Cover GMC TERRAIN 2018 Service Manual

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Driving and Operating 241
Caution (Continued)
be covered by the vehicle
warranty. Do not use marine,
locomotive, or boiler distillate fuel
since it may contain higher sulfur
levels.
Diesel Fuel Types
For best results use Ultra Low
Sulfur Type B Diesel. This fuel is
blended for seasonal changes. In
extreme cold temperatures (below
−18 °C or 0 °F) Ultra Low Sulfur
Type A Diesel fuel can be used, but
it may cause power and fuel
economy losses. Avoid using Type
A Diesel fuel in warm or hot
climates. Doing so can result in
stalling, poor starting when the
engine is hot, and damage to the
fuel injection system.
Premium Diesel Fuel
If available, premium diesel fuel
(FQP-1A) corresponding to the
Engine Manufacturers Association (EMA) Recommended Guideline
could provide better starting and
vehicle performance with less noise.
Biodiesel Blends in Canada
Biodiesel blends that meet the CAN/
CGSB-3.522 specifications up to
20% (B20) can be used. Avoid the
use of biodiesel blends above 20%,
as they may damage the engine
and fuel system. For detailed
information on the use of biodiesel,
see
Biodiesel 0241.
What Fuel to Use in Mexico
Use diesel fuel specification
NOM-086 Pemex UBA, which meets
the Ultra Low Sulfur Diesel fuel
requirement of 15 ppm sulfur
maximum. This fuel is not available
in all regions of Mexico.
Caution
Use of diesel fuel other than Ultra
Low Sulfur Diesel (15 ppm sulfur
maximum) will cause damage to
the exhaust after-treatment
(Continued)
Caution (Continued)
system. This damage would not
be covered by the vehicle
warranty. Do not use marine,
locomotive, or boiler distillate fuel
since it may contain higher sulfur
levels.
Biodiesel
Biodiesel is a renewable fuel
produced from vegetable oils or
animal fats that have been
chemically modified to make it
compatible with diesel fuel.
Caution
Do not use home-made biodiesel
or home test kits because the
quality cannot be verified by
approved scientific methods. Do
not use raw vegetable oil or other
unmodified bio-oils, fats,
or blends of vegetable oil with
diesel. They could damage the(Continued)

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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242 Driving and Operating
Caution (Continued)
fuel system and engine, and
damages would not be covered
by the vehicle warranty.
Caution
Do not use blends containing
more than 20% biodiesel. Any
engine, fuel system, or exhaust
after-treatment system damage
would not be covered by the
vehicle warranty.
Biodiesel fuel quality degrades with
time and exposure to high
temperature quicker than Ultra Low
Sulfur Diesel fuel. More frequent
refueling provides the best
opportunity to have a supply of fresh
fuel. Storage at hot ambient
temperatures will accelerate
biodiesel degradation.
Owners who use very little fuel,
or who have vehicles stored for
extended periods of time, should avoid the use of biodiesel blended
fuels above 5% by volume. When
vehicles are stored for longer than
one month, they should be run out
of biodiesel to below one-quarter
tank, refueled with Ultra Low Sulfur
Diesel fuel, and driven at least
32 km (20 mi) before storage.
At temperatures below 0 °C (32 °F),
it is recommended to switch to Ultra
Low Sulfur Diesel fuel with no
biodiesel content, or to blends with
biodiesel containing less than 5% by
volume. At these extreme cold
temperatures, biodiesel blends
higher than 5% by volume may
cause fuel filter plugging and
system gelling, which can lead to
vehicle operability problems.
Fuels improperly blended for cold
temperature operation may result in
restricted fuel filters and degraded
vehicle performance. GM diesel
vehicles are equipped with a fuel
heating system to provide an extra
level of protection against filter
plugging from gelling or waxing of
conventional diesel fuel and
biodiesel blends. If the operating
temperature is far below the
temperature at which gelling or
waxing of the fuel occurs, the
system cannot prevent all cases of
filter plugging.
If the vehicle experiences a fuel
filter restriction, the on-board
monitoring system will alert the
driver that the fuel filter requires
service. The fuel filter, however, will
not prevent all damage caused by
poor quality biodiesel.
Cold Weather Operation
(Diesel)
In cold weather, the fuel filter may
become clogged by wax naturally
present in the fuel. To unclog it,
move the vehicle to a warm garage
area and allow the filter to warm up.
The fuel filter may need to be
replaced. See
Fuel Filter
Replacement (Diesel) 0246.
At temperatures below 0 °C (32 °F),
it is recommended to avoid using
biodiesel blends above 5% blend.
This blend may cause fuel filter
plugging, system gelling, and

