PONTIAC VIBE 2009 Owners Manual
Page 151 of 318
Braking
SeeBrake System Warning Light on
page 4-17.
Braking action involves perception
time and reaction time. First, you
have to decide to push on the brake
pedal. That is perception time. Then
you have to bring up your foot and do
it. That is reaction time.
Average reaction time is about
three-fourths of a second. But that
is only an average. It might be less
with one driver and as long as two or
three seconds or more with another.
Age, physical condition, alertness,
coordination, and eyesight all play
a part. So do alcohol, drugs, and
frustration. But even in three-fourths
of a second, a vehicle moving at
60 mph (100 km/h) travels 66 feet
(20 m). That could be a lot of
distance in an emergency, so
keeping enough space between
your vehicle and others is important.And, of course, actual stopping
distances vary greatly with the
surface of the road, whether it is
pavement or gravel; the condition of
the road, whether it is wet, dry, or icy;
tire tread; the condition of the brakes;
the weight of the vehicle; and the
amount of brake force applied.
Avoid needless heavy
braking. Some people drive
in spurts — heavy acceleration
followed by heavy braking — rather
than keeping pace with traffic.
This is a mistake. The brakes might
not have time to cool between hard
stops. The brakes will wear out much
faster if you do a lot of heavy braking.
If you keep pace with the traffic
and allow realistic following
distances, you will eliminate a lot of
unnecessary braking. That means
better braking and longer brake life.If your vehicle’s engine ever stops
while you are driving, brake normally
but do not pump the brakes. If you
do, the pedal could get harder to
push down. If the 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 can take longer to stop and the
brake pedal will be harder to push.
Adding non-dealer/non-retailer
accessories can affect your vehicle’s
performance. SeeAccessories
and Modifications on page 9-3.
Driving and Operating 8-19
2009 - Pontiac Vibe Owner Manual
Page 152 of 318
Antilock Brake
System (ABS)
Your vehicle has the Antilock
Brake System (ABS), an advanced
electronic braking system that
will help prevent a braking skid.
When you start the engine and
begin to drive away, ABS will check
itself. You might hear a momentary
motor or clicking noise while this test
is going on, and you might even
notice that the brake pedal moves a
little. This is normal.
If there is a problem with ABS,
this warning light will stay on.
SeeAntilock Brake System (ABS)
Warning Light on page 4-18.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
you steer around the obstacle while
braking hard.
As you brake, the 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 alwaysdecrease stopping distance. If you
get too close to the vehicle in front of
you, you will not have time to apply
the 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 rmly and
let antilock work for you. You might
hear the antilock pump or motor
operate, and feel the brake
pedal pulsate, 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. United States
Canada
8-20 Driving and Operating
2009 - Pontiac Vibe Owner Manual
Page 153 of 318
Traction Control
System (TCS)
Your vehicle has a traction control
system that limits wheel spin. This
is especially useful in slippery road
conditions. The system operates
only if it senses that one or both of
the drive wheels are spinning or
beginning to lose traction. When this
happens, the system works the front
brakes and reduces engine power to
limit wheel spin.
You may feel or hear the system
working, but this is normal. Leave the
system on during ordinary driving so
that it can operate when needed.
When the ignition is turned to
ON/RUN, the system automatically
turns on. If the system has been
turned off, it will automatically turn on
at 35 mph (55 km/h). TCS cannot be
turned off above 35 mph (55 km/h).This light should come on brie y
when the engine is started.
The traction control system warning
light ashes and an alarm will
sound intermittently when the
system is limiting wheel spin.
The
gswitch is located to the left
of the steering wheel below the
instrument panel cluster.
When getting the vehicle out of mud
or newly fallen snow, turn off the
traction control system. The system
that controls engine performance
interferes with the process of freeingthe front wheels. To turn off traction
control, press and release
the
gswitch. The traction control
system warning light will come on.
To turn the traction control system
back on, press the
gswitch again
or increase vehicle speed and the
system will automatically turn back
on. The traction control system
warning light will go off. SeeTraction
Control System (TCS) Warning Light
on page 4-19Traction Control
System (TCS) Warning Light for
more information.
To turn off both the traction control
system and StabiliTrak
®, press
and hold the
gswitch while
the vehicle is stopped. The traction
control system warning light and
the VSC OFF light will come on.
Driving and Operating 8-21
2009 - Pontiac Vibe Owner Manual