page 5 GMC ENVOY 2008 Owner's Manual

Using this Manual
Many people read the owner manual from beginning to
end when they rst receive their new vehicle to learn
about the vehicle’s features and controls. Pictures
and words work together to explain things.
Index
A good place to quickly locate information about the
vehicle is the Index in the back of the manual. It is
an alphabetical list of what is in the manual and
the page number where it can be found.
Safety Warnings and Symbols
There are a number of safety cautions in this book.
A box with the word CAUTION is used to tell about
things that could hurt you or others if you were to
ignore the warning.
{CAUTION:
These mean there is something that could hurt
you or other people.
We tell you what the hazard is and what to do to help
avoid or reduce the hazard. Please read these cautions.
If you do not, you or others could be hurt.
A circle with a slash
through it is a safety
symbol which means
“Do Not,” “Do Not do this”
or “Do Not let this
happen.”
iii

Power Seats
On vehicles with power
seats, the controls used to
operate them are located
on the outboard side of
the seats.
To adjust the seat:
Move the seat forward or rearward using the
horizontal control.
Raise or lower the front of the seat cushion using
the front of the horizontal control.
Raise or lower the rear of the seat cushion using
the rear of the horizontal control.
Raise or lower the entire seat using the entire
horizontal control.For seats with power reclining seatbacks, see “Power
Reclining Seatbacks” underReclining Seatbacks
on page 1-7.
Manual Lumbar
On vehicles with this
feature, the knob is
located on the outboard
side of the driver’s seat.
Turn the knob to increase or decrease lumbar support.
1-3

To heat only the seatback, press the vertical button with
the heated seatback symbol. An indicator light on the
button will come on to designate that only the seatback
is being heated. Additional presses will cycle through
the heat levels for the seatback only.
The feature will shut off automatically when the ignition
is turned off.
Memory Seat, Mirrors, and Pedals
If your vehicle has this
feature, the controls for
the memory function are
located on the driver’s door.
These buttons are used to program and recall memory
settings for the driver’s seating position, both outside
mirror positions, and the adjustable pedals, if equipped.
The settings for these features can be saved for up
to two drivers.To store the memory settings, do the following:
1. Adjust the driver’s seat, including the seatback
recliner and lumbar, both of the outside mirrors,
and the adjustable pedals, if equipped, to the
desired position.
SeeAdjustable Throttle and Brake Pedal on
page 2-24for more information.
2. Press and hold the 1 or 2 button of the memory
control for three seconds. A double chime will
sound to let you know that the position has been
stored.
To repeat the procedure for a second driver, follow
the preceding steps, but press the other numbered
memory control button.
To recall the memory settings, do one of the following:
Press and release button 1 or 2 while the vehicle
is in PARK (P). A single chime will sound and
the memory position will be recalled.
If programmed to do so through the Driver
Information Center (DIC), pressing the unlock button
on the remote keyless entry transmitter will recall the
preset driver’s memory seat, mirrors, and adjustable
pedals position. The numbers on the back of the
transmitters, 1 or 2, correspond to the numbers
on the memory controls.
If programmed to do so through the DIC, placing the
key in the ignition will recall the driver’s memory seat,
mirrors, and adjustable pedals positions.
1-5

See “Seat Recall” underDIC Vehicle Customization on
page 3-58for more information.
To stop recall movement of the memory seat feature at
any time, press one of the memory buttons or power
seat controls.
Easy Exit Seat
The control for the easy exit seat function is located on
the driver’s door below the memory buttons 1 and 2.
The easy exit seat button is used to program and recall
the desired driver’s seat position when exiting or entering
the vehicle. The mirrors, power lumbar, recline, and
adjustable pedals, if equipped, positions will not be stored
or recalled when using the easy exit seat function.
The seat position can be saved for up to two drivers.
To store the easy exit seat position, do the following:
1. Press and release the 1 or 2 button of the memory
control for less than three seconds. The seat will
move to the stored memory position.
2. Adjust the seat to the desired exit position.
3. Press and hold the easy exit seat button for more
than three seconds. A double chime will sound to
let you know that the position has been stored
for the selected button 1 or 2.To repeat the procedure for a second driver, follow
the preceding steps, but press the other numbered
memory control button.
To recall the easy exit seat position, do one of the
following:
Press the easy exit seat button on the memory
control while the vehicle is in PARK (P). The
seat will move to the stored exit position.
Or, if the easy exit seat feature is activated in the
Driver Information Center (DIC), removing the key
from the ignition will move the seat to the exit
position. See “Easy Exit Seat” underDIC Vehicle
Customization on page 3-58for more information
on activating this feature in the DIC.
If an easy exit seat position has not been stored, the
default position is all the way rearward.
1-6

