Antilock brake system (abs), Braking in emergencies, Antilock brake – Saturn 2009 VUE Hybrid User Manual

Page 192: System (abs)

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Antilock Brake
System (ABS)

This vehicle has the Antilock Brake
System (ABS), an advanced
electronic braking system that helps
prevent a braking skid.

When the engine is started and the
vehicle begins to drive away,
ABS checks itself. A momentary
motor or clicking noise might
be heard while this test is going on,
and it might even be noticed that
the brake pedal moves a little. This
is normal.

If there is a problem with ABS, this
warning light stays on. See
Antilock Brake System (ABS)
Warning Light
on page 3-28.

Let us say the road is wet and you
are driving safely. Suddenly, an
animal jumps out in front of you.
You slam on the brakes and
continue braking. Here is what
happens with ABS:

A computer senses that the wheels
are slowing down. If one of the
wheels is about to stop rolling, the
computer will separately work
the brakes at each wheel.

ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can
help the driver steer around
the obstacle while braking hard.

As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls braking
pressure accordingly.

Remember: ABS does not change
the time needed to get a foot
up to the brake pedal or always
decrease stopping distance. If you
get too close to the vehicle in
front of you, there will not be enough
time to apply the brakes if that
vehicle suddenly slows or stops.
Always leave enough room up
ahead to stop, even with ABS.

Using ABS

Do not pump the brakes. Just hold
the brake pedal down firmly and
let antilock work. The antilock pump
or motor operating might be
heard and the brake pedal might be
felt to pulsate, but this is normal.

Braking in Emergencies

ABS allows the driver to steer and
brake at the same time. In many
emergencies, steering can help more
than even the very best braking.

4-6

Driving Your Vehicle

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