GMC Terrain 2021 Owner's manual

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GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Keys, Doors, and Windows . . . . . . . . . . . . . . . 6
Seats and Restraints . . . . . . . . . . . . . . . . . . . . . 29
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Instruments and Controls . . . . . . . . . . . . . . . . 78
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Infotainment System . . . . . . . . . . . . . . . . . . . 123
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 178
Driving and Operating . . . . . . . . . . . . . . . . . . 185
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Service and Maintenance . . . . . . . . . . . . . . . 330
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . 342
Customer Information . . . . . . . . . . . . . . . . . . 346
Reporting Safety Defects . . . . . . . . . . . . . . . 354
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Connected Services . . . . . . . . . . . . . . . . . . . . . 362
Index. . . . . . . . . . . . . . . . . . . . . . . . . . 365
Introduction
The names, logos, emblems, slogans, vehicle
model names, and vehicle body designs
appearing in this manual including, but not
limited to, GM, the GM logo, GMC, the GMC
Truck Emblem, TERRAIN, and DENALI are
trademarks and/or service marks of General
Motors LLC, its subsidiaries, affiliates,
or licensors.
For vehicles first sold in Canada, substitute
the name General Motors of Canada
Company for GMC Motor Division wherever
it appears in this manual.
This manual describes features that may or
may not be on the vehicle because of
optional equipment that was not purchased
on the vehicle, model variants, country
specifications, features/applications that may
not be available in your region, or changes
subsequent to the printing of this owners
manual.
Refer to the purchase documentation
relating to your specific vehicle to confirm
the features.
Keep this manual in the vehicle for quick
reference.
Canadian Vehicle Owners
A French language manual can be obtained
from your dealer, at www.helminc.com,
or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide
en français auprès du concessionnaire ou à
l'adresse suivante:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
Litho in U.S.A.
Part No. 84443536 B Second Printing
©
2020 General Motors LLC. All Rights Reserved.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
2 Introduction
Using this Manual
To quickly locate information about the
vehicle, use the Index in the back of the
manual. It is an alphabetical list of what is
in the manual and the page number where
it can be found.
About Driving the Vehicle
As with other vehicles of this type, failure to
operate this vehicle correctly may result in
loss of control or a crash. Be sure to read
the driving guidelines in this manual in the
section called Driving and Operating and
specifically Driver Behavior 0 186, Driving
Environment 0 186, and Vehicle Design
0 186.
Danger, Warning, and Caution
Warning messages found on vehicle labels
and in this manual describe hazards and
what to do to avoid or reduce them.
{
Danger
Danger indicates a hazard with a high
level of risk which will result in serious
injury or death.
{
Warning
Warning indicates a hazard that could
result in injury or death.
Caution
Caution indicates a hazard that could
result in property or vehicle damage.
A circle with a slash through it is a safety
symbol which means Do not, Do not do
this, or Do not let this happen.
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M : Shown when the owners manual has
additional instructions or information.
* : Shown when the service manual has
additional instructions or information.
0 : Shown when there is more information
on another page see page.
Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features in this manual for
information.
u : Air Conditioning System
G : Air Conditioning Refrigerant Oil
9 : Airbag Readiness Light
! : Antilock Brake System (ABS)
$ : Brake System Warning Light
9 : Dispose of Used Components Properly
P : Do Not Apply High Pressure Water
B : Engine Coolant Temperature
_ : Flame/Fire Prohibited
H : Flammable
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Introduction 3
[ : Forward Collision Alert
R : Fuse Block Cover Lock Location
+ : Fuses
j : ISOFIX/LATCH System Child Restraints
Q : Keep Fuse Block Covers Properly
Installed
| : Lane Change Alert
@ : Lane Departure Warning
A : Lane Keep Assist
* : Malfunction Indicator Lamp
: : Oil Pressure
X : Park Assist
~ : Pedestrian Ahead Indicator
O : Power
7 : Rear Cross Traffic Alert
I : Registered Technician
/ : Remote Vehicle Start
h : Risk of Electrical Fire
> : Seat Belt Reminders
I : Side Blind Zone Alert
h : Stop/Start
7 : Tire Pressure Monitor
d : Traction Control/StabiliTrak/Electronic
Stability Control (ESC)
a : Under Pressure
V : Vehicle Ahead Indicator
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
4 Introduction
Instrument Panel Overview
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Introduction 5
1. Air Vents 0 182.
2. Turn Signal Lever. See Turn and
Lane-Change Signals 0 119.
