mechanic to determine the cause and have it repaired. Do not drive the car if you suspect a serious brake issue.
