Braking In Emergencies - GMC TopKick 2007 Owner's Manual

ABS 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.
Remember: ABS does not 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 will not
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 ABS.
Using ABS
Do not pump the brakes. Just hold the brake
pedal down firmly and let anti-lock work for you.
You may feel the brakes pulsate, or you may hear
air exhausting if you have air brakes, but this is
normal.

Braking in Emergencies

With ABS, you can steer and brake at the same
time. In many emergencies, steering can help you
more than even the very best braking.
209