IntelliBeam System Button (If Equipped).
See Exterior Lamp Controls 0 116.
3. Instrument Cluster (Base and Midlevel)
0 85 or
Instrument Cluster (Uplevel) 0 88.
Driver Information Center (DIC) Display.
See Driver Information Center (DIC) (Base
and Midlevel) 0 100 or
Driver Information Center (DIC) (Uplevel)
0 105.
4. Windshield Wiper/Washer 0 79.
5. Infotainment Controls. See Overview
0 124.
6. Light Sensor. See Automatic Headlamp
System 0 118.
7. Hazard Warning Flashers 0 119.
8. Climate Control Systems 0 178 (If
Equipped).
Dual Automatic Climate Control System
0 180 (If Equipped).
9. Shift Switches. See Automatic
Transmission 0 208.
10. Power Outlets 0 81.
11. Assistance Systems for Parking or Backing
0 232 (If Equipped).
12. Heated and Ventilated Front Seats 0 35
(If Equipped).
13. Wireless Charging 0 82 (If Equipped).
14. Driver Mode Control 0 218 (If Equipped).
15. Lane Keep Assist (LKA) 0 244 (If
Equipped).
Hill Descent Control (HDC) 0 217 (If
Equipped).
16. USB Port 0 134.
17. ENGINE START/STOP Button. See Ignition
Positions 0 199.
18. Steering Wheel Controls 0 126.
19. Horn 0 79.
20. Steering Wheel Adjustment 0 79 (Out
of View).
21. Hood Release. See Hood 0 259.
22. Cruise Control 0 220.
Adaptive Cruise Control (Camera) 0 222
(If Equipped).
Heated Steering Wheel 0 79 (If
Equipped).
Forward Collision Alert (FCA) System
0 237 (If Equipped).
23. Data Link Connector (DLC) (Out of View).
See Malfunction Indicator Lamp (Check
Engine Light) 0 93.
24. Electric Parking Brake 0 212.
25. Exterior Lamp Controls 0 116.
Instrument Panel Illumination Control
0 120.
Fog Lamps 0 119 (If Equipped).
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
6 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Keyless Entry (RKE) System . . . . . 7
Remote Keyless Entry (RKE) System
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 13
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 16
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 16
Automatic Door Locks . . . . . . . . . . . . . . . . . . 16
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 16
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 22
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 22
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Immobilizer Operation . . . . . . . . . . . . . . . . . . 23
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 24
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 24
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 25
Automatic Dimming Mirror . . . . . . . . . . . . . 25
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . 25
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 25
Manual Rearview Mirror . . . . . . . . . . . . . . . . 25
Automatic Dimming Rearview Mirror . . . 25
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 26
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Keys and Locks
Keys
{
Warning
Leaving children in a vehicle with a
Remote Keyless Entry (RKE) transmitter is
dangerous and children or others could
be seriously injured or killed. They could
operate the power windows or other
controls or make the vehicle move. The
windows will function with the RKE
transmitter in the vehicle, and children or
others could be caught in the path of a
closing window. Do not leave children in
a vehicle with an RKE transmitter.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 7
The key, inside the Remote Keyless Entry
(RKE) transmitter, is used for the driver door.
To remove the key, press the button near
the bottom of the transmitter, and pull the
key out. Never pull the key out without
pressing the button.
If it becomes difficult to turn the key,
inspect the key blade for debris.
See your dealer if a new key is needed.
Contact Roadside Assistance if locked out of
the vehicle. See Roadside Assistance Program
0 349.
With an active OnStar or connected service
plan, an OnStar Advisor may remotely
unlock the vehicle. See OnStar Overview
0 357.
Remote Keyless Entry (RKE)
System
See Radio Frequency Statement 0 354.
If there is a decrease in the Remote Keyless
Entry (RKE) operating range:
.
Check the distance. The transmitter may
be too far from the vehicle.
.
Check the location. Other vehicles or
objects may be blocking the signal.
.
Check the transmitter's battery. See
Battery Replacement later in this
section.
.
If the transmitter is still not working
correctly, see your dealer or a qualified
technician for service.
