
GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
380 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.
Drain the diesel fuel filter of water. (Diesel Only)@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
Diesel Engine Only: Replace fuel filter. (3)@@@@@
Replace engine air cleaner filter. (4)@ @@
Replace spark plugs. Inspect spark plug wires.@ @
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Diesel Engine Only: Replace timing belt, idler
pulley, and tensioner.@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts.@ @

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Service and Maintenance 381
Footnotes—Maintenance
Schedule Additional Required
Services - Normal
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) Or as indicated by the Driver
Information Center (DIC) or
two years whichever comes first.
The fuel filter may need to be
replaced more often based on
biodiesel usage, driving in climates
with severe dust, off-road driving,
or towing a trailer for extended
periods. (4)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(5) Or every five years, whichever
comes first. See Cooling System
0 301.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0308.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0311.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
382 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.
Drain the diesel fuel filter of water. (Diesel Only)@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
Diesel Engine Only: Replace fuel filter. (3)@@@@@
Replace engine air cleaner filter. (4)@ @@
Change automatic transmission fluid.@@@
Replace spark plugs. Inspect spark plug wires.@ @
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Diesel Engine Only: Replace timing belt, idler
pulley, and tensioner.@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts.@ @

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Service and Maintenance 383
Footnotes—Maintenance
Schedule Additional Required
Services - Severe
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) Or as indicated by the Driver
Information Center (DIC) or
two years whichever comes first.
The fuel filter may need to be
replaced more often based on
biodiesel usage, driving in climates
with severe dust, off-road driving,
or towing a trailer for extended
periods. (4)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(5) Or every five years, whichever
comes first. See Cooling System
0 301.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0308.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0311.Special Application
Services
.
Severe Commercial Use
Vehicles Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care
0 367.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
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
Index 427
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 42
LightingEntry . . . . . . . . . . . . . . . . . . . . . . . . . 167
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Illumination Control . . . . . . . . . . . 166
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Lights
Airbag Readiness . . . . . . . . . . . . . 131
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 136
Brake System Warning . . . . . . . 135
Charging System . . . . . . . . . . . . . 133
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 133
Cruise Control . . . . . . . . . . . . . . . . 141
Diesel Exhaust Fluid (DEF) . . . 140
Electric Parking Brake . . . . . . . . 136
Engine Oil Pressure . . . . . . . . . . 139
Flash-to-Pass . . . . . . . . . . . . . . . . . 163
Front Fog Lamp . . . . . . . . . . . . . . 141
High-Beam On . . . . . . . . . . . . . . . . 141
High/Low Beam Changer . . . . . 163
Hill Descent Control . . . . . . . . . . 137
Lane Keep Assist . . . . . . . . . . . . . 137
Low Fuel Warning . . . . . . . . . . . . 140
Seat Belt Reminders . . . . . . . . . . 131
Security . . . . . . . . . . . . . . . . . . . . . . 141 Lights (cont'd)
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 136
StabiliTrak OFF . . . . . . . . . . . . . . . 138
Tire Pressure . . . . . . . . . . . . . . . . . 139
Tow/Haul Mode . . . . . . . . . . . . . . . 137
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 138
Traction Off . . . . . . . . . . . . . . . . . . . 138
Wait to Start . . . . . . . . . . . . . . . . . . 139
Locks Automatic Door . . . . . . . . . . . . . . . . . 41
Delayed Locking . . . . . . . . . . . . . . . . 40
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Lockout Protection . . . . . . . . . . . . . . 41
Power Door . . . . . . . . . . . . . . . . . . . . . 40
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Loss of Control . . . . . . . . . . . . . . . . . 183
Low Fuel Warning Light . . . . . . . . . 140
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 98
Lumbar Adjustment . . . . . . . . . . . . . . 61
Front Seats . . . . . . . . . . . . . . . . . . . . . 61
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 390 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 384
Maintenance Schedule . . . . . . . . . 378 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 387
Malfunction Indicator Lamp . . . . . 133
Manual Mode . . . . . . . . . . . . . . . . . . . 217
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 62
Messages Engine Power . . . . . . . . . . . . . . . . 152
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 151
Vehicle Speed . . . . . . . . . . . . . . . . 152
Mirrors Automatic Dimming . . . . . . . . . . . . . 52
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 52
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 51
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 51
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 51
Manual Rearview . . . . . . . . . . . . . . . 52
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Tilt in Reverse . . . . . . . . . . . . . . . . . . 52
Mirrors, Interior Rearview . . . . . . . . 52
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Driver Control . . . . . . . . . . . . . . . . . 226
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 334