
LOCK/OFF:This is the only position
from which you can remove the key.
This locks the steering wheel,
ignition and automatic transmission.
Push in the ignition switch as you
turn the key toward you.
On vehicles with an automatic
transmission, the shift lever must be
in P (Park) to turn the ignition switch
to the LOCK/OFF position.
A warning tone will sound if the driver
door is opened with the key in the
ignition.
The ignition switch can bind in the
LOCK/OFF position with your wheels
turned off center. If this happens,
move the steering wheel from right
to left while turning the key to
ACC/ACCESSORY. If this doesn’t
work, then the vehicle needs service.{CAUTION
On manual transmission vehicles,
turning the key to LOCK/OFF and
removing it will lock the steering
column and result in a loss of
ability to steer the vehicle.
This could cause a collision.
If you need to turn the engine
off while the vehicle is moving,
turn the key only to ACC/
ACCESSORY. Do not push the
key in while the vehicle is moving.
ACC/ACCESSORY: This position
provides power to some of the
electrical accessories. It unlocks the
steering wheel and ignition. To move
the key from ACC/ACCESSORY to
LOCK/OFF, push in the key and then
turn it to LOCK/OFF.
A warning tone will sound when the
driver door is opened when the
ignition is still in ACC/ACCESSORY
or LOCK/OFF and the key is in the
ignition. ON/RUN:
The ignition switch stays
in this position when the engine is
running. This position can be used
to operate the electrical accessories,
including the ventilation fan and
115 volt power outlet, as well as to
display some warning and indicator
lights. The transmission is also
unlocked in this position on
automatic transmission vehicles.
The battery could be drained
if you leave the key in the ACC/
ACCESSORY or ON/RUN position
with the engine off. You may not be
able to start the vehicle if the battery
is allowed to drain for an extended
period of time.
START: This position starts the
engine. When the engine starts,
release the key. The ignition switch
will return to ON/RUN for normal
driving.
Driving and Operating 8-17

Brakes
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. SeeAntilock
Brake System (ABS) Warning Light
on page 4-17. 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 might be heard operating,
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.
United States
Canada
8-32 Driving and Operating

Parking Brake
To set the parking brake, hold the
brake pedal down and pull up on the
parking brake lever. If the ignition is
on, the brake system warning light
will come on.
To release the parking brake, hold
the brake pedal down. Pull the
parking brake lever up until you canpress the release button. Hold the
release button in as you move the
lever all the way down.
Notice:
Driving with the parking
brake on can overheat the brake
system and cause premature wear
or damage to brake system parts.
Make sure that the parking brake
is fully released and the brake
warning light is off before driving.
If you are towing a trailer, see
Driving Characteristics and Towing
Tips on page 8-44.
Ride Control Systems
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.
Driving and Operating 8-33

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 55 km/h (35 mph). TCS cannot be
turned off above 55 km/h (35 mph).
This light should come on briefly
when the engine is started.
The traction control system warning
light flashes and an alarm will sound
intermittently when the system is
limiting wheel spin.
gis 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 and release
g. The
traction control system warning light
will come on. To turn the traction
control system back on, press
g
again or increase vehicle speed and
the system will automatically turn
back on. The traction control system
warning light will go off. See Traction
Control System (TCS) Warning Light
on page 4-19 for more information. To turn off both the traction control
system and StabiliTrak, press and
hold
gwhile the vehicle is stopped.
The traction control system warning
light and the VSC OFF light will come
on. To turn the systems back on,
press
gagain. If both systems are
turned off, they will not turn back on
automatically when vehicle speed
increases.
If the VSC OFF light flashes, there
is a problem in the traction control
system or StabiliTrak.
Adding non-GM accessories can
affect your vehicle’s performance.
See Accessories and Modi cations
on page 9-3 for more information.
8-34 Driving and Operating

StabiliTrak System
The vehicle has the StabiliTrak
system which combines antilock
brake, traction and stability control
systems. 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.
This system activates when the
vehicle speed reaches or exceeds
15 km/h (9 mph), and deactivates
when the vehicle speed reduces to
below 15 km/h (9 mph).
A sound may be heard 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 problem.If the vehicle is going to skid during
driving, the traction control system
warning light flashes and an alarm
sounds intermittently. Adjust your
driving accordingly.
To turn off both the traction control
system and StabiliTrak, press and
hold
gwhile the vehicle is stopped.
The traction control system warning
light and the VSC OFF light will come
on. To turn the systems back on,
press
gagain. If both systems are
turned off, they will not turn back on
automatically when vehicle speed
increases.
If the VSC OFF light flashes, there
is a problem in the traction control
system or StabiliTrak.
Driving and Operating 8-35

