Seat GMC TERRAIN 2021 Owners Manual

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
258 Vehicle Care
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(Continued)
Warning (Continued)
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 0273 and
Jump Starting - North America 0316 and the
back cover.
California Perchlorate Materials
Requirements
Certain types of automotive applications,
such as airbag initiators, seat belt
pretensioners, and lithium batteries
contained in electronic keys, may contain
perchlorate materials. Perchlorate Material –
special handling may apply. 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.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
282 Vehicle Care
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
F01 Starter 1
F02 Starter 2
F03 Lambda sensor 1
F04 Engine control module F05 FlexFuel sensor/Aero shutter Fuses Usage
F06 Transmission control module
F07 –
F08 Engine control module
F09 Air conditioning clutch F10 Canister vent solenoid F11 Fuel system
F12 Front heated seats Fuses Usage
F13 Engine coolant pump
F14 –
F15 Lambda sensor 2
F16 Ignition coils F17 Engine control module
F18 –
F19 –
F20 DC DC converter 2 F21 Shift control
F22 Antilock brake pump
F23 Front/Rear washer pump
F24 –
F25 –
F26 –
F27 Antilock brake valves
F28 LD trailer
F29 Rear window defogger
F30 Mirror defroster F31 –
F32 Variable functions

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
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FusesUsage
F33 –
F34 Horn F35 –
F36 Right high-beam headlamp
F37 Left high-beam headlamp
F38 Automatic headlamp leveling
F39 Fog lamps
F40 –
F41 Transmission range control module
F42 Motorized headlamp
F43 –
F44 Interior rearview mirror F45 Passenger side ventilated seat
F46 Driver side ventilated seat F47 Steering column lock assembly
F48 Rear wiper Fuses
Usage
F49 –
F50 Heated steering wheel F51 Right daytime running lamp
F52 Engine control module/ Transmission control
F53 –
F54 –
F55 Front wiper speed/ Control
F56 –
F57 Left daytime running lamp
Relays Usage
K01 Starter solenoid
K02 Air conditioning control
K03 Engine control module
K04 Front wiper control K05 Starter solenoid 2
K06 – Relays
Usage
K07 –
K08 –
K09 Front wiper speed K10 –
K11 –
K12 High-beam headlamps
K13 Headlamp/Daytime running lamps
K14 Run/Crank K15 Rear window defogger

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
284 Vehicle Care
Instrument Panel Fuse Block
The instrument panel fuse block is under the
instrument panel on the driver side.
To access the fuses, press and release the
latch near the top center square.
Apply pressure to the two retaining tabs on
the sides of the cover, until the two
retaining tabs clear the sides of the
instrument panel. Allow the panel to move
downward and out of the way.
To reinstall the cover, reverse the steps.
The vehicle may not be equipped with all of
the fuses and relays shown.
FusesUsage
F01 DC AC inverter
F02 Front windows Fuses
Usage
F03 Trailer brake
F04 Heating, ventilation, and air conditioning blower
F05 –
F06 Central gateway module F07 –
F08 Body control module 3
F09 Amplifier F10 –
F11 –
F12 –
F13 –
F14 Electronic shifter F15 Transmission control module
F16 Front heated seats F17 Left data link connector
F18 Body control module 7
F19 Exterior mirror
F20 –

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FusesUsage
F21 Body control module 4
F22 –
F23 –
F24 Sensing and diagnostic module
F25 Occupancy sensor
F26 –
F27 Power seats
F28 Rear windows
F29 –
F30 Front heated seats switch F31 Steering wheel controls
F32 Body control module 8
F33 Heating, ventilation, and air conditioning
F34 Passive entry, passive start
F35 Liftgate latch
F36 Wireless charger module/ USB accessory
F37 Cigarette lighter Fuses
Usage
F38 OnStar
F39 Instrument panel USB
F40 Camera module/Liftgate module
F41 Park assist module/Center stack display/Heating,
ventilation and air
conditioner display/
Universal garage door
opener/Overhead control
switchbank
F42 Radio
Relays Usage
K01 –
K02 Retained accessory power
K03 Liftgate
K04 –
K05 –
Circuit Breakers Usage CB1 –
CB2 –Rear Compartment Fuse Block
The rear compartment fuse block is behind a
trim panel on the side of the rear
compartment.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
286 Vehicle Care
Remove the trim plate to access the fuse
block.
The vehicle may not be equipped with all of
the fuses and relays shown.
FusesUsage
F1 –
F2 Liftgate Fuses
Usage
F3 Trailer auxiliary power
F4 Power seat co-driver 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
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

