2019 GMC TERRAIN automatic

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Lighting 167
Reading Lamps
There are reading lamps on the
overhead console and over the rear
passenger doors. These lamps
come on when any door is opened.
Front Reading Lamps
The front reading lamps are in the
overhead console.
Press the lamp lenses to turn the
front reading lamps on or off.
Rear Reading Lamps
Press the lamp lens to turn the rear
passenger reading lamps on or off.
Lighting Features
Entry Lighting
Some exterior lamps and interior
lamps turn on briefly at night, or in
areas with limited lighting, when
K
is pressed on the Remote Keyless
Entry (RKE) transmitter. When a
door is opened, the interior lamps
come on. They stay on for about
20 seconds. When all of the doors
have been closed or the ignition is
turned on, they gradually fade out.
This feature can be changed. See
“Vehicle Locator Lights” under
Vehicle Personalization 0152.
Exit Lighting
Some exterior lamps and interior
lamps come on at night, or in areas
with limited lighting, when the driver
door is opened after the ignition is
turned off. The dome lamp comes
on after the ignition is turned off.
The exterior lamps and dome lamp
remain on for a set amount of time,
then automatically turn off.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
170 Climate Controls
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . 170
Dual Automatic ClimateControl System . . . . . . . . . . . . . 172
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 175
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 175
Service . . . . . . . . . . . . . . . . . . . . . . . 176
Climate Control Systems
With this system the heating, cooling, and ventilation in the vehicle can be
controlled.
1. Fan Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Controls
4. Defrost
5. TEMP (Temperature Control)
6. Rear Window Defogger
7. Air Recirculation9: Turn clockwise or
counterclockwise to increase or
decrease the fan speed or turn the
fan off.
TEMP : Turn the knob clockwise or
counterclockwise to increase or
decrease the temperature.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
172 Climate Controls
Dual Automatic Climate Control System
With this system the heating, cooling, and ventilation in the vehicle can be
controlled.
1. Driver Temperature Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Controls
4. Fan Control
5. Defrost
6. Passenger TemperatureControl
7. SYNC (Synchronized Temperature) 8. Rear Window Defogger
9. Power Button
10. Air Recirculation
11. AUTO (Automatic Operation)
Automatic Operation
The system automatically controls
the following four functions to heat
or cool the vehicle to the desired
temperature: .
Fan Speed
. Air Delivery Mode
. Air Conditioning
. Recirculation
When the AUTO indicator light is lit,
all four functions are operating
automatically. Each function can be
manually set and the selected
setting will be shown. This cancels
full automatic operation and the
AUTO indicator light turns off.
Functions that are not manually set
will continue to be automatically
controlled, although the AUTO
indicator light will not be lit.
To place the system in
automatic mode: 1. Press AUTO.
2. Set the driver and passenger temperature.
To find your comfort setting,
start with 22 °C (72 °F) and
allow the system time to
stabilize. Then adjust the
temperature as needed for best
comfort.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Climate Controls 173
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 when automatically controlled.
Press
@to manually select
recirculation; press it again to select
outside air.
Do not cover the solar sensor on the
top of the instrument panel near the
windshield. This sensor regulates
air temperature based on sun load.
See “Sensor” later in this section.
Manual Operation
O:Press to turn the climate control
system on or off. When off, no air
will flow into the vehicle. Turning the
fan on, pressing any other button,
or turning a knob will turn the
system back on.
9: Turn clockwise or
counterclockwise to increase or
decrease the fan speed. Press the
knob to turn the fan off.
Press AUTO to return to automatic
operation. Driver and Passenger
Temperature Control :
The
temperature can be adjusted
separately for the driver and
passenger.
Turn the knob clockwise or
counterclockwise to increase or
decrease the driver or passenger
temperature setting.
SYNC : Press to link the passenger
temperature settings to the driver
setting. The SYNC indicator light will
turn on. When the passenger
temperature settings are adjusted,
the SYNC indicator light is off.
The driver side or passenger side
temperature display shows the
temperature setting increasing or
decreasing.
Air Delivery Mode Control : Press
Y,\,[, or-to change the
direction of the airflow. An indicator
light comes on in the selected mode
button. Changing the mode cancels the
automatic operation and the system
goes into manual mode. Press
AUTO to return to automatic
operation.
Y:
Air is directed to the instrument
panel outlets.
\: Air is divided between the
instrument panel and floor outlets.
[: Air is directed to the floor
outlets, with some to the windshield,
side window outlets, and second
row floor outlets.
-: This mode clears the windows
of fog or moisture. Air is directed to
the windshield, floor outlets, and
side window vents.
0: Press to clear the windshield
of fog or frost more quickly. Air is
directed to the windshield and the
side window vents. The air
conditioning compressor also comes
on, unless the outside temperature
is below freezing.
Do not drive the vehicle until all
windows are clear.
