Chevrolet 1993 Astro Passenger Owner's Manual page 168

If you keep pace with the traffic and allow realistic following distances, you
will eliminate a
lot o f
unnecessary braking. That means better braking and
longer brake life.
4
If your engine ever stops while you're driving, brake normally but don't
pump your brakes. If you do, the pedal
may
get harder to push down. If
your engine stops, you will still have some power brake
assist.
But you
will use
it
when you brake,
Once
the power assist is used
up,
it may
take longer to stop and the brake
pedal
will be harder to push.
Anti-lOCk
Brakes (ABS)
Your
vehicle has
an
advanced electronic braking system that can help you
keep it under control. When you start your vehicle and begin to drive away,
you may hear a momentary motor
or clicking noise. This is the ABS system
testing itself.
AM41 501 0
Here's how anti-lock works. Let's say the road is wet. You're driving safely.
Suddenly an animal jumps 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 each front 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 most of available
tire and road conditions. You can steer around the obstacle while braking
hard.
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