2015 GMC TERRAIN Vehicle

Black plate (1,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Headlamp High/Low-BeamChanger . . . . . . . . . . . . . . . . . . . . . 6-1
Flash-to-Pass . . . . . . . . . . . . . . . . . 6-2
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 6-2
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 6-2
Hazard Warning Flashers . . . . . 6-3
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 6-3
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-4
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 6-4
Dome Lamps . . . . . . . . . . . . . . . . . 6-4
Reading Lamps . . . . . . . . . . . . . . . 6-5
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . 6-5
Battery Load Management . . . . 6-5
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
turn signal lever.
There are four positions.
O(Exterior Lamp Control):
Operates the exterior lamps. Turn to
one of the following positions:
O(Off): Briefly turn to this position
to turn the automatic light control off
or on again.
AUTO (Automatic Headlamps):
Turns the exterior lamps on and off
automatically depending on the
exterior light. The vehicle will default
to the AUTO setting when it is first
started.
;(Parking Lamps): Turns on the
parking lamps including all lamps,
except the headlamps.
5(Headlamps): Turns on the
headlamps, together with the
parking lamps and instrument panel
lights.
Headlamp High/
Low-Beam Changer
2 3
Headlamp High/Low-Beam
Changer: Push the turn signal
lever away from you and release, to
turn the high beams on. To return to
low beams, push the lever again or
pull it toward you and release.
This indicator light turns on in the
instrument cluster when the
high-beam headlamps are on.

Black plate (2,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
6-2 Lighting
Flash-to-Pass
The flash-to-pass feature works with
the low beams or Daytime Running
Lamps (DRL) on or off.
To flash the high beams, pull the
turn signal lever all the way toward
you, then release it.
Daytime Running
Lamps (DRL)
The DRL system makes the
low-beam headlamps come on at a
reduced brightness in daylight when
the following conditions are met:
.The ignition is on.
.The exterior lamp control is
in AUTO.
.The transmission is not in
P (Park).
.The light sensor determines it is
daytime.
.The parking brake is released.
Fully functional DRL are required on
all vehicles first sold in Canada. When the DRL are on, the taillamps,
sidemarker, instrument panel lights
and other lamps will not be on. The
instrument cluster will be lit.
When the exterior lamp control is
turned to
5, the low-beam
headlamps come on. The other
lamps that come on with the
headlamps will also come on.
To idle your vehicle with the DRL
off, move the shift lever to P (Park).
The DRL will stay off until the shift
lever is moved out of the P (Park)
position.
The regular headlamp system
should be turned on when needed.
Automatic Headlamp
System
When it is dark enough outside, the
headlamps come on automatically.
Do not cover the light sensor on top
of the instrument panel or the
headlamps will come on when they
are not needed.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic
headlamp system changes to the
DRL. During that delay, the
instrument cluster may not be as
bright as usual. Make sure the
instrument panel brightness control

Black plate (5,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
Lighting 6-5
1(Door):The lamps come on
automatically when a door is
opened.
+(On): Turns the dome
lamps on.
The dome lamps can also be turned
on and off by pressing the buttons
next to the lamps.
Reading Lamps
The reading lamps are located on
the overhead console. These lamps
come on automatically when any
door is opened.
For manual operation, press the
button next to each lamp to turn it
on or off.
Lighting Features
Entry Lighting
The dome lamp, cargo lamp, and
foot lamp inside the vehicle come
on when any door is opened, if the
dome lamp is in the door position. In
addition, these lamps come on
when the Remote Keyless Entry
(RKE) unlock button is pressed.
They stay on for 20 seconds or until
a door is opened. After the door is
opened and then closed, the light
remains on for 20 seconds, or until
the ignition is turned to ON/RUN.
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery. When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the
power needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog
lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.

Black plate (6,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
6-6 Lighting
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce
the power demands of some
accessories.
Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible. See
Battery Voltage and Charging
Messages on page 5-24.

Black plate (1,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
Climate Controls 8-1
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . 8-1
Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-3
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Climate Control Systems
The vehicle's heating, cooling, defrosting, and ventilation can be controlled
with this system.
1. Fan Control
2. Air Delivery Mode Controls
3. Temperature Control
4. Outside Air
5. Front Defrost
6. Rear Window Defogger
7. Recirculation 8. A/C (Air Conditioning)
A(Fan Control):
Turn to increase
or decrease the fan speed. Turn the
knob completely to
Tto turn the
fan off.
Temperature Control: Turn to
increase or decrease the
temperature.

