2007 GMC ENVOY tow

Seats and Restraint Systems
....................... 7
Front Seats
.............................................. 8
Rear Seats
............................................. 18
Safety Belts
............................................ 20
Child Restraints
...................................... 42
Airbag System
........................................ 71
Restraint System Check
......................... 90
Features and Controls
................................ 93
Keys
....................................................... 95
Doors and Locks
.................................. 100
Windows
............................................... 107
Theft-Deterrent Systems
....................... 110
Starting and Operating Your Vehicle
..... 112
Mirrors
.................................................. 133
OnStar
®System
................................... 145
Universal Home Remote System
.......... 149
Storage Areas
...................................... 160
Sunroof
................................................ 164Instrument Panel
....................................... 165
Instrument Panel Overview
................... 168
Climate Controls
................................... 186
Warning Lights, Gages, and
Indicators
.......................................... 197
Driver Information Center (DIC)
............ 218
Audio System(s)
................................... 236
Driving Your Vehicle
................................. 301
Your Driving, the Road, and
Your Vehicle
..................................... 302
Towing
................................................. 354
Service and Appearance Care
.................. 377
Service
................................................. 380
Fuel
...................................................... 382
Checking Things Under the Hood
......... 388
Rear Axle
............................................. 428
Four-Wheel Drive
.................................. 428
Front Axle
............................................ 429
2007 GMC Envoy and Envoy Denali Owner ManualM
1

Manual Lumbar
If your vehicle has
this feature, there is
a knob located on
the outboard side of
the driver’s seat.
Turn the top of the knob toward the front of the
vehicle to increase lumbar support. Turn the top
of the knob toward the rear of the vehicle to
decrease lumbar support.
Power Lumbar
Your vehicle may have power lumbar on the
driver’s and front passenger’s seats.
The seatback lumbar
support can be adjusted
by moving the control
located on the outboard
side of the seat
cushions.
To increase or decrease support, hold the control
forward or rearward.
Keep in mind that as your seating position
changes, as it may during long trips, so should the
position of your lumbar support. Adjust the seat
as needed.
10

To return the seatback to an upright position, do
the following:
1. Lift the lever fully without applying pressure
to the seatback and the seatback will return
to the upright position.
2. Push and pull on the seatback to make sure
it is locked.Power Reclining Seatbacks
If your seats have
power reclining
seatbacks, use the
vertical power
seat control located
on the outboard side
of the seat(s).
To recline the seatback, press the control
toward the rear of the vehicle.
To raise the seatback, press the control
toward the front of the vehicle.
15

Rear Seats
Rear Seat Operation
Your vehicle has ip and fold second row seats
which provide additional cargo space.
To ip and fold the seat(s), do the following:
1. Pull up on the loop located where the seat
cushion meets the seatback and ip the
seat cushion forward.Notice:Folding a rear seat with the safety
belts still fastened may cause damage to the
seat or the safety belts. Always unbuckle
the safety belts and return them to their normal
stowed position before folding a rear seat.
2. Lift the lever,
located on the
outboard side of
the seatback,
and fold the
seatback forward.
The head restraint will automatically fold out
of the way as the seatback is folded down.
18

{CAUTION:
Never do this.
Here two children are wearing the same
belt. The belt can not properly spread the
impact forces. In a crash, the two children
can be crushed together and seriously
injured. A belt must be used by only one
person at a time.
Q:What if a child is wearing a lap-shoulder
belt, but the child is so small that the
shoulder belt is very close to the child’s
face or neck?
A:If the child is sitting in a seat next to a
window, move the child toward the center
of the vehicle. Also seeRear Safety Belt
Comfort Guides on page 38. If the child is
sitting in the center rear seat passenger
position, move the child toward the safety
belt buckle. In either case, be sure that
the shoulder belt still is on the child’s shoulder,
so that in a crash the child’s upper body
would have the restraint that belts provide.
43

{CAUTION:
The body structure of a young child is
quite unlike that of an adult or older child,
for whom the safety belts are designed.
A young child’s hip bones are still so
small that the vehicle’s regular safety belt
may not remain low on the hip bones, as
it should. Instead, it may settle up around
the child’s abdomen. In a crash, the belt
would apply force on a body area that is
unprotected by any bony structure. This
alone could cause serious or fatal injuries.
Young children always should be secured
in appropriate child restraints.
Child Restraint Systems
An infant car bed (A), a special bed made for use
in a motor vehicle, is an infant restraint system
designed to restrain or position a child on a
continuous at surface. Make sure that the infant’s
head rests toward the center of the vehicle.
49

{CAUTION:
Children can be seriously injured or
strangled if a shoulder belt is wrapped
around their neck and the safety belt
continues to tighten. Secure any unused
safety belts behind the child restraint so
children cannot reach them. Pull the
shoulder belt all the way out of the
retractor to set the lock, if your vehicle
has one, after the child restraint has
been installed. Be sure to follow the
instructions of the child restraint
manufacturer.
Notice:Contact between the child restraint or
the LATCH attachment parts and the vehicle’s
safety belt assembly may cause damage to
these parts. Make sure when securing unused
safety belts behind the child restraint that
there is no contact between the child restraint
or the LATCH attachment parts and the
vehicle’s safety belt assembly.Folding an empty rear seat with the safety
belts secured may cause damage to the safety
belt or the seat. When removing the child
restraint, always remember to return the safety
belts to their normal, stowed position before
folding the rear seat.
1. Attach and tighten the lower attachments to
the lower anchors. If the child restraint does
not have lower attachments or the desired
seating position does not have lower anchors,
secure the child restraint with the top tether
and the safety belts. Refer to your child
restraint manufacturer instructions and the
instructions in this manual.
1.1. Find the lower anchors for the desired
seating position.
1.2. Pull the strap at the center of the seat
where the seat cushion meets the
seatback. This will allow you to fold the
seat cushion up and out of the way.
Lift the ap to expose the anchors and
then lower the seat cushion. See
Rear Seat Operation on page 18for
additional information. Be sure the
cushion is locked into place.
61

Even if you have no right front passenger seat
in your vehicle there is still an active frontal
airbag in the right side of the instrument panel.
Do not place cargo in front of this airbag.
{CAUTION:
Be sure that cargo is not near an airbag.
In a crash, an inating airbag might
force that object toward a person. This
could cause severe injury or even death.
Secure objects away from the area in
which an airbag would inate. For more
information, seeWhere Are the Airbags?
on page 75andLoading Your Vehicle
on page 349.
Airbags are designed to supplement the protection
provided by safety belts. Even though today’s
airbags are also designed to help reduce the risk
of injury from the force of an inating bag, all
airbags must inate very quickly to do their job.Here are the most important things to know about
the airbag system:
{CAUTION:
You can be severely injured or killed in a
crash if you are not wearing your safety
belt — even if you have airbags. Wearing
your safety belt during a crash helps
reduce your chance of hitting things
inside the vehicle or being ejected from it.
Airbags are “supplemental restraints” to
the safety belts. All airbags are designed
to work with safety belts but do not
replace them.
Frontal airbags for the driver and right
front passenger are designed to deploy
in moderate to severe frontal and near
frontal crashes.
CAUTION: (Continued)
72