GMC TERRAIN 2012 Service Manual

Black plate (9,1)GMC Terrain Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-9
Doors
Liftgate
{WARNING
Exhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch or
liftgate. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
.Close all of the windows.
.Fully open the air outlets on
or under the instrument
panel.(Continued)
WARNING (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air and
set the fan speed to the
highest setting. See “Climate
Control Systems” in the
Index.
.If the vehicle is equipped with
a power liftgate, disable the
power liftgate function.
For more information about
carbon monoxide, see Engine
Exhaust on page 9‑28.
Notice: If you open the liftgate
without checking for overhead
obstructions such as a garage
door, you could damage the
liftgate or the liftgate glass.
Always check to make sure the
area above and behind the liftgate
is clear before opening it.
Manual Liftgate
To unlock the liftgate, press the
power door lock switch or press
"
on the Remote Keyless Entry
(RKE) transmitter twice. See
Remote Keyless Entry (RKE)
System Operation on page 2‑3.
To open the liftgate, press the touch
pad under the liftgate handle and
lift up.
Use the pull cup to lower and close
the liftgate. Do not press the touch
pad while closing the liftgate. This
may cause the liftgate to be
unlatched.
Always close the liftgate before
driving.

Black plate (10,1)GMC Terrain Owner Manual (Include Mex) - 2012
2-10 Keys, Doors, and Windows
Power Liftgate
On vehicles with a power liftgate,
the vehicle must be in P (Park) to
operate. The taillamps flash when
the power liftgate moves.
{WARNING
You or others could be injured if
caught in the path of the power
liftgate. Make sure there is no one
in the way of the liftgate as it is
opening and closing.
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 a standard manual
liftgate.

Black plate (11,1)GMC Terrain Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-11
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
RKE transmitter until the liftgate
starts moving. See Remote
Keyless Entry (RKE) System
Operation on page 2‑3.
.Pressing the power liftgate
button in the center of the mode
switch on the overhead console,
with the driver door unlocked.
.Pressing the touch pad switch
on the liftgate outside handle,
with all doors unlocked, to open
the liftgate.
Press and release8on the
liftgate adjacent to the latch to close
the liftgate.
Pressing any button, or the touch
pad switch, while the liftgate is
moving stops it. Pressing the button
or RKE transmitter again reverses
the direction. The touch pad switch
will stop the liftgate from moving.
There is a minimum distance that
the power liftgate must already be
open for the system to hold it open.
If movement is stopped below that
minimum, the liftgate closes. Do not force the liftgate open or
closed during a power cycle.
The power liftgate may be
temporarily disabled under extreme
temperatures or low battery
conditions. If this occurs, the liftgate
can still be operated manually.
If the vehicle is shifted out of
P (Park) while the power function is
in progress, the liftgate power
function will continue to completion.
If the vehicle is shifted out of
P (Park) and accelerated before the
power liftgate latch is closed, the
liftgate may reverse to the open
position. Cargo could fall out of the
vehicle. Always make sure the
power liftgate is closed and latched
before driving away.
If the liftgate is power opened and
the liftgate support struts have lost
pressure, the turn signals flash and
a chime will sound. The liftgate
stays open temporarily, and then
slowly closes. See a dealer for
service before using the liftgate.

Black plate (12,1)GMC Terrain Owner Manual (Include Mex) - 2012
2-12 Keys, Doors, and Windows
Obstacle Detection Features
If the liftgate encounters an obstacle
during a power open or close cycle,
a warning chime will sound and the
liftgate will automatically reverse
direction to the full closed or open
position. After removing the
obstruction, the power liftgate
operation can be used again. If the
liftgate encounters multiple
obstacles on the same power cycle,
the power function will deactivate
and a message will display in the
Driver Information Center (DIC) ,
seeObject Detection System
Messages on page 5‑29. After
removing the obstructions, the
liftgate will resume normal power
operation.
Pinch sensors are located on the
side edges of the liftgate. If an
object is caught between the liftgate
and the vehicle and presses against
this sensor, the liftgate will reverse
direction and open fully. The liftgate
will remain open until it is activated
again or closed manually.
Power Liftgate 3/4 Mode
To program the liftgate opening
height:
1. Turn the liftgate switch to either the MAX , or the 3/4 mode
position and power open the
liftgate.
2. Stop the liftgate movement at the desired height by pressing
any liftgate switch. Manually
adjust the liftgate position if
required.
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. If there is no audible and visual
feedback when setting the
intermediate stop position, the
liftgate height is being set below the
3/4 open height minimum
(approximately 1.5 m or 5 ft). The
liftgate cannot be set below that
minimum and the new setting will
not be recorded.
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
a standard manual liftgate.

Black plate (13,1)GMC Terrain Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-13
To open the liftgate, press the touch
pad 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
Von the RKE transmitter 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.
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
it impossible to steal.
Anti-theft Alarm System
This vehicle has an anti-theft alarm
system.
Arming the System
To arm the system, do one of the
following:
.PressQon the RKE transmitter.
.Lock the vehicle using the key in
the driver door.
The alarm automatically arms after
about 30 seconds. The security
light, located on the instrument
panel, flashes.
Press
Von the RKE transmitter to
open the liftgate without setting off
the alarm. The system rearms when
the liftgate is closed.
Disarming the System
To disarm the system, do one of the
following:
.PressKon the RKE transmitter.
.Turn the ignition to ON/RUN.
.Allow the alarm to time out after
about 30 seconds and reset
itself.
The alarm automatically disarms.
If the system is armed and any door
is unlocked without pressing
Kon
the RKE transmitter, the alarm
sounds.