Remote Keyless Entry (RKE)
System Operation
The Keyless Access system allows for vehicle
entry when the Remote Keyless Entry (RKE)
transmitter is within 1 m (3 ft). See Keyless
Access Operation following.
The RKE transmitter functions may work up
to 60 m (197 ft) away from the vehicle.
Other conditions can impact the
performance of the transmitter. See Remote
Keyless Entry (RKE) System 0 7.
With Remote Start Shown, Without Similar
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
8 Keys, Doors, and Windows
Q : Press to lock all doors. The turn signal
indicators may flash and/or the horn may
sound on the second press to indicate
locking. See Vehicle Personalization 0 108.
If the driver door is open when
Q is pressed
and Open Door Anti-Lockout is enabled, all
doors will lock and then the driver door will
immediately unlock. See Vehicle
Personalization 0 108. If the passenger door
is open when
Q is pressed, all doors lock.
Pressing
Q may also arm the theft-deterrent
system. See Vehicle Alarm System 0 22.
K : Press to unlock the driver door. Press
unlock again within five seconds to unlock
all doors. The RKE transmitter can be
programmed to unlock all doors on the first
button press. See Vehicle Personalization
0 108. When remotely unlocking the vehicle
at night the fog lamps and back-up lamps
will come on for about 20 seconds to light
your approach to the vehicle. The turn
signal indicators may flash to indicate
unlocking. See Vehicle Personalization 0 108.
Pressing
K will disarm the theft-deterrent
system. See Vehicle Alarm System 0 22.
If equipped, press and hold
K to remotely
open all of the windows, if enabled. See
Vehicle Personalization 0 108.
/ : If equipped, press and release Q and
then immediately press and hold
/ for at
least four seconds to start the engine from
outside the vehicle using the RKE
transmitter. See Remote Vehicle Start 0 13.
7 : Press and release one time to initiate
vehicle locator. The exterior lamps flash and
the horn chirps three times. Press and hold
7 for three seconds to sound the panic
alarm. The horn sounds and the turn signal
lamps flash for 30 seconds, or until
7 is
pressed again or the vehicle is started.
b : Press twice quickly to open or close
the liftgate.
Press once to stop the liftgate from moving.
Keyless Access Operation
With the Keyless Access system, you can
lock and unlock the doors and access the
liftgate without removing the RKE
transmitter from your pocket, purse,
briefcase, etc. The RKE transmitter should be
within 1 m (3 ft) of the liftgate or door being
opened.
Keyless Access can be programmed to
unlock all doors on the first lock/unlock
press from the driver door. See Vehicle
Personalization 0 108.
If equipped with memory seats, RKE
transmitters 1 and 2 are linked to the
seating positions of memory 1 or 2. See
Memory Seats 0 33.
Keyless Unlocking/Locking from the
Driver Door
When the doors are locked and the RKE
transmitter is within 1 m (3 ft) of the driver
door handle, pressing the lock/unlock button
on the driver door handle will unlock the
driver door. If the lock/unlock button is
pressed again within five seconds, all
passenger doors will unlock.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 9
Driver Shown, Passenger Similar
Pressing the lock/unlock button will cause
all doors to lock if any of the following
occur:
.
It has been more than five seconds since
the first lock/unlock button press.
.
Two lock/unlock button presses were
used to unlock all doors.
.
Any vehicle door has opened and all
doors are now closed.
Keyless Unlocking/Locking from Passenger
Doors
When the doors are locked and the RKE
transmitter is within 1 m (3 ft) of the door
handle, pressing the lock/unlock button on
that door handle will unlock all doors.
Pressing the lock/unlock button will cause
all doors to lock if any of the following
occur:
.
The lock/unlock button was used to
unlock all doors.
.
Any vehicle door has opened and all
doors are now closed.
Passive Locking
If equipped with Keyless Access, this vehicle
will lock several seconds after all doors are
closed if the vehicle is off and at least one
RKE transmitter has been removed or none
remain in the interior.
If other electronic devices interfere with the
RKE transmitter signal, the vehicle may not
detect the RKE transmitter inside the vehicle.
If passive locking is enabled, the doors may
lock with the RKE transmitter inside the
vehicle. Do not leave the RKE transmitter in
an unattended vehicle.
To customize the doors to automatically lock
when exiting the vehicle, see Remote Lock,
Unlock, Start under Vehicle Personalization
0 108.