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(4) Construction Code:A letter code is
used to indicate the type of ply
construction in the tire. The letter "R"
means radial ply construction; the letter
"D" means diagonal or bias ply
construction.
(5) Rim Diameter
:Diameter of the
wheel in inches.
(6) Service Description
:These
characters represent the load index and
speed rating of the tire. The load index
represents the load carrying capacity a
tire is certified to carry. The speed
rating is the maximum speed a tire is
certified to carry a load.
Tire Terminology and Definitions
Air Pressure:The amount of air inside
the tire pressing outward on each
square inch of the tire. Air pressure is
expressed in kPa (kilopascal) or psi
(pounds per square inch).
Accessory Weight
:The combined
weight of optional accessories. Some
examples of optional accessories are automatic transmission, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship of a
tire's height to its width.
Belt
:A rubber coated layer of cords
between the plies and the tread. Cords
may be made from steel or other
reinforcing materials.
Bead
:The tire bead contains steel
wires wrapped by steel cords that hold
the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in which
the plies are laid at alternate angles
less than 90 degrees to the centerline
of the tread.
Cold Tire Pressure
:The amount of air
pressure in a tire, measured in kPa
(kilopascal) or psi (pounds per square
inch) before a tire has built up heat
from driving. See Tire Pressure0293. Curb Weight
:The weight of a motor
vehicle with standard and optional
equipment including the maximum
capacity of fuel, oil, and coolant, but
without passengers and cargo.
DOT Markings
:A code molded into the
sidewall of a tire signifying that the tire
is in compliance with the U.S.
Department of Transportation (DOT)
Motor Vehicle Safety Standards. The
DOT code includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also identify the
tire manufacturer, production plant,
brand, and date of production.
GVWR
:Gross Vehicle Weight Rating.
See Vehicle Load Limits 0196.
GAWR FRT
:Gross Axle Weight Rating
for the front axle. See Vehicle Load
Limits 0196.
GAWR RR
:Gross Axle Weight Rating
for the rear axle. See Vehicle Load
Limits 0196.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
292 Vehicle Care
Intended Outboard Sidewall:The side
of an asymmetrical tire that must
always face outward when mounted on
a vehicle.
Kilopascal (kPa)
:The metric unit for air
pressure.
Light Truck (LT-Metric) Tire
:A tire used
on light duty trucks and some
multipurpose passenger vehicles.
Load Index
:An assigned number
ranging from 1 to 279 that corresponds
to the load carrying capacity of a tire.
Maximum Inflation Pressure
:The
maximum air pressure to which a cold
tire can be inflated. The maximum air
pressure is molded onto the sidewall.
Maximum Load Rating
:The load rating
for a tire at the maximum permissible
inflation pressure for that tire.
Maximum Loaded Vehicle Weight
:The
sum of curb weight, accessory weight,
vehicle capacity weight, and production
options weight. Normal Occupant Weight
:The number
of occupants a vehicle is designed to
seat multiplied by 68 kg (150 lb). See
Vehicle Load Limits 0196.
Occupant Distribution
:Designated
seating positions.
Outward Facing Sidewall
:The side of
an asymmetrical tire that has a
particular side that faces outward when
mounted on a vehicle. The side of the
tire that contains a whitewall, bears
white lettering, or bears manufacturer,
brand, and/or model name molding
that is higher or deeper than the same
moldings on the other sidewall of
the tire.
Passenger (P-Metric) Tire
:A tire used
on passenger cars and some light duty
trucks and multipurpose vehicles.
Recommended Inflation Pressure
:
Vehicle manufacturer's recommended
tire inflation pressure as shown on the
tire placard. See Tire Pressure0293 and
Vehicle Load Limits 0196. Radial Ply Tire
:A pneumatic tire in
which the ply cords that extend to the
beads are laid at 90 degrees to the
centerline of the tread.
Rim
:A metal support for a tire and
upon which the tire beads are seated.
Sidewall
:The portion of a tire between
the tread and the bead.
Speed Rating
:An alphanumeric code
assigned to a tire indicating the
maximum speed at which a tire can
operate.
Traction
:The friction between the tire
and the road surface. The amount of
grip provided.
Tread
:The portion of a tire that comes
into contact with the road.
Treadwear Indicators
:Narrow bands,
sometimes called wear bars, that show
across the tread of a tire when only
1.6 mm (1/16 in) of tread remains. See
When It Is Time for New Tires 0299.
UTQGS (Uniform Tire Quality Grading
Standards)
:A tire information system
that provides consumers with ratings

