warning GMC TERRAIN 2020 User Guide

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
22 Keys, Doors, and Windows
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.
See Engine Exhaust 0191.
Caution
To avoid damage to the liftgate or
liftgate glass, make sure the area
above and behind the liftgate is
clear before opening it.
Manual Liftgate
To unlock the liftgate, pressKon
the power door lock switch or
press
Kon the Remote Keyless
Entry (RKE) transmitter twice within
five seconds. See Remote Keyless
Entry (RKE) System Operation 08.
To open the liftgate, press the touch
pad on the bottom of the liftgate 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. If equipped with Keyless Access,
the liftgate can be opened when
locked if the RKE transmitter is
within 1 m (3 ft) of the liftgate. See
Remote Keyless Entry (RKE)
System Operation
08.
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.
Always close the liftgate before
driving.
Power Liftgate Operation
{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.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Keys, Doors, and Windows 29
The system has one or more RKE
transmitters matched to an
immobilizer control unit in your
vehicle. Only a correctly matched
RKE transmitter will start the
vehicle. If the transmitter is ever
damaged, you may not be able to
start your vehicle.
When trying to start the vehicle, the
security light may come 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 ignition will not change from
off to on or ACC/ACCESSORY, and
the RKE transmitter appears to be
undamaged, try another transmitter.
Or, you may try placing the
transmitter in the cupholder in the
center console.If the ignition mode will not change
with the other transmitter or with the
transmitter in the cupholder, your
vehicle needs service. If the ignition
does change modes, the first
transmitter may be faulty. See your
dealer who can service the
theft-deterrent system and have a
new RKE transmitter programmed to
the vehicle.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed to
the vehicle. To program additional
transmitters, see
“Programming
Transmitters to the Vehicle” under
Remote Keyless Entry (RKE)
System Operation 08.
Do not leave the transmitter 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.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Keys, Doors, and Windows 31
The mirror(s) return to the original
position when:
.The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about
30 seconds.
. The ignition is turned off.
. The vehicle is driven in
R (Reverse) above a set speed.
To turn this feature on or off, see
Vehicle Personalization 0135.Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind the vehicle.
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Manual Rearview Mirror
Push the tab forward for daytime
use and pull it rearward for
nighttime use to avoid glare of the
headlamps from behind.
Automatic Dimming
Rearview Mirror
If equipped, automatic dimming
reduces the glare of headlamps
from behind. The dimming feature
comes on when the vehicle is
started.
Windows
{Warning
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
32 Keys, Doors, and Windows
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the
sound, open either a front window
or the sunroof, if equipped.
Power Windows
{Warning
Children could be seriously
injured or killed if caught in the
path of a closing window. Never
leave the Remote Keyless Entry
(RKE) transmitter in a vehicle with
children. When there are children
in the rear seat, use the window
lockout switch to prevent
operation of the windows. See
Keys07.The power windows work when the
ignition is on, in ACC/ACCESSORY,
or in Retained Accessory Power
(RAP). See Retained Accessory
Power (RAP) 0187.
Using the window switch, press to
open or pull to close the window.
The windows may be temporarily
disabled if they are used repeatedly
within a short time.
Window Lockout
This feature stops the rear door
passenger window switches from
working.
Press
2to engage the rear
window lockout feature. The
indicator light is on when engaged.
Press
2again to disengage.
Window Express Movement
All windows can be opened without
holding the window switch. Press
the switch down fully and quickly
release to express open the
window.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Keys, Doors, and Windows 33
If equipped, pull the window switch
up fully and quickly release to
express close the window.
Briefly press or pull the window
switch in the same direction to stop
that window’s express movement.
Window Automatic Reversal
System
The express-close feature will
reverse window movement if it
comes in contact with an object.
Extreme cold or ice could cause the
window to auto-reverse. The
window will operate normally after
the object or condition is removed.
Automatic Reversal System
Override
{Warning
If automatic reversal system
override is active, the window will
not reverse automatically. You or
others could be injured and the
window could be damaged.
Before using automatic reversal(Continued)
Warning (Continued)
system override, make sure that
all people and obstructions are
clear of the window path.
When the engine is on, override the
automatic reversal system by pulling
and holding the window switch if
conditions prevent it from closing.
Programming the Power
Windows
Programming may be necessary if
the vehicle’ s battery has been
disconnected or discharged. If the
window will not express close,
program each express-close
window:
1. Close all doors.
2. Turn the ignition on or to ACC/ ACCESSORY.
3. Partially open the window to be programmed. Then close it and
continue to pull the switch
briefly after the window has
fully closed. 4. Open the window and continue
to press the switch briefly after
the window has fully opened.
Remote Window Operation
If equipped, this feature allows all
the windows to be opened remotely.
If enabled in vehicle personalization,
press and hold
Kon the RKE
transmitter. See Vehicle
Personalization 0135.
Sun Visors
Pull the sun visor down to block
glare. Detach the sun visor from the
center mount to pivot to the side
window and, if equipped, extend
along the rod.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Seats and Restraints 37
Head Restraints
The vehicle’s front seats have
adjustable 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.
If your vehicle has rear head
restraints that fold down, always
return them to the full upright
position whenever an occupant is
seated in the seat.
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.
Front Seats
The vehicle's front seats have
adjustable head restraints in the
outboard seating positions.