Temporary Disable of Passive Locking
Temporarily disable passive locking by
pressing and holding
K on the interior door
switch with a door open for at least
four seconds, or until three chimes are
heard. Passive locking will then remain
disabled until
Q on the interior door is
pressed, or until the vehicle is turned on.
Remote Left in Vehicle Alert
When the vehicle is turned off and an RKE
transmitter is left in the vehicle, the horn
will chirp three times after all doors are
closed. To turn on or off, see Vehicle
Personalization 0 108.
Remote No Longer in Vehicle Alert
If the vehicle is on, with a door open and
then all doors are closed, the vehicle will
check for RKE transmitters inside. If an RKE
transmitter is not detected, the Driver
Information Center (DIC) will display NO
REMOTE DETECTED and the horn will chirp
three times. This occurs only once each time
the vehicle is driven.
Keyless Liftgate Opening
Press the touch pad on the liftgate handle
to open the liftgate if the RKE transmitter is
within 1 m (3 ft).
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
10 Keys, Doors, and Windows
Key Access
To access a vehicle with a dead transmitter
battery, see Door Locks 0 14.
Programming Transmitters to the Vehicle
Only RKE transmitters programmed to the
vehicle will work. If a transmitter is lost or
stolen, a replacement can be purchased and
programmed through your dealer. The
vehicle can be reprogrammed so that lost or
stolen transmitters no longer work. Each
vehicle can have up to eight transmitters
matched to it.
Programming with Recognized Transmitters
A new transmitter can be programmed to
the vehicle when there are two recognized
transmitters.
To program, the vehicle must be off and all
of the transmitters, both currently
recognized and new, must be with you.
1. Remove the key from the RKE
transmitter.
2. Place the two recognized transmitters in
the cupholder.
3. Remove the key lock cylinder cap on the
driver door handle. See Door Locks 0 14.
Insert the vehicle key of the new
transmitter into the key lock cylinder on
the driver door handle and turn the key,
counterclockwise, to the unlock position
five times within 10 seconds.
The DIC displays READY FOR REMOTE #3,
4, 5, ETC.
4. Remove the two recognized transmitters
from the cupholder.
5. Place the new transmitter into the
cupholder.
6. Press ENGINE START/STOP. When the
transmitter is learned the DIC display
will show that it is ready to program the
next transmitter.
7. Remove the transmitter from the
cupholder and press
K or Q on the RKE
transmitter.
To program additional transmitters,
repeat Steps 46.
When all additional transmitters are
programmed, press and hold ENGINE
START/STOP for 12 seconds to exit
programming mode.
8. Put the key back into the transmitter.
9. Replace the key lock cylinder cap. See
Door Locks 0 14.
Programming without Recognized
Transmitters
If two currently recognized transmitters are
not available, follow this procedure to
program up to eight transmitters. This
feature is not available in Canada. This
procedure will take approximately
30 minutes to complete. The vehicle must
be off and all of the transmitters you wish
to program must be with you.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 11
1. Remove the key from the RKE
transmitter.
2. Remove the key lock cylinder cap on the
driver door handle. See Door Locks 0 14.
Insert the vehicle key of the transmitter
into the key lock cylinder on the driver
door handle and turn the key,
counterclockwise, to the unlock position
five times within 10 seconds.
The DIC displays REMOTE LEARN
PENDING, PLEASE WAIT.
3. Wait for 10 minutes until the DIC
displays PRESS ENGINE START BUTTON TO
LEARN and then press ENGINE
START/STOP.
The DIC display will again show REMOTE
LEARN PENDING, PLEASE WAIT.
4. Repeat Step 2 two additional times. After
the third time all previously known
transmitters will no longer work with the
vehicle. Remaining transmitters can be
relearned during the next steps.
The DIC display should now show READY
FOR REMOTE # 1.
5. Place the new transmitter into the
cupholder.
6. Press ENGINE START/STOP. When the
transmitter is learned the DIC display
will show that it is ready to program the
next transmitter.
7. Remove the transmitter from the
cupholder and press
K or Q on the RKE
transmitter.
To program additional transmitters,
repeat Steps 46.
When all additional transmitters are
programmed, press and hold ENGINE
START/STOP for 12 seconds to exit
programming mode.
8. Put the key back into the transmitter.
9. Replace the key lock cylinder cap. See
Door Locks 0 14.