Black plate (2,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
8-2 Climate Controls
Air Delivery Mode Control:To
change the current mode, select
one of the following:
F (Vent): Air is directed to the
instrument panel outlets.
* (Bi-Level): Air is directed to the
instrument panel outlets and the
floor outlets.
7 (Floor): Air is directed to the
floor outlets.
W(Defog): Clears the windows of
fog or moisture. Air is directed to the
windshield and floor outlets.
0FRONT (Front Defrost): Clears
the windshield of fog or frost more
quickly. Air is directed to the
windshield and side window outlets.
For best results, clear all snow and
ice from the windshield before
defrosting.
Do not drive the vehicle until all the
windows are clear.
If equipped with the Fuel Economy
Mode, the climate controls may take
longer to heat or cool the cabin and the rear window defogger will turn
off sooner, when this feature is in
use. See
Fuel Economy Mode on
page 9-29.
Air Conditioning
A/C (Air Conditioning): Press to
turn the air conditioning on or off.
If the fan is turned off or the outside
temperature falls below freezing, the
air conditioning will not work.
h(Recirculation): Press to turn
on the recirculation. An indicator
light comes on. Air is recirculated
inside the vehicle. It helps to quickly
cool the air inside the vehicle and
reduce the outside air and odor that
might enter. The air conditioning
may come on under certain
conditions.
To improve fuel efficiency and to
cool the vehicle faster, recirculation
may be automatically selected in
warm weather. The recirculation
light will not come on. To override
this feature, select outside air.
%(Outside Air): Press to turn
on the outside air. An indicator light
comes on. Outside air is circulated
throughout the vehicle.
Rear Window Defogger
1REAR (Rear Defogger): Press
to turn the rear window defogger on
or off. An indicator light on the
button comes on to show that the
rear window defogger is on. It turns
off if the ignition is put in the ACC/
ACCESSORY or LOCK/OFF
position.
The ignition must be on to use the
rear window defogger.
Do not drive the vehicle until all the
windows are clear.

Black plate (3,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
Climate Controls 8-3
{Caution
Do not use a razor blade or sharp
object to clear the inside rear
window. Do not adhere anything
to the defogger grid lines in the
rear glass. These actions may
damage the rear defogger.
Repairs would not be covered by
the vehicle warranty.
Automatic Climate Control System
The vehicle's heating, cooling, defrosting, and ventilation can be controlled
with this system.
1. Fan Control
2. AUTO (Automatic Operation)
3. Air Delivery Mode Controls
4. Front Defrost
5. Recirculation
6. Temperature Control
7. Power8. Driver and Passenger Heated
Seats
9. Rear Window Defogger
10. A/C (Air Conditioning)

Black plate (4,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
8-4 Climate Controls
Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, and recirculation to
heat or cool the vehicle to the
selected temperature.
When the AUTO indicator light is
on, the system is in full automatic
operation.
To place the system in
automatic mode:
1. Press AUTO.
2. Set the temperature. Allow thesystem time to stabilize. Then
adjust the temperature as
needed.
To improve fuel efficiency and to
cool the vehicle faster,
recirculation may be
automatically selected in warm
weather. The recirculation light
will not come on. Press the
h
to select recirculation; press it
again to select outside air. Manual Operation
O(Power):
Press to turn the
climate control system on or off.
A(Fan Control): Turn to increase
or decrease the fan speed.
Adjusting the fan speed while in
automatic mode places the fan
under manual control. The AUTO
indicator light turns off. The air
delivery mode remains in automatic
control.
Temperature Control: Turn to
increase or decrease the
temperature inside the vehicle.
H/G(Air Delivery Mode
Control): Press mode up or mode
down to cycle through the different
air delivery modes. The current
mode is shown on the display.
Select from the following:
F (Vent): Air is directed to the
instrument panel outlets.
* (Bi-Level): Air is directed to the
instrument panel outlets and the
floor outlets. 7
(Floor): Air is directed to the
floor outlets.
W(Defog): Clears the windows of
fog or moisture. Air is directed to the
windshield and floor outlets.
0FRONT (Front Defrost): Clears
the windshield of fog or frost more
quickly. Air is directed to the
windshield and side window outlets.
Selecting defrost disables the
automatic mode.
For best results, clear all snow and
ice from the windshield before
defrosting.
Do not drive the vehicle until all the
windows are clear.
For vehicles with Fuel Economy
Mode, the climate controls may take
longer to heat or cool the cabin and
the rear window defogger will turn
off sooner, when this feature is in
use. See Fuel Economy Mode on
page 9-29.