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 Warning
Light on page 3-51.
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 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 faster than any
driver could. The computer is programmed to make the
most of available tire and road conditions. 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 always decrease
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
a motor or clicking noise and feel the brake pedal
move a little during a stop, 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.
5-5
The system comes on automatically whenever you start
your vehicle. To help maintain directional control of
the vehicle, you should always leave the system on.
You can turn the system off if you ever need to. If you
turn the StabiliTrak
®system off, the Traction Control
System will also be turned off. Adjust your driving
accordingly.
To turn the system off,
press and hold the front
part of the traction
control button on the
console for ve seconds
with the vehicle stopped.
You can turn the system back on at any time by pressing
the button. The DIC will display the appropriate message
when you push the button, either TRAC/STABILITRAK
ON or TRAC/STABILITRAK OFF.
Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
Magnetic Speed Variable Assist
Steering
Your vehicle has a steering system that continuously
adjusts the effort you feel when steering at all vehicle
speeds. It provides ease when parking, yet a rm,
solid feel at highway speeds.
Steering Tips
It is important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned on
the news happen on curves. Here is why:
Experienced driver or beginner, each of us is subject
to the same laws of physics when driving on curves.
The traction of the tires against the road surface makes
it possible for the vehicle to change its path when
you turn the front wheels. If there is no traction, inertia
will keep the vehicle going in the same direction.
If you have ever tried to steer a vehicle on wet ice,
you will understand this.
5-9
The traction you can get in a curve depends on the
condition of the tires and the road surface, the angle at
which the curve is banked, and your speed. While
you are in a curve, speed is the one factor you
can control.
Suppose you are steering through a sharp curve.
Then you suddenly accelerate. Both control
systems — steering and acceleration — have to do
their work where the tires meet the road. Adding
the sudden acceleration can demand too much of those
places. You can lose control. SeeTraction Control
System (TCS) on page 5-6.
What should you do if this ever happens? Ease up on
the accelerator pedal, steer the vehicle the way you
want it to go, and slow down.
Speed limit signs near curves warn that you should
adjust your speed. Of course, the posted speeds
are based on good weather and road conditions.
Under less favorable conditions you will want to go
slower.
If you need to reduce your speed as you approach a
curve, do it before you enter the curve, while the
front wheels are straight ahead.Try to adjust your speed so you can drive through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until you are out of the curve, and then
accelerate gently into the straightaway.
Adding non-dealer/non-retailer accessories can affect
your vehicle’s performance. SeeAccessories and
Modifications on page 6-3.
Steering in Emergencies
There are times when steering can be more effective
than braking. For example, you come over a hill and nd
a truck stopped in your lane, or a car suddenly pulls
out from nowhere, or a child darts out from between
parked cars and stops right in front of you. You can
avoid these problems by braking — if you can stop in
time. But sometimes you cannot; there is not room.
That is the time for evasive action — steering around
the problem.
Your vehicle can perform very well in emergencies
like these. First apply the brakes. SeeBraking on
page 5-4. It is better to remove as much speed as you
can from a possible collision. Then steer around the
problem, to the left or right depending on the space
available.
5-10
An emergency like this requires close attention and a
quick decision. If you are holding the steering wheel at
the recommended 9 and 3 o’clock positions, you
can turn it a full 180 degrees very quickly without
removing either hand. But you have to act fast, steer
quickly, and just as quickly straighten the wheel
once you have avoided the object.
The fact that such emergency situations are always
possible is a good reason to practice defensive driving
at all times and wear safety belts properly.
Off-Road Recovery
You may nd that your vehicle’s right wheels have
dropped off the edge of a road onto the shoulder while
you are driving.
If the level of the shoulder is only slightly below the
pavement, recovery should be fairly easy. Ease off the
accelerator and then, if there is nothing in the way,
steer so that your vehicle straddles the edge of the
pavement. You can turn the steering wheel up to
one-quarter turn until the right front tire contacts the
pavement edge. Then turn the steering wheel to
go straight down the roadway.
5-11
Passing
Passing another vehicle on a two-lane road can be
dangerous. To reduce the risk of danger while passing,
we suggest the following tips:
Look down the road, to the sides, and to crossroads
for situations that might affect a successful pass.
If in doubt, wait.
Watch for traffic signs, pavement markings, and
lines that could indicate a turn or an intersection.
Never cross a solid or double-solid line on your side
of the lane.
Do not get too close to the vehicle you want to
pass. Doing so can reduce your visibility.
Wait your turn to pass a slow vehicle.
When you are being passed, ease to the right.
Loss of Control
Let us review what driving experts say about what
happens when the three control systems — brakes,
steering, and acceleration — do not have enough friction
where the tires meet the road to do what the driver
has asked.
In any emergency, do not give up. Keep trying to steer
and constantly seek an escape route or area of less
danger.
Skidding
In a skid, a driver can lose control of the vehicle.
Defensive drivers avoid most skids by taking reasonable
care suited to existing conditions, and by not overdriving
those conditions. But skids are always possible.
