
GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Vehicle Care 353
If the vehicle only has a
cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using
the air compressor.
8. Press the on/off button (5) to turn the tire sealant and
compressor kit on.
The compressor will inflate the
tire with air only.
9. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (8). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0332.
The pressure gauge (8) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 25 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. See
Roadside
Assistance Program 0399.
10. Press the on/off button (5) to turn the tire sealant and
compressor kit off.
Be careful while handling the
compressor as it could be
warm after usage.
11. Unplug the power plug (9) from the accessory power outlet in
the vehicle. 12. Turn the air only hose (10)
counterclockwise to remove it
from the tire valve stem.
13. Replace the tire valve stem cap.
14. Return the air only hose (10) and power plug (9) back to
their original storage location.
15. Return the equipment to its original storage location in the
vehicle.
The tire sealant and compressor kit
has accessory adapters located in a
compartment on the bottom of its
housing that can be used to inflate
air mattresses, balls, etc.
Storing the Tire Sealant
and Compressor Kit
The tire sealant and compressor kit
is in a bag in the rear compartment
storage area. 1. Open the liftgate. See Liftgate
0 42.
2. Fold the rear part of the load floor to the front.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
366 Vehicle Care
5. Follow the dolly manufacturer'sinstructions for preparing the
vehicle and dolly for towing.
6. Open the driver door and leave it open.
7. Shift to N (Neutral).
8. Ensure the parking brake is released.
9. Turn off the vehicle and release the brake pedal.
10. The vehicle should continue to be in N (Neutral). If it is not,
restart the engine and repeat
Steps 6-8.
11. Release the hood.
12. Lock the vehicle doors, with the driver door still open.
13. Exit the vehicle with the RKE transmitter.
14. Open the hood.
15. Disconnect the negative (–) terminal connector from the
12-volt battery.
16. Close and latch the hood.
17. Close the driver door.Caution
If 105 km/h (65 mph) is exceeded
while towing the vehicle, it could
be damaged. Never exceed
105 km/h (65 mph) while towing
the vehicle.
Towing the Vehicle from
the Rear
Caution
Towing the vehicle from the rear
could damage it. Also, repairs
would not be covered by the
vehicle warranty. Never have the
vehicle towed from the rear.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 371
pads for wear and rotors for surface
condition. Inspect all other brake
parts for cracks and leaks.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, steel
fuel door hinge, and power assist
step hinges, unless the components
are plastic. Applying silicone grease
on weatherstrips with a clean cloth
will make them last longer, seal
better, and not stick or squeak.
Underbody Maintenance
At least twice a year, spring and fall,
use plain water to flush any
corrosive materials from the
underbody. Take care to thoroughly
clean any areas where mud and
other debris can collect.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon
and attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface. See“Finish Care”
previously in this section.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils.
Newspapers or dark garments can
transfer color to the vehicle’s
interior.
Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Using a mild
soap solution, immediately remove

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
OnStar 411
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase. Press
Qto set up an account.
. After change in ownership and
at 90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can cancel or change account
information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately to
terminate your OnStar or connected
services if the vehicle is disposed
of, sold, transferred, or if the
lease ends.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
or connected service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Remote
Services, Roadside Assistance, and
Hands-Free Calling are available on
most vehicles. Not all OnStar
services are available everywhere
or on all vehicles. For more
information, a full description of
OnStar services, system limitations,
and OnStar User Terms, Privacy
Statement, and Software Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada).
. Call TTY 1-877-248-2080.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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OnStar 413
Languages
The vehicle can be programmed to
respond in multiple languages.
Press
Qand ask for an Advisor.
Advisors are available in English,
Spanish, and French. Available
languages may vary by country.
Potential Issues
OnStar cannot perform Remote
Door Unlock or Stolen Vehicle
Assistance after the vehicle has
been off continuously for 10 days
without an ignition cycle. If the
vehicle has not been started for
10 days, OnStar can contact
Roadside Assistance or a locksmith
to help gain access to the vehicle.
Global Positioning
System (GPS)
. Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels and
underpasses; or in an area with
very dense trees. If GPS signals
are not available, the OnStar
system should still operate to call OnStar. However, OnStar
could have difficulty identifying
the exact location.
