sunroof GMC TERRAIN 2020 Owner's Manual

Insert to the 2020 GMC Terrain/Terrain Denali Owner's Manual - 2020 - Insert -
1/13/20
This information replaces the
information under“Roof Rack
System” found in the Storage
Section of the owner ’s manual.
The vehicle is equipped with
side-rails for a roof rack system.
Cargo must be secured with
properly installed cross rails and
other accessories designed to carry
cargo. These can be purchased
from your dealer.
{Warning
Before driving and occasionally
during a trip, check that cargo is
securely fastened, rests evenly
between the cross rails and does
not block the vehicle's lamps or (Continued)
Warning (Continued)
windows. Never load cargo
directly on the roof of the vehicle
or allow cargo to hang over the
rear or sides of the vehicle. Never
load cargo without first properly
installing cross rails and other
accessories designed to carry
cargo. Personal injury, death or
damage to the vehicle or other
property may occur.
If driving for a long distance, on
rough roads, or at high speeds,
occasionally stop the vehicle to
make sure the cargo remains in its
place.
Cargo Weight Limits
Do not exceed the maximum cargo
weight for the roof rack system,
including the weight of the cross
rails and any other accessories
used to carry the cargo such as bike
racks or roof boxes.
For all trim levels except Denali, the
maximum cargo weight that can be
loaded onto the roof rack system is
100 kg (220 lb).
For Denali, the maximum weight is
as follows:
Front-Wheel Drive
.With Sunroof: 40 kg (88 lb)
. Without Sunroof: 65 kg (143 lb)
Litho in U.S.A.
Part No. 84909318©2020 General Motors LLC. All Rights Reserved.
Insert to the 2020 GMC Terrain/Terrain Denali Owner's Manual

Insert to the 2020 GMC Terrain/Terrain Denali Owner's Manual - 2020 - Insert -
1/13/20
2
All-Wheel Drive
.With Sunroof: 25 kg (55 lb)
. Without Sunroof: 50 kg (110 lb)
{Warning
Never load the roof rack with
more weight than specified in this
section or in the instructions that
came with cross rails and other
roof rack accessories, whichever
is less. Loading cargo on the roof
rack will make the vehicle's center
of gravity higher. To avoid losing
control of the vehicle, avoid high
speeds, sudden starts, sharp
turns, sudden braking, or abrupt
maneuvers when carrying cargo
on the roof rack. The weight of any cargo carried on
the roof rack system must be
included in calculating the loaded
weight of the vehicle. Do not exceed
the maximum vehicle capacity when
loading the vehicle, including cargo
carried on the roof rack system,
passengers and cargo carried in the
vehicle. For more information on
vehicle capacity and loading, see
Vehicle Load Limits.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Keys, Doors, and Windows 7
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . 15
Door Locks . . . . . . . . . . . . . . . . . . . . 17
Power Door Locks . . . . . . . . . . . . . 19
Delayed Locking . . . . . . . . . . . . . . . 19
Automatic Door Locks . . . . . . . . . 20
Lockout Protection . . . . . . . . . . . . . 20
Safety Locks . . . . . . . . . . . . . . . . . . . 20
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 21
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . 27
Vehicle Alarm System . . . . . . . . . 27
Immobilizer . . . . . . . . . . . . . . . . . . . . 28
Immobilizer Operation . . . . . . . . . 28
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 29
Power Mirrors . . . . . . . . . . . . . . . . . . 30 Folding Mirrors . . . . . . . . . . . . . . . . . 30
Heated Mirrors . . . . . . . . . . . . . . . . . 30
Automatic Dimming Mirror . . . . . 30
Reverse Tilt Mirrors . . . . . . . . . . . . 30
Interior Mirrors
Interior Rearview Mirrors . . . . . . . 31
Manual Rearview Mirror . . . . . . . . 31
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 31
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 31
Power Windows . . . . . . . . . . . . . . . 32
Sun Visors . . . . . . . . . . . . . . . . . . . . . 33
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 34
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-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
34 Keys, Doors, and Windows
Roof
Sunroof
1. Sunroof Switch
2. Sunshade Switch
If equipped, the sunroof only
operates when the ignition is on or
in ACC/ACCESSORY, or when
Retained Accessory Power (RAP) is
active. SeeIgnition Positions 0179
and
Retained Accessory Power (RAP)
0 187. Sunroof Switch
Vent :
From the closed position,
press and release
e(1) to vent
the sunroof. Press and release
g(1) to close the vent.
