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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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318 Vehicle Care
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
{Danger
Fuses and circuit breakers are
marked with their ampere rating.
Do not exceed the
specified amperage rating when
replacing fuses and circuit
breakers. Use of an oversized
fuse or circuit breaker can result
in a vehicle fire. You and others
could be seriously injured or
killed.
To check a fuse, look at the
silver-colored band inside the fuse.
If the band is broken or melted,
replace the fuse. Be sure to replace
a bad fuse with a new one of the
identical size and rating. Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
possible.
There is a fuse puller in the engine
compartment fuse block. See
Engine Compartment Fuse Block
0
318. It can be used to easily
remove fuses from the fuse block.
To identify and check fuses, circuit
breakers, and relays see Engine
Compartment Fuse Block 0318 or
Instrument Panel Fuse Block 0321
and Rear Compartment Fuse Block
0 323.
Engine Compartment
Fuse Block
To remove the fuse block cover,
squeeze the clips on the cover and
lift it straight up. See Engine
Compartment Overview 0289.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 319
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 Fuses Usage
F05 FlexFuel sensor
F06 Transmission control module
F07 –
F08 Engine control module
F09 Air conditioning clutch Fuses Usage
F10 Canister vent solenoid
F11 Fuel system
F12 Front heated seats
F13 Afterboil pump
F14 –
F15 Lambda sensor 2
F16 Ignition coils
F17 Engine control module
F18 Selective catalytic reduction module
(diesel only)
F19 NOx soot sensor (diesel only)
F20 DC DC converter 2
F21 Shift control
F22 Antilock brake pump
F23 Front/Rear washer pump
F24 –
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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
320 Vehicle Care
FusesUsage
F25 Diesel fuel heater (diesel only)
F26 –
F27 Antilock brake valves
F28 LD trailer
F29 Rear window defogger
F30 Mirror defroster
F31 –
F32 Variable functions
F33 –
F34 Horn
F35 –
F36 Right high-beam headlamp
F37 Left high-beam headlamp
F38 Automatic headlamp leveling
F39 Fog lamps
F40 – Fuses
Usage
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
F49 –
F50 Heated steering wheel
F51 Right daytime running lamp
F52 Engine control module/
Transmission control
F53 – Fuses
Usage
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 pinion
K06 Fuel heater (diesel only)
K07 –
K08 –
K09 Front wiper speed
K10 –
K11 –
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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Vehicle Care 321
RelaysUsage
K12 High-beam headlamps
K13 Headlamps/Daytime running lamps
K14 Run/Crank
K15 Rear window defogger
*K16 Horn
*K17 Selective catalytic reduction
*K18 Fog lamps
*K19 Coolant pump
*K20 –
*K21 Rear washer pump
*K22 Front washer pump
*K23 Rear wiper control
* PCB relays are not serviceable.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.
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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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322 Vehicle Care
FusesUsage
F01 DC AC inverter
F02 Front windows Fuses
Usage
F03 Trailer brake
F04 Heating, ventilation, and air conditioning
blower
F05 Body control module 2
F06 CGM
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 Fuses
Usage
F18 Body control module 7
F19 Exterior mirror
F20 Body control module 1
F21 Body control module 4
F22 Body control module 6
F23 Electric steering column lock
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
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Vehicle Care 323
FusesUsage
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
F38 OnStar
F39 Instrument panel USB
F40 Camera module/ Liftgate module
F41 Park assist module
F42 Radio
Relays Usage
K01 Deadbolt
K02 Retained accessory power Relays
Usage
K03 Liftgate
K04 –
K05 Logistics
Circuit
Breakers Usage
CB1 –
CB2 Auxiliary power outlet console
Rear Compartment Fuse
Block
The rear compartment fuse block is
behind a trim panel on the side of
the rear compartment.
Remove the trim plate to access the
fuse block.
The vehicle may not be equipped
with all of the fuses and relays
shown.
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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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342 Vehicle Care
{Warning
Mixing tires of different sizes,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tires on all wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size, load range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See
Tire Pressure Monitor
System 0334.
The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See Vehicle Load Limits
0 191.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0341 and
Accessories and Modifications
0 286.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
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GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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346 Vehicle Care
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction as
used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.
{Warning
Driving on a flat tire will cause
permanent damage to the tire.
Re-inflating a tire after it has been
driven on while severely
underinflated or flat may cause a
blowout and a serious crash.
Never attempt to re-inflate a tire
that has been driven on while
severely underinflated or flat.
Have your dealer or an authorized(Continued)
Warning (Continued)
tire service center repair or
replace the flat tire as soon as
possible.
{Warning
Lifting a vehicle and getting under
it to do maintenance or repairs is
dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. See Hazard
Warning Flashers 0164.
{Warning
Changing a tire can be
dangerous. The vehicle can slip
off the jack and roll over or fall
causing injury or death. Find a
level place to change the tire. To
help prevent the vehicle from
moving:
1. Set the parking brake firmly.
2. Put an automatictransmission in P (Park) or a
manual transmission in
1 (First) or R (Reverse).
3. Turn off the engine and do not restart while the vehicle
is raised.
4. Do not allow passengers to remain in the vehicle.
5. Place wheel blocks, if equipped, on both sides of
the tire at the opposite
corner of the tire being
changed.