The three types of skids correspond to your vehicle’s
three control systems. In the braking skid, the wheels
are not rolling. In the steering or cornering skid, too
much speed or steering in a curve causes tires to slip
and lose cornering force. And in the acceleration skid,
too much throttle causes the driving wheels to spin.
A cornering skid is best handled by easing your foot off
the accelerator pedal.
Remember: Any traction control system helps avoid only
the acceleration skid. If your traction control system is
off, then an acceleration skid is also best handled
by easing your foot off the accelerator pedal.
If your vehicle starts to slide, ease your foot off the
accelerator pedal and quickly steer the way you want
the vehicle to go. If you start steering quickly enough,
your vehicle may straighten out. Always be ready
for a second skid if it occurs.
5-12
Rocking Your Vehicle to Get It Out
First, turn the steering wheel left and right to clear
the area around the front wheels. Turn off any traction
or stability system. SeeTraction Control System
(TCS) on page 5-6andStabiliTrak
®System on
page 5-8. Then shift back and forth between
REVERSE (R) and a forward gear, spinning the wheels
as little as possible. To prevent transmission wear,
wait until the wheels stop spinning before shifting gears.
Release the accelerator pedal while you shift, and
press lightly on the accelerator pedal when the
transmission is in gear. By slowly spinning the wheels in
the forward and reverse directions, you will cause a
rocking motion that could free your vehicle. If that does
not get your vehicle out after a few tries, it might
need to be towed out. If your vehicle does need to be
towed out, seeTowing Your Vehicle on page 5-27.
Loading Your Vehicle
It is very important to know how much weight your
vehicle can carry. This weight is called the
vehicle capacity weight and includes the weight of
all occupants, cargo, and all nonfactory-installed
options. Two labels on your vehicle show how
much weight it may properly carry, the Tire and
Loading Information label and the Certi cation
label.
{CAUTION:
Do not load your vehicle any heavier than
the Gross Vehicle Weight Rating (GVWR),
or either the maximum front or rear Gross
Axle Weight Rating (GAWR). If you do,
parts on your vehicle can break, and it
can change the way your vehicle handles.
These could cause you to lose control
and crash. Also, overloading can shorten
the life of your vehicle.
5-22
Fuses Usage
FUSE PULLER Fuse Puller
REVERSE
LAMPReverse Lamp
RUN/CRANK Starter/Crank
PRK/BRK
SOL AParking Brake Solenoid A
REVERSE
LAMPSReverse Lamps
BTSI SOL/
COL LOCKBTSI Solenoid, Column Lock
EMPTY Not Used
EMPTY Not Used
GMLAN
DEVICESGMLAN Devices
RPA/H/C
SEAT/WPR
RELAYSRear Park Aid, Heated/Cooled
Seats, Windshield Wiper Relays
DR LOCKS Door Locks
ECM Engine Control Module
INTERIOR
LIGHTSInterior LightsFuses Usage
SDM/PSIR SW Airbags
EMPTY Not Used
ONSTAR OnStar
®
ACCA/DRIV
DR SWAdaptive Cruise Control (ACC),
Driver Door Switch
TILT/TELE
SW/MEM SEAT
MOD/TOP SWPower Tilt Wheel, Telescopic
Steering Column, Memory Seat,
Driver Seat Switch, Retractable
Hardtop Switch
IGN SW/INTR
SNSRIgnition Switch, Intrusion Sensor
STOP LAMP Stop Lamp
ISRVM/HVACInside Rearview Mirror, Climate
Control System, Column Lock,
Power Sounder
CLSTR/HUDInstrument Panel Cluster, Head-Up
Display (HUD)
RADIO/
S-BAND/VICSRadio, S-Band, CD Changer
TUTD SW/
STRG COL SWTap-Up/Tap-Down Switch
HVAC/PWR
SNDClimate Control System, Power
Sounder
6-92
Fuses Usage
REAR
FOG/ALDLRear Fog Lamps, Diagnostic Link
Connector
PWR FLDG
MIR-EXT/RETPower Folding Mirror
DECK LID
CLOSE/
PRK/BRK BTrunk Close Button, Parking Brake
Solenoid B
PWR SEAT Power Seats
DR CNTRLS Door Controls
RUN/ACSRY
PWRRun, Accessory Power
EMPTY Not Used
EMPTY Not Used
WPR DWELL Rainsense™
STR WHL
DIMMINGSteering Wheel Control Button
Lights
PWR LUMBAR
LH/RHPower Lumbar
HTD/SEAT RH Passenger Side Heated Seat
HTD/SEAT LH Driver Side Heated SeatFuses Usage
COLUMN
LK MDL
(EUROPE)Not Used
FOLDING
TOP/TRUNK
LATCHRetractable Hardtop, Trunk Latch
AUX PWR Auxiliary Power
CIGAR LTR Cigar Lighter
Relays Usage
PRK/BRK
HOLDPark Brake Hold
PRK/BRK
RELEASEPark Brake Release
F/MIR
RETRACT
(EXPORT)Not Used
FOG RR
(EUROPE)Not Used
F/MIR EXTEND
(EXPORT)Not Used
FUEL DR Fuel Door
6-93