Braking In Emergencies - Hummer 2003 H2 Owner's Manual

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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 vibrate, or you may notice some noise, 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.
Traction Control System (TCS)
Your vehicle has a Traction Control System (TCS) that
limits wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that any of the wheels are spinning or beginning to lose
traction. When this happens, the system applies the
brakes to limit wheel spin.
The Traction Control System may operate on dry roads
under some conditions. When this happens, you may
notice a reduction in acceleration. This is normal and
doesn't mean there's a problem with your vehicle.
Examples of these conditions include a hard acceleration
in a turn, an abrupt upshift or downshift of the
transmission or driving on rough roads.
If your vehicle is in cruise control when the TCS begins
to limit wheel spin, the cruise control will automatically
disengage. When road conditions allow you to safely
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use it again, you may re engage the cruise control.
See "Cruise Control" in the Index.
Another feature of this system is the Traction Control 2
mode. TC2 should be selected for improved traction
system performance when the vehicle is on loose
surfaces such as deep sand or mud.
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