Starting the Vehicle with a Low
Transmitter Battery
When the vehicle is started, if the
transmitter battery is weak, the DIC may
display NO REMOTE DETECTED or NO
REMOTE KEY WAS DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN START YOUR
VEHICLE. The DIC may also display REPLACE
BATTERY IN REMOTE KEY.
To start the vehicle:
1. Place the transmitter in the cupholder.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
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12 Keys, Doors, and Windows
2. With the vehicle in P (Park) or
N (Neutral), press the brake pedal and
ENGINE START/STOP.
Replace the transmitter battery as soon
as possible.
Battery Replacement
{
Warning
Never allow children to play with the RKE
transmitter. The transmitter contains a
small battery, which can be a choking
hazard. If swallowed, internal burns can
occur, resulting in severe injury or death.
Seek medical attention immediately if a
battery is swallowed.
{
Warning
To avoid personal injury, do not touch
metal surfaces on the RKE transmitter
when it has been exposed to extreme
heat. These surfaces can be hot to the
touch at temperatures above 59 °C (138
°F).
Caution
When replacing the battery, do not touch
any of the circuitry on the transmitter.
Static from your body could damage the
transmitter.
Caution
Always replace the battery with the
correct type. Replacing the battery with
an incorrect type could potentially create
a risk of battery explosion. Dispose of
used batteries according to instructions
and local laws. Do not attempt to burn,
crush, or cut the used battery, and avoid
exposing the battery to environments
with extremely low air pressures or high
temperatures.
Replace the battery in the transmitter soon
if the DIC displays REPLACE BATTERY IN
REMOTE KEY.
To replace the battery:
1. Press the button on the side of the RKE
transmitter to pull out the key. Never
pull the key out without pressing the
button.
2. Insert a flat, thin object in the center of
the transmitter to separate and remove
the back cover.
3. Lift the battery with a flat object.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 13
4. Remove the battery.
5. Insert the new battery, positive side
toward the back cover. Replace with a
CR2032 or equivalent battery.
6. Push together the transmitter.
7. Reinsert the key.
Remote Vehicle Start
If equipped, this feature allows you to start
the engine from outside the vehicle.
/ : This button will be on the RKE
transmitter if the vehicle has remote start.
The climate control system will use the
previous settings during a remote start. The
rear defog may come on during remote
start based on cold ambient conditions. The
rear defog indicator light does not come on
during remote start.
If equipped with heated and ventilated front
seats, they may come on during a remote
start. See Heated and Ventilated Front Seats
0 35.
If equipped with a heated steering wheel, it
may come on during a remote start. See
Heated Steering Wheel 0 79.
Laws in some local communities may restrict
the use of remote starters. For example,
some laws require a person using remote
start to have the vehicle in view. Check local
regulations for any requirements.
Do not use the remote start feature if the
vehicle is low on fuel. The vehicle could run
out of fuel.
Other conditions can affect the performance
of the transmitter. See Remote Keyless Entry
(RKE) System 0 7.
Starting the Engine Using Remote Start
1. Press and release
Q on the RKE
transmitter.
2. Immediately press and hold
/ for at
least four seconds or until the turn
signal lamps flash. The turn signal lamps
flashing confirms the request to remote
start the vehicle has been received.
The parking lamps will turn on and
remain on as long as the engine is
running. The vehicle's doors will be
locked.
3. Turn the ignition on before driving.
The engine will shut off after 15 minutes
unless a time extension is done or the
ignition is turned on.
Extending Engine Run Time
For a 15-minute extension, after 30 seconds
repeat Steps 1 and 2 while the engine is still
running. The remote start can be
extended once.
When the remote start is extended, the
second 15 minutes will be added for a total
of 30 minutes.
A maximum of two remote starts or a start
with an extension are allowed between
ignition cycles.
The ignition must be turned on and then
back off to use remote start again.
Canceling a Remote Start
To shut off the engine:
.
Press and hold / until the parking lamps
turn off.
.
Turn on the hazard warning flashers.
.
Turn the ignition on and then off.
Conditions in Which Remote Start Will
Not Work
The remote vehicle start feature will not
operate if:
.
A transmitter is in the vehicle.
.
The vehicle is on.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
14 Keys, Doors, and Windows
.
The hood is not closed.
.
The hazard warning flashers are on.
.
There is an emission control system
malfunction.
.
