2009 GMC ENVOY rear view mirror

Seats and Restraint System............................. 1-1
Front Seats
............................................... 1-2
Rear Seats
..............................................1-11
Safety Belts
.............................................1-13
Child Restraints
.......................................1-32
Airbag System
.........................................1-55
Restraint System Check
............................1-70
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-7
Windows
.................................................2-13
Theft-Deterrent Systems
............................2-16
Starting and Operating Your Vehicle
...........2-20
Mirrors
....................................................2-39
OnStar
®System
......................................2-43
Universal Home Remote System
................2-46
Storage Areas
.........................................2-51
Sunroof
..................................................2-55
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-19
Warning Lights, Gages, and Indicators
........3-27
Driver Information Center (DIC)
..................3-47
Audio System(s)
.......................................3-62Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-38
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Rear Axle
...............................................5-43
Four-Wheel Drive
.....................................5-44
Front Axle
...............................................5-44
Headlamp Aiming
.....................................5-45
Bulb Replacement
....................................5-46
Windshield Wiper Blade Replacement
.........5-50
Tires
......................................................5-53
Appearance Care
...................................5-103
Vehicle Identication
...............................5-111
Electrical System
....................................5-112
Capacities and Specications
...................5-120
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Vehicle Data Recording and Privacy
...........7-16
Index................................................................ 1
2009 GMC Envoy and Envoy Denali Owner ManualM

Passenger Sensing System
The vehicle has a passenger sensing system for the right
front passenger position. The passenger airbag status
indicator will be visible in the rearview mirror when the
vehicle is started.
The words ON and OFF, or the symbol for on and off, will
be visible during the system check. When the system
check is complete, either the word ON or OFF, or the
symbol for on or off, will be visible. SeePassenger Airbag
Status Indicator on page 3-32.The passenger sensing system will turn off the right
front passenger frontal airbag under certain conditions.
The driver airbags and roof-rail airbags are not
affected by the passenger sensing system.
The passenger sensing system works with sensors that
are part of the right front passenger seat. The sensors
are designed to detect the presence of a properly-seated
occupant and determine if the right front passenger
frontal airbag should be enabled (may inate) or not.
According to accident statistics, children are safer when
properly secured in a rear seat in the correct child
restraint for their weight and size.
We recommend that children be secured in a rear seat,
including: an infant or a child riding in a rear-facing
child restraint; a child riding in a forward-facing child
seat; an older child riding in a booster seat; and children,
who are large enough, using safety belts.
A label on the sun visor says, “Never put a rear-facing
child seat in the front.” This is because the risk to
the rear-facing child is so great, if the airbag deploys. United States
Canada
1-64

Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to or change
about the vehicle that could keep the airbags
from working properly?
A:Yes. If you add things that change your vehicle’s
frame, bumper system, height, front end or side
sheet metal, they may keep the airbag system from
working properly. Changing or moving any parts of
the front seats, safety belts, the airbag sensing and
diagnostic module, steering wheel, instrument panel,
roof-rail airbag modules, ceiling headliner or pillar
garnish trim, rearview mirror, front sensors, rollover
sensor module, or airbag wiring can affect the
operation of the airbag system.
In addition, your vehicle has a passenger sensing
system for the right front passenger’s position, which
includes sensors that are part of the passenger’s
seat. The passenger sensing system may not
operate properly if the original seat trim is replaced
with non-GM covers, upholstery or trim, or with GM
covers, upholstery or trim designed for a different
vehicle. Any object, such as an aftermarket seat
heater or a comfort enhancing pad or device,
installed under or on top of the seat fabric, could alsointerfere with the operation of the passenger sensing
system. This could either prevent proper deployment
of the passenger airbag(s) or prevent the passenger
sensing system from properly turning off the
passenger airbag(s). SeePassenger Sensing
System on page 1-64.
If you have any questions about this, you should
contact Customer Assistance before you modify
your vehicle. The phone numbers and addresses for
Customer Assistance are in Step Two of the
Customer Satisfaction Procedure in this manual.
SeeCustomer Satisfaction Procedure on page 7-2.
If your vehicle has rollover roof-rail airbags, see
Different Size Tires and Wheels on page 5-72
for additional important information.
Q:Because I have a disability, I have to get my
vehicle modied. How can I nd out whether this
will affect my airbag system?
A:If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. SeeCustomer
Satisfaction Procedure on page 7-2.
In addition, your dealer/retailer and the service manual
have information about the location of the airbag sensors,
sensing and diagnostic module and airbag wiring.
1-69

Keys...............................................................2-3
Remote Keyless Entry (RKE) System................2-4
Remote Keyless Entry (RKE) System
Operation...................................................2-5
Doors and Locks.............................................2-7
Door Locks....................................................2-7
Power Door Locks..........................................2-8
Delayed Locking.............................................2-8
Programmable Automatic Door Locks................2-9
Rear Door Security Locks..............................2-11
Lockout Protection........................................2-11
Liftgate/Liftglass............................................2-12
Windows........................................................2-13
Power Windows............................................2-14
Sun Visors...................................................2-15
Theft-Deterrent Systems..................................2-16
Content Theft-Deterrent.................................2-16
Passlock
®(U.S. Only)...................................2-17
PASS-Key®III+ Electronic Immobilizer.............2-18
PASS-Key®III+ Electronic Immobilizer
Operation (Canada Only)............................2-18Starting and Operating Your Vehicle................2-20
New Vehicle Break-In....................................2-20
Ignition Positions..........................................2-21
Retained Accessory Power (RAP)...................2-22
Starting the Engine.......................................2-22
Adjustable Throttle and Brake Pedal................2-23
Engine Coolant Heater..................................2-24
Active Fuel Management™.............................2-25
Automatic Transmission Operation...................2-25
Four-Wheel Drive..........................................2-28
Parking Brake..............................................2-33
Shifting Into Park..........................................2-34
Shifting Out of Park......................................2-36
Parking Over Things That Burn.......................2-36
Engine Exhaust............................................2-37
Running the Vehicle While Parked..................2-38
Mirrors...........................................................2-39
Manual Rearview Mirror.................................2-39
Automatic Dimming Rearview Mirror................2-39
Compass.....................................................2-40
Outside Manual Mirrors..................................2-41
Outside Power Mirrors...................................2-42
Outside Convex Mirror...................................2-42
Outside Heated Mirrors..................................2-42
Section 2 Features and Controls
2-1

