1997 Buick Riviera Owner's Manual - Page 171

The anti-lock system can change the brake pressure faster than any driver could. The computer is programmed tomake - ~m.mt of available tireand e road conditions. Here's how anti-lock works. Let's say the road is wet. You're driving safely. Suddenly animal jumps out in an front of you. You slam on the brakes. Here's what happens with ABS. You can steer around the obstacle while braking hard. A computer senses that wheels are slowing down. one If of the wheels is about to stop rolling, the computer will As you brake,your computer keeps receiving updates on separately work the brakes at each front wheel and at the wheel speed and controls braking pressure accordingly. rear wheels. 4-8