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
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for a tire's traction, temperature, and
treadwear. Ratings are determined by
tire manufacturers using government
testing procedures. The ratings are
molded into the sidewall of the tire.
SeeUniform Tire Quality Grading 0301.
Vehicle Capacity Weight
:The number
of designated seating positions
multiplied by 68 kg (150 lb) plus the
rated cargo load. See Vehicle Load
Limits 0196.
Vehicle Maximum Load on the Tire
:
Load on an individual tire due to curb
weight, accessory weight, occupant
weight, and cargo weight.
Vehicle Placard
:A label permanently
attached to a vehicle showing the
vehicle capacity weight and the original
equipment tire size and recommended
inflation pressure. See “Tire and Loading
Information Label” underVehicle Load
Limits 0196.
Tire Pressure
Tires need the correct amount of air
pressure to operate effectively.
{Warning
Neither tire underinflation nor
overinflation is good. Underinflated
tires, or tires that do not have
enough air, can result in:
.Tire overloading and overheating,
which could lead to a blowout.
.Premature or irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that have
too much air, can result in:
.Unusual wear.
.Poor handling.
.Rough ride.
.Needless damage from road
hazards.
The Tire and Loading Information label
on the vehicle indicates the original
equipment tires and the correct cold
tire inflation pressures. The
recommended pressure is the minimum air pressure needed to support the
vehicle's maximum load carrying
capacity. See
Vehicle Load Limits 0196.
How the vehicle is loaded affects
vehicle handling and ride comfort.
Never load the vehicle with more
weight than it was designed to carry.
When to Check
Check the pressure of the tires once a
month or more. Do not forget the
compact spare, if the vehicle has one.
The compact spare cold tire pressure
should be at 420 kPa (60 psi). See
Compact Spare Tire 0315.
How to Check
Use a good quality pocket-type gauge
to check tire pressure. Proper tire
inflation cannot be determined by
looking at the tire. Check the tire
inflation pressure when the tires are
cold, meaning the vehicle has not been
driven for at least three hours or no
more than 1.6 km (1 mi).

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Check that all wheel nuts are properly
tightened. See“Wheel Nut Torque”
under Capacities and Specifications
0 343, and “Removing the Flat Tire and
Installing the Spare Tire” underTire
Changing 0310.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
cause wheel nuts to become loose
over time. The wheel could come off
and cause a crash. When changing a
wheel, remove any rust or dirt from
places where the wheel attaches to
the vehicle. In an emergency, a cloth
or paper towel can be used; however,
use a scraper or wire brush later to
remove all rust or dirt.
Lightly coat the inner diameter of the
wheel hub opening with wheel bearing
grease after a wheel change or tire
rotation to prevent corrosion or rust
buildup.
{Warning
Do not apply grease to the wheel
mounting surface, wheel conical
seats, or the wheel nuts or bolts.
Grease applied to these areas could
cause a wheel to become loose or
come off, resulting in a crash.
When It Is Time for New Tires
Factors, such as maintenance, temperatures,
driving speeds, vehicle loading, and road
conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell
when it is time for new tires. Treadwear
indicators appear when the tires have only 1.6 mm (1/16 in) or less of tread remaining.
See
Tire Inspection 0298 and
Tire Rotation 0298 for additional
information.
The rubber in tires ages over time. This also
applies to the spare tire, if the vehicle has
one, even if it is never used. Multiple factors
including temperatures, loading conditions,
and inflation pressure maintenance affect
how fast aging takes place. GM recommends
that tires, including the spare if equipped,
be replaced after six years, regardless of
tread wear. To identify the age of a tire, use
the tire manufacture date, which is the last
four digits of the DOT Tire Identification
Number (TIN) molded into one side of the
tire sidewall. The last four digits of the TIN
indicate the tire manufactured date. The
first two digits represent the week and the
last two digits, the year. For example, the
third week of the year 2020 would have a
4-digit DOT date of 0320. Week 01 is the
first full week (Sunday through Saturday) of
each year.
Vehicle Storage
Tires age when stored normally mounted on
a parked vehicle. Park a vehicle that will be
stored for at least a month in a cool, dry,
clean area away from direct sunlight to slow