The engine coolant temperature is
too high.
.
The oil pressure is low.
.
Two remote vehicle starts or a start with
an extension have already been used.
.
The vehicle is not in P (Park).
Remote Start Ready
If the vehicle does not have the remote
vehicle start feature, it may have the
remote start ready feature. This feature
allows your dealer to add the
manufacturer's remote vehicle start feature.
See your dealer to add the manufacturer's
remote vehicle start feature to the vehicle.
Door Locks
{
Warning
Unlocked doors can be dangerous.
.
Passengers, especially children, can
easily open the doors and fall out of a
moving vehicle. The doors can be
(Continued)
Warning (Continued)
unlocked and opened while the vehicle
is moving. The chance of being thrown
out of the vehicle in a crash is
increased if the doors are not locked.
So, all passengers should wear seat
belts properly and the doors should be
locked whenever the vehicle is driven.
.
Young children who get into unlocked
vehicles may be unable to get out.
A child can be overcome by extreme
heat and can suffer permanent injuries
or even death from heat stroke.
Always lock the vehicle whenever
leaving it.
.
Outsiders can easily enter through an
unlocked door when you slow down
or stop the vehicle. Locking the doors
can help prevent this from happening.
To lock or unlock the door from outside the
vehicle:
.
Press Q or K on the Remote Keyless
Entry (RKE) transmitter. See Remote
Keyless Entry (RKE) System Operation 0 7.
.
Use the key in the driver door. The key
cylinder is covered with a cap.
To lock or unlock the door from inside the
vehicle:
.
Press Q or K on the power door lock
switch.
.
Push down on a door lock knob to lock
a door.
.
Pull the door handle once to unlock the
door. Pull the handle again to unlatch it.
Keyless Access
The RKE transmitter must be within 1 m
(3 ft) of the liftgate or door being opened.
Press the button on the door handle to
open. See Keyless Access Operation in
Remote Keyless Entry (RKE) System
Operation 0 7.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 15
Driver Door Key Lock Cylinder Access (In
Case of Dead Battery)
To access the driver door key lock cylinder:
1. Pull the door handle (1) to the open
position and hold it open until cap
removal is complete.
2. Insert the key into the slot (3) on the
bottom of the cap (2) and lift the key
upward.
3. Move the cap (2) rearward and remove.
4. Use the key in the cylinder.
To replace the cap:
1. Pull the door handle (1) to the open
position and hold it open until cap
installation is complete.
2. Insert the two tabs (6) at the back of the
cap between the seal (5) and the metal
base (4).
3. Slide the cap forward and press the
forward edge to install the cap in place.
4. Release the door handle.
5. Check that the cap is secure.
Free-Turning Locks
The door key lock cylinder turns freely when
either the wrong key is used, or the correct
key is not fully inserted. The free-turning
door lock feature prevents the lock from
being forced open. To reset the lock, turn it
to the vertical position with the correct key
fully inserted. Remove the key and insert it
again. If this does not reset the lock, turn
the key halfway around in the cylinder and
repeat the reset procedure.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
16 Keys, Doors, and Windows
Power Door Locks
Q : Press to lock the doors. The indicator
light in the switch will come on when the
door is locked.
K : Press to unlock the doors.
Delayed Locking
This feature delays the actual locking of the
doors until five seconds after all doors are
closed.
Delayed locking can only be turned on when
the Open Door Anti-Lockout feature has
been turned off.
When
Q is pressed on the power door lock
switch with the door open, a chime will
sound three times indicating that delayed
locking is active.
The doors will then lock automatically
five seconds after all doors are closed. If a
door is reopened before five seconds have
elapsed, the five-second timer will reset once
all the doors are closed again.
Press
Q on the door lock switch again,
or press
Q on the RKE transmitter, to
override this feature and lock the doors
immediately.
Delayed locking can be programmed. See
Vehicle Personalization 0 108.
Automatic Door Locks
The doors will lock automatically when all
doors are closed, the ignition is on, and the
vehicle is shifted out of P (Park).
If a vehicle door is unlocked and then
opened and closed, the doors will lock either
when your foot is removed from the brake
or the vehicle speed becomes faster than
13 km/h (8 mph).
To unlock the doors:
.
Press K on the power door lock switch.
.
Shift into P (Park).
Automatic door locking cannot be disabled.
Automatic door unlocking can be
programmed. See Vehicle Personalization
0 108.
