change wheel GMC ENVOY XL 2006 Owners Manual

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Rainsense™ Wipers.......................................3-9
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-10
Headlamp Washer........................................3-11
Cruise Control..............................................3-11
Headlamps..................................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-15
Automatic Headlamp System..........................3-16
Fog Lamps ..................................................3-17
Instrument Panel Brightness...........................3-17
Dome Lamps ...............................................3-17
Dome Lamp Override....................................3-18
Entry Lighting...............................................3-18
Exit Lighting.................................................3-18Reading Lamps............................................3-18
Battery Run-Down Protection..........................3-19
Accessory Power Outlet(s).............................3-19
Ashtray(s) and Cigarette Lighter......................3-20
Climate Controls............................................3-20
Dual Climate Control System..........................3-20
Dual Automatic Climate Control System...........3-23
Outlet Adjustment.........................................3-27
Rear Climate Control System.........................3-28
Warning Lights, Gages, and Indicators............3-31
Instrument Panel Cluster................................3-32
Speedometer and Odometer...........................3-33
Trip Odometer..............................................3-33
Tachometer.................................................3-33
Safety Belt Reminder Light.............................3-34
Passenger Safety Belt Reminder Light.............3-34
Airbag Readiness Light..................................3-35
Passenger Airbag Status Indicator...................3-36
Charging System Light..................................3-38
Voltmeter Gage............................................3-38
Brake System Warning Light..........................3-39
Anti-Lock Brake System Warning Light.............3-40
StabiliTrak
®Service Light...............................3-40
StabiliTrak®Indicator Light..............................3-41
Section 3 Instrument Panel
3-1

Engine Coolant Temperature Gage..................3-41
Malfunction Indicator Lamp.............................3-42
Oil Pressure Gage........................................3-45
Change Engine Oil Light................................3-46
Security Light...............................................3-46
Cruise Control Light......................................3-47
Reduced Engine Power Light.........................3-47
Highbeam On Light.......................................3-47
Service Four-Wheel Drive Warning Light..........3-48
Check Gages Warning Light...........................3-48
Gate Ajar Light.............................................3-48
Fuel Gage...................................................3-49
Low Fuel Warning Light.................................3-49
Check Gas Cap Light....................................3-49
Driver Information Center (DIC).......................3-50
DIC Operation and Displays...........................3-51
DIC Warnings and Messages.........................3-54
DIC Vehicle Customization.............................3-60Audio System(s).............................................3-66
Setting the Time...........................................3-68
Radio with CD (Base)...................................3-68
Radio with CD (MP3)....................................3-80
Radio with Cassette and CD..........................3-96
Radio with Six-Disc CD................................3-110
Navigation/Radio System..............................3-124
Rear Seat Entertainment System...................3-124
Rear Seat Audio (RSA)................................3-137
Theft-Deterrent Feature................................3-139
Audio Steering Wheel Controls......................3-139
Radio Reception.........................................3-140
Care of the Cassette Tape Player.................3-141
Care of Your CDs and DVDs........................3-142
Care of the CD and DVD Player...................3-142
Fixed Mast Antenna....................................3-143
XM™ Satellite Radio Antenna System............3-143
Chime Level Adjustment...............................3-143
Section 3 Instrument Panel
3-2

With cruise control, you can maintain a speed of about
25 mph (40 km/h) or more without keeping your foot
on the accelerator. This can really help on long
trips. Cruise control does not work at speeds below
about 25 mph (40 km/h).
If you apply your brakes, the cruise control will shut off.
{CAUTION:
Cruise control can be dangerous where you
cannot drive safely at a steady speed. So, do
not use your cruise control on winding roads
or in heavy traffic.
Cruise control can be dangerous on slippery
roads. On such roads, fast changes in tire
traction can cause excessive wheel slip, and
you could lose control. Do not use cruise
control on slippery roads.
{CAUTION:
If you leave your cruise control on when you
are not using cruise, you might hit a button
and go into cruise when you do not want to.
You could be startled and even lose control.
Keep the cruise control switch off until you
want to use cruise control.
Setting Cruise Control
1. Move the cruise control switch to on.
2. Get up to the speed you want.
3. Press the set button at the end of the lever and
release it.
4. Take your foot off the accelerator pedal. The
accelerator pedal will not go down.
3-12

