
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, the system automatically turns on.
This light should come on
brie y when you start the
engine. If it stays on or
comes on while you
are driving, there is a
problem with your traction
control system.
The TRAC OFF button 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 freeing the front wheels. To turn off traction
control, press the TRAC OFF button. The traction
control system warning light will come on. The vehicle
stability control system (StabiliTrak
®) is always activated,
even when the traction control system is turned off.
To turn the traction control system back on, press the
TRAC OFF button again. The traction control system
warning light will go off. SeeTraction Control System
(TCS) Warning Light on page 3-34for more information.
Adding non-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modi cations
on page 5-3for more information.
StabiliTrak®System
Your vehicle may have this feature. The StabiliTrak®
system helps provide integrated control of the systems
such as anti-lock brake system, traction control and
engine control. This system automatically controls the
brakes and engine to help prevent the vehicle from
skidding when cornering on a slippery road surface or
turning the steering wheel abruptly.
4-10

This system will activate when your vehicle speed
reaches or exceeds 9 mph (15 km/h), and will
deactivate when the vehicle speed reduces to below
9 mph (15 km/h).
You may hear a sound in the engine compartment for
a few seconds when the engine is started or just
after the vehicle begins to move. This means that the
system is in the self-check mode, but does not indicate a
malfunction.
If the vehicle is going to skid during driving, the traction
control system warning light will blink and an alarm
will sound intermittently. Adjust your driving accordingly.
This light warns that there
is a problem somewhere in
the traction control
system or StabiliTrak
®.
Panic Brake Assist
Your vehicle has a panic brake assist system that
monitors the intention of the driver while braking. If the
system senses that the driver has applied hard/fast
pressure to the brake pedal, the system will generate
additional pressure, making it easier for the driver to
maintain brake application. When this happens the brake
pedal will feel easier to push. Just hold the brake pedal
down rmly and let the system work for you. You may feel
the brakes vibrate, or you may notice some noise but this
is normal. The brakes will return to normal operation after
the brake pedal has been released.
The brake assist system becomes operational after the
vehicle has accelerated to a speed in excess of
approximately 6 mph (10 km/h). It stops operating when
the vehicle decelerates to a speed below approximately
3 mph (5 km/h).
4-11

Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the
water. This can happen if the road is wet enough and
you are going fast enough. When your vehicle is
hydroplaning, it has little or no contact with the road.
Hydroplaning does not happen often. But it can if your
tires do not have much tread or if the pressure in
one or more is low. It can happen if a lot of water is
standing on the road. If you can see re ections
from trees, telephone poles, or other vehicles, and
raindrops dimple the water’s surface, there could be
hydroplaning.
Hydroplaning usually happens at higher speeds. There
just is not a hard and fast rule about hydroplaning.
The best advice is to slow down when it is raining.
Driving Through Deep Standing Water
Notice:If you drive too quickly through deep
puddles or standing water, water can come in
through your engine’s air intake and badly damage
your engine. Never drive through water that is
slightly lower than the underbody of your vehicle. If
you cannot avoid deep puddles or standing water,
drive through them very slowly.
Driving Through Flowing Water
{CAUTION:
Flowing or rushing water creates strong forces.
If you try to drive through owing water, as you
might at a low water crossing, your vehicle can
be carried away. As little as six inches of
owing water can carry away a smaller vehicle.
If this happens, you and other vehicle
occupants could drown. Do not ignore police
warning signs, and otherwise be very cautious
about trying to drive through owing water.
Some Other Rainy Weather Tips
Besides slowing down, allow some extra following
distance. And be especially careful when you
pass another vehicle. Allow yourself more clear
room ahead, and be prepared to have your
view restricted by road spray.
Have good tires with proper tread depth. SeeTires
on page 5-52.
4-19

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 4-21.
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.
4-20

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 5-52.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.
4-26