Brake Warning Indicator
WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The red brake warning light (BRAKE) is used to indicate a low fluid level, brake concern, a parking brake that is not fully released, or an anti-lock brake system (ABS) fault. The brake fluid level switch is located in the brake fluid reservoir.