2010 GMC TERRAIN warning

Keys, Doors and Windows 1-11
Press and release&on the
liftgate adjacent to the latch to close
the liftgate.
Pressing any button, or the
touchpad switch while the liftgate is
moving stops it. Pressing the button
or RKE switch 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 you shift the transmission out of
P (Park) while the power function is
in progress, the liftgate power
function will continue to completion.
If you shift the transmission out of
P (Park) and accelerate 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 you drive away.
If you power open the liftgate and
the liftgate support struts have lost
pressure, the turn signals flash and
a chime sounds. The liftgate stays
open temporarily, then slowly
closes. See your dealer/retailer for
service before using the liftgate.
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.
The
“Manually Close Power Liftgate”
warning message in the Driver
Information Center (DIC) will
display. After removing the
obstructions, the liftgate will resume
normal power operation.
Your vehicle has pinch sensors
located on the side edges of the
liftgate. If an object is caught
between the liftgate and the body
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.

1-14 Keys, Doors and Windows
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 the correct 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/retailer
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.
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.

1-16 Keys, Doors and Windows
Interior Mirrors
Automatic Dimming
Rearview Mirror
The vehicle may have an automatic
dimming inside rearview mirror.
Vehicles with OnStar
®have three
additional control buttons located at
the bottom of the mirror. See your
dealer/retailer for more information
on the system and how to subscribe
to OnStar. See OnStar
®Systemon
page 4‑41for more information
about the services OnStar provides.
O: Press to turn automatic
dimming on or off.
If the vehicle has a rear vision
camera (RVC) the
Obutton for
turning the automatic dimming
feature on or off will not be
available. See Rear Vision Camera
(RVC)
on page 8‑50for more
information.
Automatic Dimming Mirror
Operation
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.
Cleaning the Mirror
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
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.

Keys, Doors and Windows 1-17
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.
Uplevel shown, base similar
The power window controls are
located on each of the side doors.
The driver door also has switches
that control the passenger and
rear windows. The power windows
work when the ignition is in ACC/
ACCESSORY, ON/RUN or when
Retained Accessory Power (RAP) is
active. See Retained Accessory
Power (RAP) on page 8‑29.
Press or pull on the switch to lower
or raise the window.

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 2-3
Front Seats
Seat Adjustment
{WARNING
You can lose control of the
vehicle if you try to adjust a
manual driver's seat while the
vehicle is moving. The sudden(Continued)
WARNING (Continued)
movement could startle and
confuse you, or make you push a
pedal when you do not want to.
Adjust the driver's seat only when
the vehicle is not moving.
To adjust the seat position:
1. Pull the handle located at the front of the seat.
2. Move the seat forward or backward to adjust the seat
position.
3. Release the handle to stop the seat from moving.
Power Seat Adjustment
Driver Seat with Power Seat
Control, Power Recline,
and Power Lumbar shown
A: Memory Seat Adjustment
B: Power Seat Adjustment
C: Power Recline Adjustment
D: Power Lumbar Adjustment

Seats and Restraints 2-5
To stop recall movement of the RKE
remote recall feature, press one of
the power seat controls, memory
buttons, or power mirror buttons.
Memory Seat recall may stop if the
seat is blocked. Remove the
obstruction and then press the
memory button again. If the memory
function does not work properly, see
your dealer/retailer for service.
Easy Exit Seat
If the easy exit seat feature is on in
the Driver Information Center (DIC),
automatic adjustment occurs when
the ignition is turned to LOCK/OFF
and the driver door is opened. The
driver seat moves back.
SeeVehicle Personalization
on
page 4‑36for more information.
Lumbar Adjustment
Power Lumbar
Seats with power lumbar have
controls located on the outboard
side of the seat. See Power Seat
Adjustment
on page 2‑3for more
information.
Adjust lumbar support by using the
rocker switch (D) on the outboard
side of the driver seat.
Release the switch when the
seatback reaches the desired level
of lumbar support.
Reclining Seatbacks
Manual Reclining Seatbacks
{WARNING
You can lose control of the
vehicle if you try to adjust a
manual driver's seat while the
vehicle is moving. The sudden
(Continued)
WARNING (Continued)
movement could startle and
confuse you, or make you push a
pedal when you do not want to.
Adjust the driver's seat only when
the vehicle is not moving.
{WARNING
If either seatback is not locked, it
could move forward in a sudden
stop or crash. That could cause
injury to the person sitting there.
Always push and pull on the
seatbacks to be sure they are
locked.
Vehicles with manual reclining
seatbacks have a lever on the
outboard side of the seat. Lift the
lever and move the seatback to the
desired position, then release the
lever. The seatback should not
move when pushed or pulled.

2-6 Seats and Restraints
Power Reclining Seatbacks
On vehicles with power reclining
seatbacks, the switch is located on
the outboard side of the seat. See
Power Seat Adjustment
on
page 2‑3for more information.
Move the switch forward or rearward
to adjust the seatback.
{WARNING
Sitting in a reclined position when
the vehicle is in motion can be
dangerous. Even when buckled
up, the safety belts cannot do
their job when reclined like this.
The shoulder belt cannot do its
job because it will not be against
your body. Instead, it will be in
front of you. In a crash, you could
go into it, receiving neck or other
injuries.
The lap belt cannot do its job
either. In a crash, the belt could
go up over your abdomen. The
belt forces would be there, not at
your pelvic bones. This could
cause serious internal injuries. (Continued)
WARNING (Continued)
For proper protection when the
vehicle is in motion, have the
seatback upright. Then sit well
back in the seat and wear the
safety belt properly.
Do not have a seatback reclined if
your vehicle is moving.