The height of the head restraint can
be adjusted.
To raise or lower the head restraint,
press the button located on the side
of the head restraint and pull up or
push the head restraint down, and
release the button. Pull and push on
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 removable.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Seats and Restraints 39
Front Seats
Seat Adjustment
{Warning
You can lose control of the
vehicle if you try to adjust a driver
seat while the vehicle is moving.
Adjust the driver seat only when
the vehicle is not moving.
To adjust the seat position:1. Pull the handle at the front of the seat cushion to unlock it.
2. Move the seat forward or rearward and release the
handle.
3. Try to move the seat back and forth to be sure it is locked in
place.
Seat Height Adjuster
Move the lever up or down to raise
or lower the seat.
Power Seat Adjustment
{Warning
The power seats will work with
the ignition off. Children could
operate the power seats and be
injured. Never leave children
alone in the vehicle.
To adjust a power seat, if equipped:
.Move the seat forward or
rearward by sliding the control
forward or rearward.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
40 Seats and Restraints
.Raise or lower the front part of
the seat cushion by moving the
front of the control up or down.
. Raise or lower the entire seat by
moving the rear of the control up
or down.
To adjust the seatback, see
Reclining Seatbacks 040.
Lumbar Adjustment
If equipped, press and hold the front
or rear of the control to increase or
decrease lumbar support.
Reclining Seatbacks
{Warning
Sitting in a reclined position when
the vehicle is in motion can be
dangerous. Even when buckled
up, the seat belts cannot do
their job.
The shoulder belt 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 could go up over
your abdomen. The belt forces
would be there, not at your pelvic
bones. This could cause serious
internal injuries.
For proper protection when the
vehicle is in motion, have the
seatback upright. Then sit well
back in the seat and wear the
seat belt properly.
Do not have a seatback reclined if
the vehicle is moving.
Manual Reclining Seatbacks
{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.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
44 Seats and Restraints
saved to. Try storing the position to
the other memory button or try the
other RKE transmitter.
Seat Exit Memory
Seat Exit Memory is not linked to an
RKE transmitter. The position saved
to
Bis used for all drivers. To turn
Seat Exit Memory on or off, see
"Vehicle Personalization Settings"
previously in this section and
Vehicle Personalization 0135.
If turned on, the position saved to
Bis automatically recalled when
one of the following occurs:
. The vehicle is turned off and the
driver door is opened within a
short time.
. The vehicle is turned off with the
driver door open.
To stop Seat Exit Memory
movement, press any of the
following memory controls:
. Power seat
. Memory SET, 1, 2, or
B
.Power mirror, with the driver or
passenger side mirror selected
Obstructions
If something has blocked the driver
seat while recalling a memory
position, the recall may stop.
Remove the obstruction and try the
recall again. If the memory position
still does not recall, see your dealer.
Heated and Ventilated
Front Seats
{Warning
If temperature change or pain to
the skin cannot be felt, the seat
heater may cause burns. To
reduce the risk of burns, use care
when using the seat heater,
especially for long periods of
time. Do not place anything on
the seat that insulates against
heat, such as a blanket, cushion,
cover, or similar item. This may
cause the seat heater to (Continued)
Warning (Continued)
overheat. An overheated seat
heater may cause a burn or may
damage the seat.
If equipped, the buttons are on the
center console. To operate, the
engine must be running.
Press
Ior+, if equipped, to heat
the driver or passenger
seatback only.
Press
Jorzto heat the driver or
passenger cushion and seatback.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Seats and Restraints 45
PressCor{, if equipped, to
ventilate the driver or passenger
seat. A ventilated seat has a fan
that pulls air through the cushion
and seatback. The air is not cooled.
Press the button once for the
highest setting. With each press of
the button, the seat will change to
the next lower setting, and then to
the off setting. The indicator lights
next to the buttons indicate three for
the highest setting and one for the
lowest.
Remote Start Heated and
Ventilated Seats
During a remote start, the heated or
ventilated seats, if equipped, can be
turned on automatically. When it is
cold outside, the heated seats turn
on, and when it is hot outside the
ventilated seats turn on. The heated
or ventilated seats are canceled
when the ignition is turned on. Press
the heated or ventilated seat button
to use the heated or ventilated seats
after the vehicle is started. The heated or ventilated seat
indicator lights do not turn on during
a remote start.
The temperature performance of an
unoccupied seat may be reduced.
This is normal.
The remote start heated or
ventilated seats may be enabled or
disabled in the vehicle
personalization menu. See
Remote
Vehicle Start 015 and
Vehicle Personalization 0135.
Folding Seatback
The front passenger seatback
folds flat.
{Warning
If you fold the seatback forward to
carry longer objects, such as skis,
be sure any such cargo is not
near an airbag. In a crash, an
inflating airbag might force that
object toward a person. This
could cause severe injury or even
(Continued)
Warning (Continued)
death. Secure objects away from
the area in which an airbag would
inflate. For more information, see
Where Are the Airbags? 060 and
Vehicle Load Limits 0175.
{Warning
Things you put on this seatback
can strike and injure people in a
sudden stop or turn, or in a crash.
Remove or secure all items
before driving.
To fold the seatback: 1. Lower the head restraint all the way. See Head Restraints
0 37.
2. Move the seat as far back as possible. See Seat Adjustment
0 39.