height GMC TERRAIN 2010 Owner's Manual

1-10 Keys, Doors and Windows
The power liftgate has three modes
of operation. Mode selection is
controlled by the interior mode
switch.
Choose the power liftgate mode by
turning the dial on the switch until
the indicator lines up with the
desired position. The vehicle must
be in P (Park).The three modes are:
MAX :
The liftgate power opens to
the full open height.
3/4 : The liftgate power opens to a
reduced open height that can be set
by the vehicle operator. Use this
setting to prevent the liftgate from
opening into overhead obstructions
such as a garage door or roof
mounted cargo during power
operation. The liftgate can still be
fully opened manually.
OFF: The liftgate only operates
manually in this position.
Manual operation of a liftgate that
also has power operation requires
more effort than with a standard
manual liftgate. In either the MAX or the 3/4 mode,
the liftgate can be power opened
and closed by:
.First pressingKand then
pressing and holding
Von the
Remote Keyless Entry (RKE)
transmitter until the liftgate starts
moving. See Remote Keyless
Entry (RKE) System Operation
on page 1‑3.
.Pressing the power liftgate
button on the center of the mode
switch, located on the overhead
console.
.Pressing the touchpad switch on
the liftgate outside handle to
open the liftgate.

1-12 Keys, Doors and Windows
Setting the Power Liftgate
3/4 Mode
To change the liftgate stop position:
1. Turn the liftgate switch to the3/4 mode position and power
open the liftgate.
2. Stop the liftgate movement at the desired height by pressing
any switch.
3. Press and hold the button on the liftgate adjacent to the latch until
the turn signals flash and a beep
sounds to indicate that the new
setting is recorded.
When power opened with the
3/4 mode selected, the liftgate
stops at the new set position.
There is a minimum that the power
liftgate must already be open for the
system to hold it open. The liftgate
cannot be set to stop below that
minimum.
Manual Operation of Power
Liftgate
To change the liftgate to manual
operation, turn the mode switch to
the OFF position.
With the power liftgate disabled and
all of the doors unlocked, the liftgate
can be manually opened and
closed. Manual operation of a
liftgate that also has power
operation requires more effort than
with a standard manual liftgate.
To open the liftgate, press the
touchpad on the handle on the
outside of the liftgate, and lift the
gate open. To close the liftgate, use
the pull cup to lower the liftgate and
close. With the power liftgate
disabled the liftgate electric latch
will still power latch once contact is
made with the striker. Always close
the liftgate before driving. If the RKE button is pressed while
power operation is disabled, the turn
signals flash and the liftgate will
not move.
The liftgate has an electric latch.
If the battery is disconnected or
has low voltage, the liftgate will not
open. The liftgate will resume
operation when the battery is
reconnected and charged.

2-2 Seats and Restraints
Head Restraints
The vehicle's front and rear seats
have head restraints in all outboard
seating positions.
{WARNING
With head restraints that are not
installed and adjusted properly,
there is a greater chance that
occupants will suffer a neck/
spinal injury in a crash. Do not
drive until the head restraints for
all occupants are installed and
adjusted properly.
Adjust the head restraint so that the
top of the restraint is at the same
height as the top of the occupant's
head. This position reduces the
chance of a neck injury in a crash.1. Pull the head restraint up toraise it. To lower the head
restraint, press the release
button, located on the head
restraint post on the top of the
seatback, while you push the
head restraint down.
2. Push down on the head restraint after the button is released to
make sure that it is locked in
place.
The vehicle's rear seat head
restraints are not adjustable.

Seats and Restraints 2-19
3. Push the latch plate into thebuckle until it clicks.
Pull up on the latch plate to
make sure it is secure. If the belt
is not long enough, see Safety
Belt Extender
on page 2‑23.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary. 4. If equipped with a shoulder belt
height adjuster, move it to the
height that is right for you. See
“Shoulder Belt Height Adjuster”
later in this section for
instructions on use and
important safety information.
5. To make the lap part tight, pull
up on the shoulder belt.
It may be necessary to pull
stitching on the safety belt
through the latch plate to fully
tighten the lap belt on smaller
occupants.
To unlatch the belt, push the button
on the buckle. For outboard seating
positions, slide the latch plate up
the safety belt webbing when the
safety belt is not in use. The latch
plate should rest on the stitching on
the safety belt, near the guide loop.
Before a door is closed, be sure the
safety belt is out of the way. If a
door is slammed against a safety
belt, damage can occur to both the
safety belt and the vehicle.

2-20 Seats and Restraints
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt
height adjuster for the driver and
right front passenger seating
positions.
Adjust the height so that the
shoulder portion of the belt is
centered on the shoulder. The belt
should be away from the face and
neck, but not falling off the shoulder.
Improper shoulder belt height
adjustment could reduce the
effectiveness of the safety belt in
a crash.
Move the height adjuster up to the
desired position by pushing up on
the height adjuster.
After the height adjuster is set to the
desired position, try to move it up or
down without pressing the release
button (A) to make sure it has
locked into position. Press the
release button to lower the height
adjuster.
Safety Belt Pretensioners
This vehicle has safety belt
pretensioners for front outboard
occupants. Although the safety belt
pretensioners cannot be seen, 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, near
frontal, or rear crash if the threshold
conditions for pretensioner
activation are met. And, if the
vehicle has side impact airbags,
safety belt pretensioners can help
tighten the safety belts in a side
crash or rollover event.
Pretensioners work only once. If the
pretensioners activate in a crash,
they need to be replaced, and other
new parts for the vehicle's safety
belt system may be required. See
Replacing Safety Belt System Parts
After a Crash on page 2‑24.

