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There are several conditions that can cause this
message to appear.
One condition is overheating, which could
occur if StabiliTrak®activates continuously
for an extended period of time.
The message also displays if the brake
system warning light is on. SeeBrake System
Warning Light on page 204.
The message could display if the stability
system takes longer than usual to complete its
diagnostic checks due to driving conditions.
The message displays if an engine or vehicle
related problem has been detected and the
vehicle needs service. See your dealer.
The message turns off as soon as the conditions
that caused the message to be displayed are
no longer present.
STARTING DISABLED SERVICE
THROTTLE
This message displays when your vehicle’s throttle
system is not functioning properly. Have your
vehicle serviced by your dealer.
THEFT ATTEMPTED
This symbol appears
with this message.
This message displays if the theft-deterrent
system has detected a break-in attempt while you
were away from your vehicle. SeeTheft-Deterrent
System on page 112for more information.
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Control of a Vehicle
You have three systems that make your vehicle go
where you want it to go. They are the brakes, the
steering, and the accelerator. All three systems
have to do their work at the places where the tires
meet the road.
Sometimes, as when you are driving on snow or
ice, it is easy to ask more of those control systems
than the tires and road can provide. That means
you can lose control of your vehicle. See
StabiliTrak
®System on page 283.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modi cations on page 347.
Braking
SeeBrake System Warning Light on page 204.
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.
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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 may 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 may 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 may take longer to stop and the brake pedal
will be harder to push.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modi cations on page 347.Anti-Lock Brake System (ABS)
Your vehicle has the Anti-Lock Brake System
(ABS), an advanced electronic braking system that
will help prevent a braking skid.
When you start your engine and begin to drive
away, ABS will check itself. You may hear a
momentary motor or clicking noise while this test
is going on. This is normal.
If there is a problem
with the ABS, this
warning light will stay
on. SeeAnti-Lock Brake
System Warning Light
on page 205.
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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 rmly 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
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.
Traction Control System (TCS)
Your vehicle has a traction control system that
limits wheel spin. This is especially useful in
slippery road conditions. On a rear-wheel-drive
vehicle, the system operates if it senses that
one or both of the rear wheels are spinning or
beginning to lose traction. On an All-Wheel-Drive
(AWD) vehicle, the system will operate if it
senses that any of the wheels are spinning or
beginning to lose traction. When this happens, the
system brakes the spinning wheel(s) and/or
reduces engine power to limit wheel spin.
You may feel or hear the system working, but this
is normal.
The TCS warning light will also ash to indicate
that the traction control system is active.
This warning light will
come on to let you
know if there is
a problem with your
traction control system.
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SeeTraction Control System (TCS) Warning Light
on page 206. When this warning light is on, the
system will not limit wheel spin. Adjust your driving
accordingly.
The TCS automatically comes on whenever you
start your vehicle. To limit wheel spin, especially in
slippery road conditions, you should always
leave the system on. But you can turn the traction
control system off if you ever need to.
Notice:Do not repeatedly brake or accelerate
heavily when the TCS is off. You could
damage your vehicle’s driveline.
When the TCS is switched off on AWD vehicles,
you may still feel the system working. This is
normal and necessary with the AWD hardware on
your vehicle.
You should turn the system off if your vehicle ever
gets stuck in sand, mud or snow and rocking
the vehicle is required. SeeRocking Your Vehicle
to Get It Out on page 322andIf Your Vehicle
is Stuck in Sand, Mud, Ice, or Snow on page 321
for more information. See alsoWinter Driving
on page 317for information on using TCS when
driving in snowy or icy conditions.To turn the system off,
press the TC (traction
control) button
located on the console
under the climate
controls.
If you press the TC (traction control) button once,
the traction control system will turn off and the
traction control system warning light will come on.
Press the TC button again to turn the system
back on. If you press and hold the TC button for
ve seconds, the StabiliTrak
®system and the
traction control system will turn off. Press the TC
(traction control) button again to turn StabiliTrak
®
back on. For more information, seeStabiliTrak®
System on page 283.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modi cations on page 347for more information.
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Magnetic Ride Control
Your vehicle may have Magnetic Ride Control
that automatically adjusts the ride of your vehicle.
Automatic ride control is achieved through a
computer used to control and monitor the
suspension system. The controller receives input
from various sensors to determine the proper
system response. If the controller detects a
problem within the system, the DIC will display a
SERVICE SUSPENSION SYS message. See
DIC Warnings and Messages on page 220
for more information. See your dealer for service.
Limited-Slip Rear Axle
Your vehicle may have this feature. A limited-slip
rear axle can give you additional traction on
snow, mud, ice, sand or gravel. It works like a
standard axle most of the time, but when one of
the rear wheels has no traction and the other does,
this feature will allow the wheel with traction to
move the vehicle.
StabiliTrak®System
Your vehicle is equipped with a vehicle stability
enhancement system called StabiliTrak®.It
is an advanced computer controlled system that
assists you with directional control of the vehicle in
difficult driving conditions.
StabiliTrak
®activates when the computer senses
a discrepancy between your intended path
and the direction the vehicle is actually traveling.
StabiliTrak
®selectively applies braking pressure
at any one of the vehicle’s brakes to help steer the
vehicle in the direction which you are steering.
When the stability control system activates,
the traction control system and StabiliTrak
®light
will ash on the instrument panel cluster. This also
occurs when traction control is activated. You
may also hear a noise or feel vibration in the brake
pedal. This is normal. Continue to steer the
vehicle in the direction you want it to go.
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City Driving
One of the biggest problems with city streets is
the amount of traffic on them. You will want
to watch out for what the other drivers are doing
and pay attention to traffic signals.Here are ways to increase your safety in city
driving:
Know the best way to get to where you are
going. Get a city map and plan your trip
into an unknown part of the city just as you
would for a cross-country trip.
Try to use the freeways that rim and crisscross
most large cities. You will save time and
energy. SeeFreeway Driving on page 312.
Treat a green light as a warning signal. A
traffic light is there because the corner is
busy enough to need it. When a light turns
green, and just before you start to move,
check both ways for vehicles that have not
cleared the intersection or may be running the
red light.
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Winter Driving
Here are some tips for winter driving:
Have your vehicle in good shape for winter.
You may want to put winter emergency
supplies in your vehicle.
Also seeTires on page 398.Include an ice scraper, a small brush or broom, a
supply of windshield washer uid, a rag, some
winter outer clothing, a small shovel, a ashlight, a
red cloth, and a couple of re ective warning
triangles. And, if you will be driving under severe
conditions, include a small bag of sand, a
piece of old carpet, or a couple of burlap bags to
help provide traction. Be sure you properly
secure these items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where the tires
meet the road probably have good traction.
However, if there is snow or ice between the tires
and the road, you can have a very slippery
situation. You will have a lot less traction, or grip,
and will need to be very careful.
317