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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256 Driving and Operating
In general, trailer tongue weight (1)
should be 10–15% of the loaded
trailer weight (2). Some specific
trailer types, such as boat trailers,
fall outside of this range. Refer to
the trailer owner’s manual for the
recommended trailer tongue weight.
In all cases, do not exceed the
maximum loads for the vehicle
series and hitch type.
Total Weight on the Vehicle's
Tires
Inflate the vehicle's tires to the
upper limit for cold tires. These
numbers can be found on the
Certification label or see VehicleLoad Limits
0181 for more
information. Do not go over the
GVW limit for the vehicle, or the
GAWR, including the weight of the
trailer tongue. If using a
weight-distributing hitch, do not go
over the rear axle limit before
applying the weight distribution
spring bars.
Towing Equipment
Hitches
Use the correct hitch equipment.
See your dealer or a hitch dealer for
assistance.
. The rear bumper on the vehicle
is not intended for hitches. Do
not attach rental hitches or other
bumper-type hitches to it. Use
only a frame-mounted hitch that
does not attach to the bumper.
. Will any holes be made in the
body of the vehicle when the
trailer hitch is installed? If so,
seal the holes when the hitch is
removed. If the holes are not
sealed, dirt, water, and deadly carbon monoxide (CO) from the
exhaust can get into the vehicle.
See
Engine Exhaust 0196.
Hitch Cover
To remove the hitch cover:
1. Remove two fasteners (2).
2. Pull the bottom edge of the cover rearward.
3. Disengage the cover at the upper attachments (1) and
remove.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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258 Driving and Operating
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 086 and Adding Equipment
to the Airbag-Equipped Vehicle
0 86.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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260 Vehicle Care
Tire Changing . . . . . . . . . . . . . . . . 329
Compact Spare Tire . . . . . . . . . . 334
Jump Starting
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . 335
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . 337
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . . . 339
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 341
Interior Care . . . . . . . . . . . . . . . . . . 346
Floor Mats . . . . . . . . . . . . . . . . . . . . 349
General Information
For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 Warning
{Warning
Most motor vehicles, including
this one, as well as many of its
service parts and fluids, contain
and/or emit chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Engine
exhaust, many parts and
systems, many fluids, and some
component wear by-products
contain and/or emit these
chemicals. For more information
go to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0284
and Jump Starting - North America
0 335 and the back cover.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 261
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non-dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 086.
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner ’s manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see Service
Publications Ordering Information
0 378.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 086.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 265
1.Engine Air Cleaner/Filter 0274.
2. Engine Oil Fill Cap. See Engine Oil 0269.
3. Engine Oil Dipstick. See Engine Oil 0269.
4. Engine Cooling Fan. See Cooling System 0276.
5. Brake Fluid Reservoir. See Brake Fluid 0283.
6. Engine Compartment Fuse
Block 0293.
7. Remote Positive (+) Terminal (Under Cover). See Jump
Starting - North America 0335.
8. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0276.
9. Battery - North America 0284.
10. Remote Negative (−) Terminal. SeeJump Starting - North
America 0335.
11. Windshield Washer Fluid Reservoir. See Washer Fluid
0 282.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 267
1.Engine Air Cleaner/Filter 0274.
2. Engine Cooling Fan. See Cooling System 0276.
3. Engine Oil Dipstick. See Engine Oil 0269.
4. Engine Oil Fill Cap. See Engine Oil 0269.
5. Brake Fluid Reservoir. See Brake Fluid 0283.
6. Engine Compartment Fuse
Block 0293.
7. Remote Positive (+) Terminal (Under Cover). See Jump
Starting - North America 0335.
8. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0276.
9. Battery - North America 0284.
10. Remote Negative (−) Terminal. SeeJump Starting - North
America 0335.
11. Windshield Washer Fluid Reservoir. See Washer Fluid
0 282.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 269
1.Engine Air Cleaner/Filter 0274.
2. Engine Oil Fill Cap. See Engine Oil 0269.
3. Engine Oil Dipstick. See Engine Oil 0269.
4. Engine Cooling Fan. See Cooling System 0276.
5. Brake Fluid Reservoir. See Brake Fluid 0283.
6. Engine Compartment Fuse
Block 0293.
7. Remote Positive (+) Terminal (Under Cover). See Jump
Starting - North America 0335.
8. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0276.
9. Battery - North America 0284.
10. Remote Negative (−) Terminal. SeeJump Starting - North
America 0335.
11. Windshield Washer Fluid Reservoir. See Washer Fluid
0 282.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0273.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially
prior to a long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview
0264 for the location.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
If a low oil Driver Information Center
(DIC) message displays, check the
oil level. If the oil is not low and the
low oil message remains on, take
the vehicle to your dealer for
service.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground.
Check the engine oil level after
the engine has been off for at
least two hours. Checking the
engine oil level on steep grades

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 271
Selecting the Right Engine Oil
(Gasoline Engines)
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade.
SeeRecommended Fluids and
Lubricants 0361.
Specification
Ask for and use engine oils that
meet the dexos1 specification.
Engine oils that have been
approved by GM as meeting the
dexos1 specification are marked
with the dexos1 approved logo. See
www.gmdexos.com.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
For the LYX 1.5L turbo engine, use:
. dexos1 approved ACDelco Full
Synthetic 0W20 engine oil.
. dexos1 approved Mobil 1 Full
Synthetic 0W20 engine oil.
. Or any other 0W20 engine oil
meeting dexos1 second
generation requirements.
Use SAE 5W-30 viscosity grade
engine oil for the LTG 2.0L turbo
engine. Cold Temperature
Operation: In an area of extreme
cold, where the temperature falls
below −29 °C (−20 °F), an SAE
0W-30 oil may be used. An oil of
this viscosity grade will provide
easier cold starting for the engine at
extremely low temperatures. When selecting an oil of the
appropriate viscosity grade, it is
recommended to select an oil of the
correct specification. See
“Specification”
earlier in this section.
Selecting the Right Engine Oil
(Diesel Engines)
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade:
Specification
Ask for and use engine oils that
meet the dexos2 specification.
Engine oils that have been
approved by GM as meeting the
dexos2 specification are marked
with the dexos2 approved logo. See
www.gmdexos.com.
Use of Substitute Engine Oils if
dexos2 is unavailable: In the event
that dexos2-approved engine oil is
not available at an oil change or for
maintaining proper oil level, you
may use substitute engine oil that
meets ACEA C3 of the appropriate
viscosity grade.