2-38 Seats and Restraints
If the passenger seat gets wet, dry
the seat immediately. If the airbag
readiness light is lit, do not install a
child restraint or allow anyone to
occupy the seat. SeeAirbag
Readiness Light
on page 4‑15for
important safety information.
The on indicator may be lit if an
object, such as a briefcase,
handbag, grocery bag, laptop or
other electronic device, is put on an
unoccupied seat. If this is not
desired remove the object from
the seat.
{WARNING
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicle
should be serviced. There are parts
of the airbag system in several
places around the vehicle. Your
dealer/retailer and the service
manual have information about
servicing the vehicle and the airbag
system. To purchase a service
manual, see Service Publications
Ordering Information on page 12‑12.
{WARNING
For up to 10 seconds after the
ignition is turned off and the
battery is disconnected, an airbag
can still inflate during improper
service. You can be injured if you
are close to an airbag when it
inflates. Avoid yellow connectors.
(Continued)
WARNING (Continued)
They are probably part of the
airbag system. Be sure to follow
proper service procedures, and
make sure the person performing
work for you is qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Q: Is there anything I might addto or change about the vehicle
that could keep the airbags
from working properly?
A: Yes. If you add things that
change the 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,

Seats and Restraints 2-41
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 forthat booster. Use a booster seat
with a lap-shoulder belt until the
child passes the below fit 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”
under Lap-Shoulder Belt
on
page 2‑18for more information.
If the shoulder belt still does not
rest on the shoulder, then return
to the booster seat.
.Does the lap belt fit low and
snug on the hips, touching the
thighs? If yes, continue. If no,
return to the booster seat.
.Can proper safety belt fit be
maintained for the length of the
trip? If yes, continue. If no,
return to the booster seat. 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 fit
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” underLap-Shoulder Belt
on
page 2‑18.

Seats and Restraints 2-45
Q: What are the different types ofadd-on child restraints?
A: Add-on child restraints, which
are purchased by the vehicle's
owner, are available in four basic
types. Selection of a particular
restraint should take into
consideration not only the child's
weight, height, and age but also
whether or not the restraint will
be compatible with the motor
vehicle in which it will be used.
For most basic types of child
restraints, there are many
different models available. When
purchasing a child restraint, be
sure it is designed to be used
in a motor vehicle. If it is, the
restraint will have a label saying
that it meets federal motor
vehicle safety standards. The restraint manufacturer's
instructions that come with the
restraint state the weight and
height limitations for a particular
child restraint. In addition, there
are many kinds of restraints
available for children with
special needs.
{WARNING
To reduce the risk of neck and
head injury during a crash, infants
need complete support. This is
because an infant's neck is not
fully developed and its head
weighs so much compared with
the rest of its body. In a crash,
an infant in a rear-facing child
restraint settles into the restraint,
so the crash forces can be
distributed across the strongest
part of an infant's body, the back
and shoulders. Infants should
always be secured in rear-facing
child restraints.
{WARNING
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. To reduce the risk of
serious or fatal injuries during a
crash, young children should
always be secured in appropriate
child restraints.

Vehicle Care 9-23
Brakes
This vehicle has disc brakes. Disc
brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be
heard all the time the vehicle is
moving, except when applying the
brake pedal firmly.
{WARNING
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
an accident. When the brake
wear warning sound is heard,
have the vehicle serviced.
Notice: Continuing to drive with
worn-out brake pads could result
in costly brake repair. Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications in
Capacities and
Specifications on page 11‑2.
Brake linings should always be
replaced as complete axle sets.
Brake Pedal Travel
See your dealer/retailer if the brake
pedal does not return to normal
height, or if there is a rapid increase
in pedal travel. This could be a
sign that brake service might be
required.
Brake Adjustment
Every time the brakes are applied,
with or without the vehicle moving,
the brakes adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is
complex. Its many parts have to be
of top quality and work well together
if the vehicle is to have really good
braking. The vehicle was designed
and tested with top-quality brake
parts. When parts of the braking
system are replaced, be sure to get
new, approved replacement parts.
If this is not done, the brakes might
not work properly. For example,
installing disc brake pads that are
wrong for the vehicle, can change
the balance between the front and
rear brakes —for the worse. The
braking performance expected can
change in many other ways if the
wrong replacement brake parts are
installed.

Vehicle Care 9-31
To adjust the vertical aim, do the
following:
1. Open the hood. SeeHood
on
page 9‑5for more information.
2. Locate the aim dot on the lens of the low‐beam headlamp.
3. Measure the distance from the ground to the aim dot on the
low‐beam headlamp. Record the
distance.
4. At the wall, measure from the
ground upward (A) to the
recorded distance from
Step 3 and mark it.
5. Draw or tape a horizontal line (B) on the wall the width of the
vehicle at the height of the mark
in Step 4. Notice:
Do not cover a headlamp
to improve beam cut-off when
aiming. Covering a headlamp may
cause excessive heat build-up
which may cause damage to the
headlamp.
6. Turn on the low-beam
headlamps and place a piece of
cardboard or equivalent in front
of the headlamp not being
adjusted. This allows only the
beam of light from the headlamp
being adjusted to be seen on the
flat surface.