Mirrors
Manual Rearview Mirror
Adjust the mirror to see clearly behind your vehicle.
Hold the mirror in the center to move it up or down and
side to side. The day/night adjustment lets you adjust the
mirror to avoid glare from the lamps behind you. Move the
lever to the right for nighttime use and to the left for
daytime use.
Vehicles with OnStar
®have three control buttons located
at the bottom of the mirror. See your dealer/retailer for
more information on the system and how to subscribe to
OnStar
®. SeeOnStar®System on page 2-43for more
information on the services OnStar®provides.
Automatic Dimming Rearview Mirror
The vehicle may have an automatic-dimming rearview
mirror with a compass and/or temperature display.
SeeCompass on page 2-40for more information about
the compass display. See “Temperature Display”
after in this section.
Vehicles with OnStar
®have three control buttons
located at the bottom of the mirror. See your
dealer/retailer for more information on the system andhow to subscribe to OnStar
®. SeeOnStar®System on
page 2-43for more information on the services
OnStar
®provides.
O(On/Off):Press to turn the dimming feature on
or off.
TEMP (Temperature):Press to turn the temperature
display on or off.
Automatic Dimming Mirror Operation
Automatic dimming reduces the glare of lights from
behind the vehicle. The dimming feature comes on and
the indicator light illuminates each time the vehicle is
started.
Temperature Display
PressOor depending on the mirror, press TEMP to
turn the temperature display on or off.
To adjust between Fahrenheit and Celsius:
1. Press and hold
Oor depending on the mirror,
press TEMP until either a ashing F or C appears.
2. Press
Oor TEMP again to change the display to
the desired unit of measurement. After
approximately four seconds of inactivity, the new
unit locks in and the display returns.
2-39

To adjust for compass variance:
1. Find your current location and variance zone
number on the following zone map.
2. Press and hold
Oor depending on the mirror,
press COMP until a Z and/or a zone number
displays. The compass is now in zone mode.3. Keep pressing
Ountil the desired zone number
displays. Release the button. After several seconds
of inactivity, the new zone number locks in and the
compass display returns.
4. Calibrate the compass as previously described.
Outside Manual Mirrors
Adjust the outside rearview mirrors to see a little of the
side of your vehicle, and the area beside your vehicle.
Manually fold the mirrors inward to prevent damage
when going through an automatic car wash. To
fold, push the mirror toward the vehicle. Push the mirror
outward, to return to its original position.
2-41

Passenger Airbag Status Indicator
The vehicle has the passenger sensing system.
SeePassenger Sensing System on page 1-64for
important safety information. The rearview mirror has a
passenger airbag status indicator.When the vehicle is started, the passenger airbag status
indicator will light ON and OFF, or the symbol for on
and off, for several seconds as a system check. Then,
after several more seconds, the status indicator will
light either ON or OFF, or either the on or off symbol to
let you know the status of the right front passenger
frontal airbag.
If the word ON or the on symbol is lit on the passenger
airbag status indicator, it means that the right front
passenger frontal airbag is enabled (may inate).
If the word OFF or the off symbol is lit on the airbag
status indicator, it means that the passenger sensing
system has turned off the right front passenger
frontal airbag. United States
Canada
3-32

Driving at Night
Night driving is more dangerous than day driving because
some drivers are likely to be impaired — by alcohol or
drugs, with night vision problems, or by fatigue.
Night driving tips include:
Drive defensively.
Do not drink and drive.
Reduce headlamp glare by adjusting the inside
rearview mirror.
Slow down and keep more space between you and
other vehicles because headlamps can only light up
so much road ahead.
Watch for animals.
When tired, pull off the road.
Do not wear sunglasses.
Avoid staring directly into approaching headlamps.
Keep the windshield and all glass on your vehicle
clean — inside and out.
Keep your eyes moving, especially during turns or
curves.
No one can see as well at night as in the daytime.
But, as we get older, these differences increase.
A 50-year-old driver might need at least twice as much
light to see the same thing at night as a 20-year-old.
Driving in Rain and on Wet Roads
Rain and wet roads can reduce vehicle traction
and affect your ability to stop and accelerate. Always
drive slower in these types of driving conditions
and avoid driving through large puddles and
deep-standing or owing water.
{CAUTION:
Wet brakes can cause crashes. They might not
work as well in a quick stop and could cause pulling
to one side. You could lose control of the vehicle.
After driving through a large puddle of water or a
car/vehicle wash, lightly apply the brake pedal until
the brakes work normally.
Flowing or rushing water creates strong forces.
Driving through owing water could cause your
vehicle to be carried away. If this happens, you and
other vehicle occupants could drown. Do not ignore
police warnings and be very cautious about trying to
drive through owing water.
4-25