. In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.
A temporary loss of GPS can cause
loss of the ability to send a
Turn-by-Turn Navigation route. The
Advisor may give a verbal route or
may ask for a call back after the
vehicle is driven into an open area.
Cellular and GPS Antennas
Cellular reception is required for
OnStar to send remote signals to
the vehicle. Do not place items over
or near the antenna to prevent
blocking cellular and GPS signal
reception.
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message may come on. Press
Qto try the
call again or try again after driving a
few miles into another cellular area.
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not operate if the battery is
discharged or disconnected.
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment 0282. Added electrical
equipment may interfere with the
operation of the OnStar system and
cause it to not operate.
Vehicle Software Updates
OnStar or GM may remotely deliver
software updates or changes to the
vehicle without further notice or
consent. These updates or changes
may enhance or maintain safety,

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Connected Services 419
vehicles, the SSID and
password can be changed in
the Wi-Fi Hotspot menu.
After initial set-up, your vehicle’s
Wi-Fi hotspot will connect
automatically to your mobile
devices. Manage data usage by
turning Wi-Fi on or off on your
mobile device, using the myGMC
mobile app, or by contacting an
OnStar Advisor. On some vehicles,
Wi-Fi can also be managed from the
Wi-Fi Hotspot menu.
MyGMC Mobile App (If Available)
Download the myGMC mobile app
to compatible Apple and Android
smartphones. GMC users can
access the following services from a
smartphone:
. Remotely start/stop the vehicle,
if factory-equipped.
. Lock/unlock doors, if equipped
with automatic locks.
. Activate the horn and lamps. .
Check the vehicle’s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
. Send destinations to the vehicle.
. Locate the vehicle on a map
(U.S. market only).
. Turn the vehicle's Wi-Fi hotspot
on/off, manage settings, and
monitor data consumption,
if equipped.
. Locate a dealer and schedule
service.
. Request roadside assistance.
. Set a parking reminder with pin
drop, take a photo, make a note,
and set a timer.
. Connect with GMC on social
media.
Features are subject to change. For
myGMC mobile app information and
compatibility, see my.gmc.com.
An active OnStar or connected
service plan may be required.
A compatible device,
factory-installed remote start, and power locks are required. Data rates
apply. See www.onstar.com for
details and system limitations.
Remote Services
Contact an OnStar Advisor to
unlock the doors or sound the horn
and flash the lamps.
Marketplace
OnStar Advisors can provide offers
from restaurants and retailers on
your route, help locate hotels,
or book a room. These services
vary by market.
OnStar Hands-Free Calling
Make and receive calls with the
built-in wireless calling service,
which requires available minutes.
Functionality of the Voice Command
button may vary by vehicle and
region. For some vehicles, press
=
to open the OnStar app on the
infotainment display, then select
Hands-Free calling. For other
vehicles press
=as follows.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12146071) - 2019 - crc - 7/27/18
422 Index
Assistance Systems forParking and Backing . . . . . . . . . . 243
Auto Stop Stop/Start System . . . . . . . . . . . . 199
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 52
Door Locks . . . . . . . . . . . . . . . . . . . . . 41
Forward Braking . . . . . . . . . . . . . . 252
Headlamp System . . . . . . . . . . . . 164
Transmission . . . . . . . . . . . . . . . . . 213
Transmission Fluid . . . . . . . . . . . 299
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 217
B
BatteryExterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 168
Load Management . . . . . . . . . . . . 168
Power Protection . . . . . . . . . . . . . 168
Battery - North America . . . . 309, 360
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . 263
Blade Replacement, Wiper . . . . . 311
Brake
Parking, Electric . . . . . . . . . . . . . . 219
System Warning Light . . . . . . . . 135
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Antilock . . . . . . . . . . . . . . . . . . . . . . . 219 Brakes (cont'd)
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 221
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 181
Automatic Forward . . . . . . . . . . . 252
Braking System Front Pedestrian (FPB) . . . . . . . 253
Break-In, New Vehicle . . . . . . . . . . 195
Bulb Replacement Front Turn Signal Lamps . . . . . 315
