1993 Chevrolet Cavalier Owner's Manual - Page 136

Your Driving and the Road Anti-Lock Brakes (ABS) Your Chevrolet has an advanced electronic braking system that will help prevent skidding. This light on the instrument panel will go on when you start your vehicle. When you start your vehicle and begin to drive away you may hear a momentary motor or clicking noise and you may even notice that your brake pedal moves a little while this is going on. This is the ABS system testing itself. If you have your foot on the brake pedal, this check won't happen until the vehicle goes about 4 mph (6 km/h) or until you take your footoff the brake pedal. After an ABS stop, you may hear a clicking noisethe next time the vehicle goes about 4 mph (6 km/h). If there's a problem with the anti-lock brake system, the anti-lock brake system warning light will stay onor flash. See the Index under Anti-Lock Brake System Warning Light. Here's how anti-lock works. Let's say the road is wet. You're driving safely. Suddenly an animaljumps out in front of you. You slam on the brakes. Here's what happens with ABS. A computer senses that wheels are slowing down. The computer separately works the brakes at eachfront wheel and at the rear wheels. The anti-lock system can change the brake pressure faster than any driver could. The computer is programmed to make the mostof available tire and road conditions. 134