Safety Belts
Safety Belts: They Are for Everyone
This part of the manual tells you how to use safety
belts properly. It also tells you some things you should
not do with safety belts.
{CAUTION:
Do not let anyone ride where he or she cannot
wear a safety belt properly. If you are in a
crash and you are not wearing a safety belt,
your injuries can be much worse. You can hit
things inside the vehicle harder or be ejected
from it and be seriously injured or killed.
In the same crash, you might not be, if you are
buckled up. Always fasten your safety belt,
and check that your passenger(s) are
restrained properly too.
{CAUTION:
It is extremely dangerous to ride in a cargo
area, inside or outside of a vehicle. In a
collision, people riding in these areas are more
likely to be seriously injured or killed. Do not
allow people to ride in any area of your vehicle
that is not equipped with seats and safety belts.
Be sure everyone in your vehicle is in a seat and
using a safety belt properly.
Your vehicle has indicators as a reminder to buckle your
safety belts. SeeSafety Belt Reminders on page 3-32.
In most states and in all Canadian provinces, the
law requires wearing safety belts. Here is why:
You never know if you will be in a crash. If you do have
a crash, you do not know if it will be a serious one.
A few crashes are mild, and some crashes can be
so serious that even buckled up, a person would not
survive. But most crashes are in between. In many
of them, people who buckle up can survive and
sometimes walk away. Without belts they could
have been badly hurt or killed.
After more than 40 years of safety belts in vehicles,
the facts are clear. In most crashes buckling up does
matter... a lot!
1-13

How to Wear Safety Belts Properly
This section is only for people of adult size.
Be aware that there are special things to know about
safety belts and children. And there are different
rules for smaller children and babies. If a child will be
riding in your vehicle, seeOlder Children on page 1-32
orInfants and Young Children on page 1-35. Follow
those rules for everyone’s protection.
It is very important for all occupants to buckle up.
Statistics show that unbelted people are hurt more often
in crashes than those who are wearing safety belts.
Occupants who are not buckled up can be thrown out
of the vehicle in a crash. And they can strike others
in the vehicle who are wearing safety belts.
First, before you or your passenger(s) wear a safety
belt, there is important information you should know.
Sit up straight and always keep your feet on the oor in
front of you. The lap part of the belt should be worn low
and snug on the hips, just touching the thighs. In a crash,
this applies force to the strong pelvic bones and you
would be less likely to slide under the lap belt. If you slid
under it, the belt would apply force on your abdomen.
This could cause serious or even fatal injuries. The
shoulder belt should go over the shoulder and across
the chest. These parts of the body are best able to take
belt restraining forces.
The shoulder belt locks if there is a sudden stop or crash.
1-18

Lap-Shoulder Belt
All seating positions in your vehicle have a
lap-shoulder belt.
Here is how to wear a lap-shoulder belt properly.
1. Adjust the seat, if the seat is adjustable, so you can
sit up straight. To see how, see “Seats” in the Index.
2. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
If you ever pull the shoulder portion of a passenger
belt out all the way, you may engage the child
restraint locking feature. If this happens, just let
the belt go back all the way and start again.
Engaging the child restraint locking feature
may affect the passenger sensing system.
SeePassenger Sensing System on page 1-61.3. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, seeSafety Belt
Extender on page 1-31.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if necessary.
1-26

Safety Belt Pretensioners
Your vehicle has safety belt pretensioners for the front
outboard occupants. Although you cannot see them,
they are part of the safety belt assembly. They can help
tighten the safety belts during the early stages of a
moderate to severe frontal or near frontal crash if the
threshold conditions for pretensioner activation are met.
And, if your vehicle has side impact airbags, safety
belt pretensioners can help tighten the safety belts
in a side crash or a rollover event.
Pretensioners work only once. If they activate in a
crash, you will need to get new ones, and probably other
new parts for your safety belt system. SeeReplacing
Restraint System Parts After a Crash on page 1-69.
Rear Safety Belt Comfort Guides
Rear shoulder belt comfort guides may provide added
safety belt comfort for older children who have outgrown
booster seats and for some adults. When installed on
a shoulder belt, the comfort guide positions the belt
away from the neck and head.
There is one guide for each outside passenger position
in the rear seat. Here is how to install the comfort
guide to the shoulder belt:
1. Slide the guide off of its storage clip located
between the interior body and the seatback.
1-28

Child Restraints
Older Children
Older children who have outgrown booster seats should
wear the vehicle’s safety belts.The manufacturer’s instructions that come with the
booster seat state the weight and height limitations for
that booster. Use a booster seat with a lap-shoulder belt
until the child passes the below t test:
Sit all the way back on the seat. Do the knees bend
at the seat edge? If yes, continue. If no, return to
the booster seat.
Buckle the lap-shoulder belt. Does the shoulder belt
rest on the shoulder? If yes, continue. If no, try
using the rear safety belt comfort guide. See “Rear
Safety Belt Comfort Guides” underLap-Shoulder
Belt on page 1-26for more information. If the
shoulder belt still does not rest on the shoulder,
then return to the booster seat.
Does the lap belt t low and snug on the hips,
touching the thighs? If yes, continue. If no, return
to the booster seat.
Can proper safety belt t be maintained for the
length of the trip? If yes, continue. If no, return
to the booster seat.
1-32

Q:What is the proper way to wear safety belts?
A:An older child should wear a lap-shoulder belt and
get the additional restraint a shoulder belt can
provide. The shoulder belt should not cross the face
or neck. The lap belt should t snugly below the hips,
just touching the top of the thighs. This applies belt
force to the child’s pelvic bones in a crash. It should
never be worn over the abdomen, which could cause
severe or even fatal internal injuries in a crash.
Also see “Rear Safety Belt Comfort Guides” under
Lap-Shoulder Belt on page 1-26.
According to accident statistics, children and infants
are safer when properly restrained in the rear seating
positions than in the front seating positions.
In a crash, children who are not buckled up can strike
other people who are buckled up, or can be thrown
out of the vehicle. Older children need to use safety
belts properly.{CAUTION:
Never do this.
Here two children are wearing the same belt.
The belt cannot 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.
1-33