Halogen Bulbs . . . . . . . . . . . . . . . . 314
Headlamp Aiming . . . . . . . . . . . . . 314
Headlamps . . . . . . . . . . . . . . . . . . . 314
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 315
License Plate Lamps . . . . . . . . . 316
Taillamps . . . . . . . . . . . . . . . . . . . . . 316
Buying New Tires . . . . . . . . . . . . . . . 341
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 116
California
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 286 California
Proposition
65 Warning . . . . . . . . . .285, 309, 360,
Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 392
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 206
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 42
Winter Driving . . . . . . . . . . . . . . . . 189
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . .110
Tie-Downs . . . . . . . . . . . . . . . . . . . . . 111
Caution, Danger, and Warning . . . . 3
Center Console Storage . . . . . . . . 109
Chains, Tire . . . . . . . . . . . . . . . . . . . . 345
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . .118
Charging System Light . . . . . . . . . 133
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 133
Child Restraints Infants and Young Children . . . . . 93
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 98
Older Children . . . . . . . . . . . . . . . . . . 91

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
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Index 423
Child Restraints (cont'd)Securing . . . . . . . . . . . . . . . . . 104, 106
Systems . . . . . . . . . . . . . . . . . . . . . . . . 95
Circuit Breakers . . . . . . . . . . . . . . . . 318
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 367
Interior Care . . . . . . . . . . . . . . . . . . 371
Climate Control Systems . . . . . . . 170 Air Conditioning . . . . . . . . . . . . . . 170
Dual Automatic . . . . . . . . . . . . . . . 172
Heating . . . . . . . . . . . . . . . . . . . . . . . 170
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Cluster, Instrument . . . . . . . . 122, 125
Cold Weather Operation . . . . . . . . 264
Collision Damage Repair . . . . . . . 402
Compact Spare Tire . . . . . . . . . . . . 359
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 109
Compass . . . . . . . . . . . . . . . . . . . . . . . 116
Compressor Kit, Tire Sealant . . . 347
Connected Services Connections . . . . . . . . . . . . . . . . . . 418
Diagnostics . . . . . . . . . . . . . . . . . . . 420
Navigation . . . . . . . . . . . . . . . . . . . . 417
Connections Connected Services . . . . . . . . . . 418
Control Hill Descent . . . . . . . . . . . . . . . . . . 225 Control (cont'd)
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 222
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 137
Control of a Vehicle . . . . . . . . . . . . . 181
Convenience Net . . . . . . . . . . . . . . . 111
Convex Mirrors . . . . . . . . . . . . . . . . . . 51
Coolant Engine Temperature Gauge . . 130
Cooling . . . . . . . . . . . . . . . . . . . . 170, 172
Cooling System . . . . . . . . . . . . . . . . . 301
Courtesy Lamps . . . . . . . . . . . . . . . . 166
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 401
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . .110
Cruise Control . . . . . . . . . . . . . . . . . . 230
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Cruise Control, Adaptive . . . . . . . . 232
Cupholders . . . . . . . . . . . . . . . . . . . . . 109
Customer Assistance . . . . . . . . . . . 398 Offices . . . . . . . . . . . . . . . . . . . . . . . . 397
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 398
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . 404 Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 395
D
Damage Repair, Collision . . . . . . . 402
Danger, Warning, and Caution . . . . 3
Data Collection
Infotainment System . . . . . . . . . . 408
OnStar . . . . . . . . . . . . . . . . . . . . . . . 408
Data Recorders, Event . . . . . . . . . 407
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 163
Defensive Driving . . . . . . . . . . . . . . . 181
Delayed Locking . . . . . . . . . . . . . . . . . 40
Diagnostics Connected Services . . . . . . . . . . 420
Diesel Exhaust Fluid . . . . . . . . 28, 208
Diesel Exhaust Fluid (DEF)
Warning Light . . . . . . . . . . . . . . . . . 140
Diesel Particulate Filter . . . . . . . . . 207
Distracted Driving . . . . . . . . . . . . . . . 180
Dome Lamps . . . . . . . . . . . . . . . . . . . 166
Door Delayed Locking . . . . . . . . . . . . . . . . 40
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power Locks . . . . . . . . . . . . . . . . . . . . 40
Drive Belt Routing, Engine . . . . . . 394