Page 229 of 330
GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
228 Vehicle Care
3. Remove the two screwssecuring the taillamp assembly.
4. Pull the taillamp assembly out of the vehicle body.
5. Disconnect the lamp wiring harness.6. Turn the bulb socket
counterclockwise and pull
it out.
7. Pull the bulb straight out of the socket.
8. Install the new bulb.
9. Push the bulb socket in and turn it clockwise.
10. Reverse Steps 2–5 to reinstall the lamp assembly.11. Verify that the taillamp
assembly tab, located at the
bottom of the taillamp
assembly, is aligned to the
fascia bracket before securing
with screws.
Auxiliary Taillamp
To replace one of these lamps:
1. Open the liftgate. See Liftgate 033.
2. Remove the interior trim access panel.
Page 230 of 330

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Vehicle Care 229
3. Remove the five attachmentnuts (1) securing the taillamp
assembly to the liftgate.
4. Disengage the retaining hook (2) and pull the taillamp
assembly out of the vehicle
liftgate.
5. Disconnect the lamp wiring harness.6. Turn the bulb socketcounterclockwise and pull
it out.
7. Pull the bulb straight out of the socket.
8. Install the new bulb.
9. Push the bulb socket in and turn it clockwise.
10. Reverse Steps 2–5 to reinstall lamp assembly.
Back–Up Lamp
Removal of the lamp assembly is
not required to replace the back-up
lamp bulb.
To replace one of these lamps: 1. Open the liftgate. See
Liftgate 033.
2. Remove the interior trim access panel.
3. Turn the bulb socketcounterclockwise and pull
it out.
4. Pull the bulb straight out of the socket.
5. Install the new bulb.
6. Push the bulb socket in and turn it clockwise.
7. Reinstall the interior trim access panel.
Page 231 of 330

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
230 Vehicle Care
License Plate Lamp
Lamp Assembly
Bulb Assembly
1. Bulb Socket2. Bulb
3. Lamp Assembly
To replace one of these bulbs:
1. Open the liftgate partway. See Liftgate 033.
2. Push the left end of the lamp assembly toward the right.
3. Pull the lamp assembly down to remove it from the liftgate.
4. Turn the bulb socket (1) counterclockwise to remove it
from the lamp assembly (3).
5. Pull the bulb (2) straight out of the bulb socket (1).
6. Push the replacement bulb straight into the bulb socket
and turn the bulb socket
clockwise to install it into the
lamp assembly.
7. Push the lamp assembly into the liftgate engaging the clip
side first.
8. Push on the lamp side opposite the clip until the lamp assembly
snaps into place.
Replacement Bulbs
Exterior Lamp Bulb
Number
Auxiliary Taillamp 161
Back-Up Lamp 921
License Plate Lamp W5WLL
Taillamp/Turn Signal
Lamp/Stop Lamp/
Sidemarker 3057K RD
For replacement bulbs not listed
here, contact your dealer.
Page 232 of 330

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Vehicle Care 231
Electrical System
Fuses
The wiring circuits in the vehicle are
protected from short circuits by
fuses. This greatly reduces the
chance of damage caused by
electrical problems.
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.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
There are two fuse blocks in the
vehicle: one in the engine
compartment and one in the
instrument panel.There is a fuse puller located in the
engine compartment fuse block.
See
Engine Compartment Fuse
Block 0231. It can be used to easily
remove fuses from the fuse block.
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 0206.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
Page 233 of 330
GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
232 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Cooling fan 1
2 Cooling fan 2
3 Brake booster
4 Right power windows Fuses Usage
5 Memory seat module
6 Left power seat
7 Instrument panel fuse block 1
8 Rear defogger
9 Starter
10 AIR pump motor Fuses Usage
11 Instrument panel fuse block 2
12 Sunroof
13 ABS pump
14 Instrument panel fuse block 3
15 Left power windows
16 ABS module
17 Transmission control module battery
18 Trailer parking light
19 AIR pump solenoid
20 Engine control module battery
21 Canister vent
22 Left trailer side (if equipped)
23 Liftgate module
24 Power lumbar
25 Right trailer side (if equipped)
Page 234 of 330

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Vehicle Care 233
FusesUsage
26 Rear accessory power outlet
27 Memory mirror module
28 Regulated voltage control battery
sensor
29 Front wiper
30 Rear wiper
31 A/C
32 Rear latch
33 Heated mirrors
34 Horn
35 Right high-beam headlamp
36 Left high-beam headlamp
37 Ignition coil –even
38 Ignition coil –odd
39 Windshield washer
40 Front fog lamps (if equipped) Fuses
Usage
41 Post catalytic converter O2 sensor
42 Engine control module
43 Pre-catalytic converter O2 sensor
44 Transmission control module
45 Mirror
46 Fuel system control module/Ignition
47 –
48 Rear drive module
49 Lift gate module logic
50 Instrument panel fuse block/Ignition
51 Front heated seat
52 Fuel system control module
53 Engine control module
54 Rear vision camera Fuses
Usage
55 Electric power steering
56 AIR pump solenoid
57 Brake booster
58 Cooling fan –low
59 High-beam headlamps
60 Cooling fan control
61 Wiper On/Off control
62 A/C
63 Rear defogger
64 Wiper speed
65 Fog lamps
66 Engine control
67 Starter
68 Run/Crank
69 Cooling fan –high
70 AIR pump motor
77 Right power seat
78 Passenger power lumbar
Page 235 of 330
GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
234 Vehicle Care
Instrument Panel Fuse
Block
The instrument panel fuse block is
located on the passenger side panel
of the center console. To access the
fuses, open the fuse panel door
from the passenger side by pulling
it out.
To reinstall the door, insert the tabs
on the top of the door into the
console first, then push the door
back into its original location.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.
Instrument Panel Fuse BlockFuses Usage
1 Steering wheel dimming
2 –
3 –
4 Body control module 1
5 Infotainment
6 Body control module 7
7 Noise control module
8 Body control module 4
9 Radio
10 –
11 Rear parking assist module
12 HVAC/Battery
13 Front auxiliary power
14 HVAC/Ignition
15 Display
Page 249 of 330

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
248 Vehicle Care
7. Place the relearn tool againstthe tire sidewall, near the valve
stem. Then press the button to
activate the TPMS sensor.
A horn chirp confirms that the
sensor identification code has
been matched to this tire and
wheel position.
8. Proceed to the passenger side front tire, and repeat the
procedure in Step 7.
9. Proceed to the passenger side rear tire, and repeat the
procedure in Step 7.
10. Proceed to the driver side rear tire, and repeat the procedure
in Step 7. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
11. Turn the ignition to LOCK/OFF. 12. Set all four tires to the
recommended air pressure
level as indicated on the Tire
and Loading Information label.
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
.The indicators at three or
more places around the tire
can be seen.
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated every
12 000 km (7,500 mi). See
Maintenance Schedule 0280.
Tires are rotated to achieve a
more uniform wear for all tires.
The first rotation is the most
important.
Anytime unusual wear is
noticed, rotate the tires as soon
as possible, check for proper tire
inflation pressure, and check for
damaged tires or wheels. If the
unusual wear continues after the
rotation, check the wheel
alignment. See When It Is Time
for New Tires 0249 andWheel
Replacement 0254.