Black plate (14,1)GMC Terrain Owner Manual (Include Mex) - 2012
2-14 Keys, Doors, and Windows
How to Detect a Tamper
Condition
IfKis pressed and the horn
sounds, an attempted break-in has
occurred while the system was
armed.
If the alarm has been activated, the
THEFT ATTEMPTED message will
appear on the DIC. See Key and
Lock Messages on page 5‑29 for
additional information.
Immobilizer
See Radio Frequency Statement on
page 13‑21 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed. The vehicle is automatically
immobilized when the key is
removed from the ignition.
The system is automatically
disarmed when the vehicle is
started with the correct key. The key
uses a transponder that matches an
immobilizer control unit in the
vehicle and automatically disarms
the system. Only an authorized key
starts the vehicle. The vehicle may
not start if the key is damaged.
The security light, located in the
instrument panel cluster, comes on
if there is a problem with arming or
disarming the theft-deterrent
system.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged
or the light continues to stay on, try
another ignition key. If the engine
does not start with the other key, the
vehicle needs service. If the vehicle
does start, the first key may be
damaged. See your dealer who can
service the theft-deterrent system
and have a new key made.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Black plate (15,1)GMC Terrain Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-15
Exterior Mirrors
Convex Mirrors
{WARNING
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.
Power Mirrors
To adjust the mirrors:
1. Move the selector switch to L (left) or R (right) to choose the
driver or passenger mirror.
2. Press the arrows on the control pad to move each mirror in the
desired direction.
3. Return the selector switch to the middle position.
Heated Mirrors
For vehicles with heated mirrors:
The heated outside rearview mirrors
turn on when the rear window
defogger is on and help to clear fog
or frost from the surface of the
mirrors.
1(Rear Window Defogger): This
button is on the climate control
panel.
See “Rear Window Defogger” under
Automatic Climate Control System
on page 8‑3 for more information.
Blind Spot Mirrors
The blind spot mirror is a small
convex mirror built into the upper
and outer corner of both outside
mirrors. It can show objects that
may be in the vehicle's blind zone.

Black plate (16,1)GMC Terrain Owner Manual (Include Mex) - 2012
2-16 Keys, Doors, and Windows
Driving with the Blind Spot
Mirror
Actual Mirror View1. When the approaching vehicle is
a long distance away, the image
in the main mirror is small and
near the inboard edge of the
mirror.
2. As the vehicle gets closer, the image in the main mirror gets
larger and moves outboard.
3. As the vehicle enters the blind zone, the image transitions from
the main mirror to the blind spot
mirror.
4. When the vehicle is in the blind zone, the image only appears in
the blind spot mirror.
Using the Outside Mirror with
the Blind Spot Mirror
1. Set the main mirror so that theside of the vehicle can just be
seen and the blind spot mirror
has an unobstructed view.
2. When checking for traffic or before changing a lane, look at
the main driver/passenger side
mirror to observe traffic in the
adjacent lane, behind your
vehicle. Check the blind spot
mirror for a vehicle in the blind
zone. Then, glance over your
shoulder to double check before
moving slowly into the
adjacent lane.

Black plate (17,1)GMC Terrain Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-17
Park Tilt Mirrors
If the vehicle is equipped with
memory mirrors, there is an option
to have the mirrors tilt down, when
in R (Reverse), to more easily see
the ground near the vehicle.
When the vehicle is shifted to
R (Reverse), both the driver and
passenger mirrors will tilt downward.
They will return to their previous
position when the vehicle is shifted
out of R (Reverse), the ignition is
turned to OFF, or the vehicle is left
in R (Reverse) for an extended
period of time.
This feature can be turned on or off.
SeeVehicle Personalization on
page 5‑33.
Interior Mirrors
Manual Rearview Mirror
Hold the inside rearview mirror in
the center and move it for a clearer
view behind the vehicle. Adjust the
mirror to avoid glare from the
headlamps behind you. Push the
tab forward for daytime use and pull
it for nighttime use.
Vehicles with OnStar
®have three
control buttons located at the
bottom of the mirror. See your
dealer for more information on the
system and how to subscribe to
OnStar. See OnStar Overview on
page 14‑1.
Automatic Dimming
Rearview Mirror
The vehicle may have an automatic
dimming inside rearview mirror.
Automatic dimming reduces the
glare from the headlamps of the
vehicle behind you. The dimming
feature comes on and the indicator
light comes on each time the vehicle
is started.
O: Press to turn automatic
dimming on or off.
Vehicles with OnStar
®have three
additional control buttons located at
the bottom of the mirror. See your
dealer for more information on the
system and how to subscribe to
OnStar. See OnStar Overview on
page 14‑1.
Cleaning the Mirror
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.

Black plate (18,1)GMC Terrain Owner Manual (Include Mex) - 2012
2-18 Keys, Doors, and Windows
Windows
{WARNING
Leaving children, helpless adults,
or pets in a vehicle with the
windows closed is dangerous.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke. Never leave a
child, a helpless adult, or a pet
alone in a vehicle, especially with
the windows closed in warm or
hot weather.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when a window is
partially open. To reduce the sound,
open another window or the sunroof
(if equipped).
Power Windows
{WARNING
Leaving children in a vehicle with
the keys is dangerous for many
reasons. Children or others could
be badly injured or even killed.
They could operate the power
windows or other controls or even
make the vehicle move. The
windows will function and they
could be seriously injured or killed
if caught in the path of a closing
window. Do not leave keys in a
vehicle with children.
When there are children in the
rear seat use the window lockout
button to prevent unintentional
operation of the windows.