Braking In Emergencies - GMC C series 2002 Owner's Manual

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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. This can help you steer around the obstacle
while braking hard.
As you brake, your computer keeps receiving updates on
wheel speed and controls braking pressure accordingly.
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Remember: Anti lock doesn't change the time you need
to get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle in
front of you, you won't have time to apply your brakes
if that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you have
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anti lock brakes.
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Using Anti Lock
Don't pump the brakes. Just hold the brake pedal down
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firmly and let anti lock work for you. You may feel the
brakes pulsate, or you may hear air exhausting, but this
is normal.

Braking in Emergencies

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With anti lock, you can steer and brake at the same
time. In many emergencies, steering can help you
more than even the very best braking.
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