Rear Climate Control System
Regular Wheelbase
Your vehicle has one of the following rear climate
control systems. With either of these systems, the rear
climate controls will be disabled when the front
climate control system is in defrost. This occurs to
provide maximum airow to clear the windshield.The temperature of the air coming through the rear
outlets is determined by the front passenger’s
temperature setting. Press the PWR button to turn the
rear climate controls on and off. Use the mode knob
to change the direction of airow (upper, bi-level or oor)
to the rear seat area.
H(Panel):When panel mode is selected, the rear
system will distribute air from the four headliner outlets.
)(Bi-level):When bi-level mode is selected, the
rear system will distribute air from the four headliner
outlets, the second seat side oor outlets, and the third
seat oor outlet.
6(Floor):When oor mode is selected, the rear
system will distribute air from the second seat side oor
outlets and the third seat oor outlet.
3-28

If your vehicle has the rear seat audio system, the lower
buttons are used to adjust the rear seat climate
control system. The temperature of the air coming
through the rear outlets is determined by the front
passenger’s temperature setting.
P(On/Off):Press this button to turn the rear climate
controls on or off.
z9y(Fan):Press this button to adjust the
fan speed.
z\y(Mode):Press this button to change the
direction of airow (panel, bi-level or oor) to the
rear seat area.
The rear control will only turn on if the front is on and
not in defrost mode.
Extended Wheelbase
To operate the rear air conditioning system, the front air
conditioning system must be on. With the front air
conditioning system off, the rear system controls can
only be used to circulate air in the rear of the vehicle.
To adjust the airow
speed, turn the fan knob
(driver override switch),
located on the oor
console to 1, 2, or 3.
The rear mode and
temperature position will
now mimic the front control
system mode and
passenger side
temperature.
To activate the second row seat controls in the following
systems, set the fan knob, located on the front
console, to R.
3-29

DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed by the driver to correct the
condition. More than one message may appear at
one time. They will appear one after the other. Some
messages may not require immediate action, but
you should press the trip stem on the instrument panel
cluster to acknowledge that you received the message
and to clear it from the display. Pressing any of the DIC
steering wheel buttons — trip information, fuel
information, customization, or select button — will also
acknowledge any warnings or service messages.
Some messages cannot be cleared from the display
because they are more urgent. These messages require
action before they can be removed from the DIC
display. The following are the possible messages that
can be displayed and some information about them.
BATTERY NOT CHARGING
If the battery is not charging during operation, this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked by your GM dealer as soon as possible.
SeeVoltmeter Gage on page 3-38. Press the select
button to acknowledge this message and clear it from
the DIC display.
CHANGE ENGINE OIL
This message is displayed when the engine oil needs to
be changed and service is required for your vehicle.
SeeScheduled Maintenance on page 6-4andEngine
Oil on page 5-16for more information. Also seeEngine
Oil Life System on page 5-20for information on how
to reset the message. This message will clear itself after
10 seconds until the next ignition cycle.
3-54

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 front wheel
and at both rear wheels.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, your computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.
4-8

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.
Locking Rear Axle
If your vehicle has this feature, your locking 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 StabiliTrak®, Electronic
Stability Control (ESC) which combines antilock
brake, traction and stability control systems and helps
the driver maintain directional control of the vehicle
in most driving conditions.
Traction control activates when the controller senses
wheel spin. StabiliTrak
®will selectively apply the brakes
and reduce engine torque to help regain traction.
Stability control activates when the controller senses a
discrepancy between your intended path and the
direction the vehicle is travelling. StabiliTrak
®selectively
applies braking pressure at any one of the vehicle’s
brakes to help guide the vehicle in the direction which
you are steering.
When you rst start your vehicle and begin to drive
away, the system performs several diagnostic checks to
insure there are no problems. You may hear or feel
the system working. This is normal and does not mean
there is a problem with your vehicle. If driving
conditions delay system initialization, the STABILITRAK
NOT READY message may be displayed. If this is
the case, your vehicle does not need servicing.
For more information on the stability messages, see
DIC Warnings and Messages on page 3-54.
4-9

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.
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.
The traction you can get in a curve depends on the
condition of your 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.
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 your 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-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modications
on page 5-3.
4-14

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, your 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.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.
Of course, traction is reduced when water, snow, ice,
gravel, or other material is on the road. For safety, you
will want to slow down and adjust your driving to
these conditions. It is important to slow down on slippery
surfaces because stopping distance will be longer and
vehicle control more limited.
While driving on a surface with reduced traction, try your
best to avoid sudden steering, acceleration, or braking,
including reducing vehicle speed by shifting to a lower
gear. Any sudden changes could cause the tires to slide.
You may not realize the surface is slippery until your
vehicle is skidding. Learn to recognize warning
clues — such as enough water, ice, or packed snow on
the road to make a mirrored surface — and slow down
when you have any doubt.
Remember: Any Anti-Lock Brake System (ABS) helps
avoid only the braking skid.
4-18