Page 49 of 428

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.
Page 50 of 428

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.
Page 51 of 428
Black plate (19,1)GMC Terrain Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-19
The power windows work when the
ignition is in ON/RUN or ACC/
ACCESSORY, or in Retained
Accessory Power (RAP). See
Retained Accessory Power (RAP)
on page 9‑25.
Press the front of the switch to open
the window. Pull the switch up to
close it.
Express Down Windows
Windows that have the
express‐down feature allow the
windows to be lowered without
holding the switch. Press the
window switch fully and release it to
activate the express‐down feature.
The express mode can be canceled
at any time by briefly pressing,
or pulling the switch.
Window Lockout
o(Window Lockout): This feature
prevents the rear passenger
windows from operating, except
from the driver position.
Press
oto activate the rear
window lockout switch. The LED
light comes on when activated.
Press
oagain to deactivate the
lockout switch.
Page 52 of 428
Black plate (20,1)GMC Terrain Owner Manual (Include Mex) - 2012
2-20 Keys, Doors, and Windows
Sun Visors
Pull the sun visor down to block
glare. Detach the sun visor from the
center mount to pivot to the side
window, or to extend along the rod,
if available.
Roof
Sunroof
On vehicles with a sunroof, the
switches used to operate it are on
the headliner above the rearview
mirror. The ignition must be in ON/
RUN or ACC/ACCESSORY, or in
Retained Accessory Power (RAP) to
operate the sunroof. SeeIgnition
Positions on page 9‑21 and
Retained Accessory Power (RAP)
on page 9‑25.
.Press and hold the front or rear
of the driver side switch to open
or close the sunroof. The
sunshade automatically opens
with the sunroof, but must be
closed manually.
.Press and hold the rear of the
passenger side switch to vent
the sunroof. Press and hold the
front of the switch to close.
Page 53 of 428
Black plate (21,1)GMC Terrain Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-21
Express-open/Express-close
Press and release the front or rear
of the driver side switch to
express-open or express-close the
sunroof.
Anti-Pinch Feature
If an object is in the path of the
sunroof when it is closing, the
anti-pinch feature detects the object
and stops the sunroof from closing
at the point of the obstruction. The
sunroof then returns to the full-open
position.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation, noise, or plugging the
water drainage system. Periodically
open the sunroof and remove any
obstacles or loose debris. Wipe the
sunroof seal and roof sealing area
using a clean cloth, mild soap, and
water. Do not remove grease from
the sunroof.
Page 54 of 428
Black plate (22,1)GMC Terrain Owner Manual (Include Mex) - 2012
2-22 Keys, Doors, and Windows
2NOTES
Page 55 of 428

Black plate (1,1)GMC Terrain Owner Manual (Include Mex) - 2012
Seats and Restraints 3-1
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats
Seat Adjustment . . . . . . . . . . . . . . 3-3
Power Seat Adjustment . . . . . . . 3-4
Lumbar Adjustment . . . . . . . . . . . 3-5
Reclining Seatbacks . . . . . . . . . . 3-5
Memory Seats . . . . . . . . . . . . . . . . 3-7
Heated Front Seats . . . . . . . . . . . 3-9
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . 3-10
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . 3-12
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . 3-13
Lap-Shoulder Belt . . . . . . . . . . . 3-15
Safety Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . 3-19
Safety Belt Extender . . . . . . . . . 3-19 Safety System Check . . . . . . . . 3-19
Safety Belt Care . . . . . . . . . . . . . 3-20
Replacing Safety Belt System
Parts after a Crash . . . . . . . . . 3-20
Airbag System
Airbag System . . . . . . . . . . . . . . . 3-21
Where Are the Airbags? . . . . . 3-23
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . 3-24
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . 3-26
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . 3-26
What Will You See after an Airbag Inflates? . . . . . . . . . . . . 3-26
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . 3-28
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . 3-32
Adding Equipment to the Airbag-Equipped Vehicle . . . 3-33
Airbag System Check . . . . . . . . 3-34
Replacing Airbag System Parts after a Crash . . . . . . . . . 3-34
Child Restraints
Older Children . . . . . . . . . . . . . . . 3-35
Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . 3-37
Child Restraint Systems . . . . . 3-40
Where to Put the Restraint . . . 3-41
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . 3-44
Replacing LATCH System Parts After a Crash . . . . . . . . . 3-49
Securing Child Restraints (Rear Seat ) . . . . . . . . . . . . . . . . 3-49
Securing Child Restraints (Front Passenger Seat) . . . . 3-52
Page 56 of 428

Black plate (2,1)GMC Terrain Owner Manual (Include Mex) - 2012
3-2 Seats and Restraints
Head Restraints
Front Seats
The vehicle's front seats have head
restraints in the 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.The height of the head restraint can
be adjusted. Pull the head restraint
up to raise it. Try to move the head
restraint to make sure that it is
locked in place.
To lower the head restraint, press
the button, located on the top of the
seatback, and push the head
restraint down. Try to move the
head restraint after the button is
released to make sure that it is
locked in place.
The front seat outboard head
restraints are not designed to be
removed.