Express-Open/Express-Close : To
express-open the sunroof, press
and release
e(1). Press and
release
e(1) at any time to stop
movement. To express-close the
sunroof, press and release
g(1).
Press and release
g(1) at any
time to stop movement.
Open/Close (Manual Mode) : To
open the sunroof, press and hold
e(1) until the sunroof reaches
the desired position. To close the
sunroof, press and hold
g(1).
Comfort Stop : The sunroof has a
comfort stop feature that stops the
sunroof from opening fully. Press
and release the rear of
gto
move the sunroof to the partially
opened comfort stop position. Pressing the rear of
gagain will
open the sunroof fully. If the
sunshade is not fully open when the
comfort stop feature is pressed the
second time, the sunshade will open
fully.
Sunshade Switch
Express-open/Express-close : To
express-open the sunshade, press
and release
r(2). Press and
release
r(2) at any time to stop
movement. To express-close the
sunshade, press and release
Q(2). Press and release
Q(2) at any time to stop
movement.
Open/Close (Manual Mode) : To
open the sunshade, press and hold
r(2) until the sunshade reaches
the desired position. To close the
sunshade, press and hold
Q(2).

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Keys, Doors, and Windows 35
When the sunroof is opened, an air
deflector will automatically raise.
The air deflector will retract when
the sunroof is closed.
The sunroof cannot be opened or
closed if the vehicle has an
electrical failure.
Automatic Reversal System
The sunroof has an automatic
reversal system that is only active
when the sunroof is operated in
express-close mode.
If an object is in the path while
express closing, the reversal system
will detect the object, stop, and
open the sunroof slightly.
If frost or other conditions prevent
closing, override the feature by
closing the sunroof in manual mode.
To stop movement, release the
switch.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
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.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Driving and Operating 187
Warning (Continued)
.Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension
cord in good operating
condition, or using a
damaged heater or
extension cord, could make
it overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater
cord and thermostat
damage could occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
(Continued)
Warning (Continued)
.Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Retained Accessory
Power (RAP)
When the ignition is turned from on
to off, the following features (if
equipped) will continue to function
for up to 10 minutes, or until the
driver door is opened. These
features will also work when the
ignition is in RUN or ACC/
ACCESSORY:
. Infotainment System .
Power Windows (during RAP
this functionality will be lost
when any door is opened)
. Sunroof (during RAP this
functionality will be lost when
any door is opened)
. Auxiliary Power Outlet
. Audio System
. OnStar System
Shifting Into Park
{Warning
It can be dangerous to get out of
the vehicle if the vehicle is not in
P (Park) with the parking brake
set. The vehicle can roll. If you
have left the engine running, the
vehicle can move suddenly. You
or others could be injured. To be
sure the vehicle will not move,
even when you are on fairly level
ground, use the steps that follow.
If you are pulling a trailer, see
Driving Characteristics and
Towing Tips 0262.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/5/19
Vehicle Care 313
FusesUsage
F1 Exhaust fuel heater/Selective
catalytic reduction
power module
(diesel only)
F2 Liftgate
F3 Trailer auxiliary power
F4 Passenger Power Seat
F5 Memory seat module
F6 Sunroof
F7 Side blind zone alert
F8 Trailer reverse lamps
F9 Rear heated seat 1
F10 Park Lamps F11 Rear heated seat 2
F12 –
F13 Trailer parking lamp Fuses
Usage
F14 Right trailer stoplamp/Turn
signal lamp
F15 Left parking lamp
F16 Right parking lamp
F17 Video processing module
F18 Left trailer stoplamp/Turn
signal lamp
F19 All-wheel drive
F20 Lumbar
F21 Rear auxiliary power outlet
F22 Rear drive unit
Relays Usage
K1 Right trailer stoplamp/Turn
signal lamp
K2 Trailer reverse lamps

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Service and Maintenance 369
.Inspect brake system. See
Exterior Care 0356.
. Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the
rubber boots, loose or missing
parts, or signs of wear at least
once a year. See Exterior Care
0 356.
. Inspect power steering for
proper attachment, connections,
binding, leaks, cracks,
chafing, etc.
. Visually inspect halfshafts and
drive shafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
loose or missing fasteners, and
axle seal leaks.
. Check restraint system
components. See Safety System
Check 057. .
Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0356.
. Check starter switch. See Starter
Switch Check 0299.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 300.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open ability is low, service the
gas strut. See Gas Strut(s)
0 302. .
Check tire sealant expiration
date, if equipped. See Tire
Sealant and Compressor Kit
0 336.
. Inspect sunroof track and seal,
if equipped. See Sunroof034.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13556230) - 2020 - CRC - 9/4/19
418 Index
Rearview Mirrors . . . . . . . . . . . . . . . . 31Automatic Dimming . . . . . . . . . . . . . 31
Reclining Seatbacks . . . . . . . . . . . . . 40
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . 248, 249
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 377
Records Maintenance . . . . . . . . . . . . . . . . . . 380
Recreational Vehicle Towing . . . . 353
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . 388
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . . 15
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 70
Maintenance . . . . . . . . . . . . . . . . . . 378
Replacing Airbag System . . . . . . . . 70
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . . 84
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . 58
Reporting Safety Defects Canadian Government . . . . . . . . 396
General Motors . . . . . . . . . . . . . . . 396
U.S. Government . . . . . . . . . . . . . 395 Restraints
Where to Put . . . . . . . . . . . . . . . . . . . 76
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . 187
Reverse Tilt Mirrors . . . . . . . . . . . . . . 30
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 171
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 389
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 34
Roof Rack System . . . . . . . . . . . . . . . 93
Rotation, Tires . . . . . . . . . . . . . . . . . . 328
Routing, Engine Drive Belt . . . . . . 384
Running out of Fuel . . . . . . . . . . . . . 256
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 192
S
Safety Defects ReportingCanadian Government . . . . . . . . 396
General Motors . . . . . . . . . . . . . . . 396
U.S. Government . . . . . . . . . . . . . 395
Safety Locks . . . . . . . . . . . . . . . . . . . . . 20
Safety System Check . . . . . . . . . . . . 57
Scheduling Appointments . . . . . . . 391
Sealant Kit, Tire . . . . . . . . . . . . . . . . 336
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 50 Seat Belts (cont'd)
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Extender . . . . . . . . . . . . . . . . . . . . . . . . 57
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . 51
Lap-Shoulder Belt . . . . . . . . . . . . . . 53
Reminders . . . . . . . . . . . . . . . . . . . . .113
Replacing after a Crash . . . . . . . . 58
Use During Pregnancy . . . . . . . . . . 56
Seats Adjustment, Front . . . . . . . . . . . . . . . 39
Folding Seatback . . . . . . . . . . . . . . . 45
Head Restraints . . . . . . . . . . . . . . . . 37
Heated and Ventilated Front . . . . 44
Heated, Rear . . . . . . . . . . . . . . . . . . . 49
Lumbar Adjustment, Front . . . . . . 40
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Adjustment, Front . . . . . . . 39
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Reclining Seatbacks . . . . . . . . . . . . 40
Securing Child Restraints . . . . 85, 87
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 123
OnStar . . . . . . . . . . . . . . . . . . . . . . . 401
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 27
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 27
Service . . . . . . . . . . . . . . . . . . . . . . . . . 159