What to Use
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL®
coolant, which will not damage
aluminum parts. If this coolant
mixture is used, nothing else
needs to be added.
{CAUTION
Adding only plain water to the
cooling system can be dangerous.
Plain water, or some other liquid
such as alcohol, can boil before
the proper coolant mixture will.
The vehicle’s coolant warning
system is set for the proper coolant
mixture. With plain water or the
wrong mixture, the engine could
get too hot but would not get the
overheat warning. The engine
could catch fire and you or
others could be burned. Use a
50/50 mixture of clean, drinkable
water and DEX-COOL
®coolant.Notice:
If an improper coolant
mixture is used, the engine could
overheat and be badly damaged.
The repair cost would not be
covered by the vehicle warranty.
Too much water in the mixture
can freeze and crack the engine,
radiator, heater core, and other
parts.
•Gives freezing protection down to
−34°F (− 38°C).
•Gives boiling protection up to
265°F (129°C).
•Protects against rust and
corrosion.
•Helps keep the proper engine
temperature.
•Lets the warning lights and gages
work as they should.
Notice: Using coolant other than
DEX-COOL can cause premature
engine, heater core or radiator
corrosion. In addition, the engine
coolant may require changing sooner, at 30,000 miles
(50 000 km) or 24 months,
whichever occurs rst. Any
repairs would not be covered
by the vehicle warranty. Always
use DEX-COOL (silicate-free)
coolant in your vehicle.
Checking Coolant
The vehicle must be on a level
surface. When the engine is cold,
the coolant level should be at LOW,
or a little higher. When the engine
is warm, the level should be up to
FULL, or a little higher. If it is not,
there could be a leak at the pressure
cap or in the radiator hoses, heater
hoses, radiator, water pump, or
somewhere else in the cooling
system.
See
Engine Compartment Overview
on page 9-6 for the location of
the coolant recovery tank.
9-20 Vehicle Care

Brakes
This vehicle has disc brakes.
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be
heard all the time the vehicle is
moving, except when applying the
brake pedal firmly.
{CAUTION
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
an accident. When the brake wear
warning sound is heard, have the
vehicle serviced.
Notice: Continuing to drive
with worn-out brake pads could
result in costly brake repair. Some driving conditions or climates
can cause a brake squeal when
the brakes are first applied or
lightly applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications in
Capacities and
Speci cations on page 11-2 .
Brake linings should always be
replaced as complete axle sets.
Brake Pedal Travel
See your dealer/retailer if the brake
pedal does not return to normal
height, or if there is a rapid increase
in pedal travel. This could be a sign
that brake service might be required.
Brake Adjustment
Every time the brakes are applied,
with or without the vehicle moving,
the brakes adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is
complex. Its many parts have to be
of top quality and work well together
if the vehicle is to have really good
braking. The vehicle was designed
and tested with top-quality brake
parts. When parts of the braking
system are replaced, be sure to get
new, approved replacement parts.
If this is not done, the brakes might
not work properly. For example,
installing disc brake pads that are
wrong for the vehicle, can change
the balance between the front and
rear brakes — for the worse. The
braking performance expected can
change in many other ways if the
wrong replacement brake parts are
installed.
9-26 Vehicle Care

Brake Fluid
The brake master cylinder and, on
manual transmission vehicles, the
clutch hydraulic system use the
same reservoir. The reservoir is filled
with DOT-3 brake fluid as indicated
on the reservoir cap. SeeEngine
Compartment Overview on page 9-6
for the location of the reservoir. There are only two reasons why the
brake fluid level in the reservoir
might go down:
•The brake fluid level goes down
because of normal brake lining
wear. When new linings are
installed, the fluid level goes
back up.
•A fluid leak in the brake and/or
clutch hydraulic system can also
cause a low fluid level. Have the
brake and/or clutch hydraulic
system fixed, since a leak means
that sooner or later the brakes
and/or clutch will not work well.
Do not top off the brake/clutch fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are installed. Add or remove brake fluid, as
necessary, only when work is done
on the brake/clutch hydraulic system.
{CAUTION
If too much brake fluid is added,
it can spill on the engine and burn,
if the engine is hot enough. You
or others could be burned, and
the vehicle could be damaged.
Add brake fluid only when work
is done on the brake hydraulic
system.
When the brake fluid falls to a low
level, the brake warning light comes
on. See Brake System Warning
Light on page 4-17.
Vehicle Care 9-27