Lockout Protection
If the ignition is on or in ACC/ACCESSORY
and the power door lock switch is pressed
with the driver door open, all the doors will
lock and only the driver door will unlock.
If the vehicle is off and locking is requested
while a door is open, when all doors are
closed the vehicle will check for RKE
transmitters inside. If an RKE transmitter is
detected and the number of RKE
transmitters inside has not reduced, the
driver door will unlock and the horn will
chirp three times.
Lockout Protection can be manually
overridden by pressing and holding
Q on
the power door lock switch. This does not
apply to Open Door Anti-Lockout.
Open Door Anti-Lockout
If Open Door Anti-Lockout is turned on, the
driver door is open, and locking is requested,
all the doors will lock and only the driver
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 17
door will unlock. The Open Door
Anti-Lockout feature can be turned on or off.
See Vehicle Personalization 0 108.
Safety Locks
The rear door safety locks prevent
passengers from opening the rear doors
from inside the vehicle.
Manual Safety Locks
If equipped, the safety lock is on the inside
edge of the rear doors. To use the
safety lock:
1. Move the lever down to the lock
position.
2. Close the door.
3. Do the same for the other rear door.
To open a rear door when the safety lock
is on:
1. Unlock the door by activating the inside
handle, by pressing the power door lock
switch, or by using the Remote Keyless
Entry (RKE) transmitter.
2. Open the door from the outside.
When the safety lock is enabled, adults and
older children will not be able to open the
rear door from the inside. Cancel the safety
locks to enable the doors to open from the
inside.
To cancel the safety lock:
1. Unlock the door and open it from the
outside.
2. Move the lever up to unlock. Do the
same for the other door.
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.
.
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.
(Continued)
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
18 Keys, Doors, and Windows
Warning (Continued)
.
If the vehicle is equipped with a
power liftgate, disable the power
liftgate function.
See Engine Exhaust 0 207.
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, press K on the
power door lock switch or press
K on the
Remote Keyless Entry (RKE) transmitter
twice within five seconds. See Remote
Keyless Entry (RKE) System Operation 0 7.
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 0 7.
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.
Caution
Driving with an open and unsecured
liftgate may result in damage to the
power liftgate components.
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 19
The power liftgate switch is on the driver
door. The vehicle must be in P (Park). The
taillamps flash when the power liftgate
moves.
The modes are:
.
MAX: Opens to maximum height.
.
3/4: Opens to a reduced height that can
be set from 3/4 to fully open. Use to
prevent the liftgate from opening into
overhead obstructions such as a garage
door or roof-mounted cargo. The liftgate
can be manually opened all the way.
.
OFF: Opens manually only.
To power open or close the liftgate, select
MAX or 3/4 mode.
.
Press b twice quickly on the RKE
transmitter until the liftgate moves.
.
Press 8 on the driver door. The driver
door must be unlocked.
.
Press the touch pad on the bottom of the
liftgate after unlocking all doors.
If equipped with Keyless Access, a locked
vehicle can be opened if the RKE
transmitter is within 1 m (3 ft) of the
liftgate.
.
Press l on the bottom of the liftgate
next to the pull cup to close.
Press any liftgate button, the touch pad,
or
b on the RKE transmitter while the
liftgate is moving to stop it. Pressing any
liftgate button or pressing
b twice quickly
on the RKE transmitter again restarts the
operation in the reverse direction. Pressing
the touch pad on the liftgate handle will
restart the motion, but only in the opening
direction.
Caution
Manually forcing the liftgate to open or
close during a power cycle can damage
the vehicle. Allow the power cycle to
complete.
The power liftgate may be temporarily
disabled under extreme low temperatures,
or after repeated power cycling over a short
period of time. 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 will continue to completion. If the
vehicle is accelerated before the liftgate has
completed moving, the liftgate may stop or
reverse direction. Check for Driver
Information Center (DIC) messages and make
sure the liftgate is closed and latched before
driving.
Falling Liftgate Detection
If the power liftgate automatically closes
after a power opening cycle, it indicates that
the system is reacting to excess weight on
the liftgate or a possible support strut
failure. A repetitive chime will sound while
the falling liftgate detection feature is
operating. Remove any excess weight. If the
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GMC Terrain 2021 Owner's manual

Category
Cars
Type
Owner's manual
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