1998 Honda Prelude Owner's Manual - Page 240

Brake System Indicator brake fluid reservoir. Press lightly on the brake pedal to see if it feels normal. If it does, check the brake fluid level the next time you stop at a service station (see page 185). If the fluid level is low, take the vehicle to your dealer and have the brake system inspected for leaks or worn brake pads. However, if the brake pedal does not feel normal, you should take immediate action. Because of the brake system's dual-circuit design, a problem in one part of the system will still give you braking at two wheels. You will feel the brake pedal go down much farther before the vehicle begins to slow down, and you will have to press harder on the pedal. The distance needed to stop will be much longer. Slow down by shifting to a lower gear, and pull to the side of the road when it is safe. Because of the Taking Care of the Unexpected BRAKE SYSTEM INDICATOR longer distance needed to stop, it is hazardous to drive the vehicle. You should have it towed, and repaired as soon as possible. If you must drive the vehicle a short distance in this condition, drive slowly and cautiously. BRAKE The Brake System indicator light comes on when you turn the ignition ON (II). If the parking brake is not set, it goes off after you start the engine. If the parking brake is set, it goes off when you fully release the parking brake with the engine running. If it comes on at any other time, it indicates a problem with the vehicle's brake system. In most cases, the problem is a low fluid level in the