See Air Vents 0175.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
174 Climate Controls
A/C :Press to turn the air
conditioning system on or off. An
indicator light comes on to show
that the air conditioning is enabled.
If the fan is turned off, the air
conditioner will not run. The A/C
light will stay on even if the outside
temperatures are below freezing
and the A/C compressor may be off.
@: Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the
inside of the vehicle. It can also be
used to help reduce outside air and
odors that enter the vehicle.
Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from the
rear window.
K: 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.
The rear window defogger only
works when the ignition is on. The
defogger turns off if the ignition is
turned off or to ACC/ACCESSORY.
Caution
Using a razor blade or sharp
object to clear the inside rear
window can damage the rear
window defogger. Repairs would
not be covered by the vehicle
warranty. Do not clear the inside
rear window with sharp objects.
Heated Mirror : If equipped with
heated outside mirrors, the mirrors
heat to help clear fog or frost from
the surface of the mirror when the
rear window defog button is
pressed. See Heated Mirrors 051.
Sensor
The solar sensor, on top of the
instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort. The automatic
recirculation mode sensitivity can be adjusted. See
“Air Quality Sensor”
under Vehicle Personalization
0 152.
Do not cover the sensor; otherwise
the automatic climate control system
may not work properly.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
178 Driving and Operating
Driving and
Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . 179
Driving Environment . . . . . . . . . . 180
Vehicle Design . . . . . . . . . . . . . . . 180
Distracted Driving . . . . . . . . . . . . 180
Defensive Driving . . . . . . . . . . . . . 181
Drunk Driving . . . . . . . . . . . . . . . . . 181
Control of a Vehicle . . . . . . . . . . . 181
Braking . . . . . . . . . . . . . . . . . . . . . . . 181
Steering . . . . . . . . . . . . . . . . . . . . . . 182
Off-Road Recovery . . . . . . . . . . . 182
Loss of Control . . . . . . . . . . . . . . . 183
Off-Road Driving . . . . . . . . . . . . . 183
Driving on Wet Roads . . . . . . . . 187
Hill and Mountain Roads . . . . . 188
Winter Driving . . . . . . . . . . . . . . . . 189
If the Vehicle Is Stuck . . . . . . . . 190
Vehicle Load Limits . . . . . . . . . . . 191
Starting and Operating
New Vehicle Break-In . . . . . . . . . 195
Ignition Positions . . . . . . . . . . . . . 195
Starting the Engine . . . . . . . . . . . 197
Stop/Start System . . . . . . . . . . . . 199
Engine Heater . . . . . . . . . . . . . . . . 200Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 202
Shifting Into Park . . . . . . . . . . . . . 202
Shifting out of Park . . . . . . . . . . . 203
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 205
Extended Parking . . . . . . . . . . . . 205
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 206
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 206
Diesel Particulate Filter
Diesel Particulate Filter . . . . . . . 207
Diesel Exhaust Fluid
Diesel Exhaust Fluid . . . . . . . . . . 208
Automatic Transmission
Automatic Transmission . . . . . . 213
Manual Mode . . . . . . . . . . . . . . . . . 217
Tow/Haul Mode . . . . . . . . . . . . . . . 218
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . 218
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 219
Electric Parking Brake . . . . . . . . 219
Brake Assist . . . . . . . . . . . . . . . . . . 221 Hill Start Assist (HSA) . . . . . . . . 221
Ride Control Systems
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . 222
Hill Descent Control (HDC) . . . 225
Driver Mode Control . . . . . . . . . . 226
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 230
Adaptive Cruise Control . . . . . . 232
Driver Assistance Systems
Driver Assistance Systems . . . 242
Assistance Systems for Parking or Backing . . . . . . . . . . 243
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 249
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 250
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 252
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . 253
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 255
Lane Change Alert (LCA) . . . . . 256
Lane Departure Warning (LDW) . . . . . . . . . . . . . 258
Lane Keep Assist (LKA) . . . . . . 258

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Driving and Operating 199
0294. When the outside
temperature drops below –18°C
(0°F), use of the engine heater is
recommended.
See Fuel for Diesel Engines 0262
for information on what fuel to use in
cold weather.
If the Diesel Engine Will Not
Start
If the vehicle has run out of fuel, see
Running Out of Fuel (Diesel) 0267.
If the vehicle is not out of fuel, and
the engine will not start:
Press ENGINE START/STOP.
Immediately after the wait-to-start
light goes off, press ENGINE
START/STOP to start the vehicle.
If the light does not go off, wait a
few seconds, then try starting the
engine again. See your dealer for a
starting system check.
If the light comes on and then goes
off, and it is known that the battery
is charged, but the engine still will
not start, the vehicle needs service. If the light does not come on when
the engine is cold, the vehicle
needs service.
If the battery does not have enough
charge to start the engine, see
Battery - North America
0309.
Check that the correct engine oil
has been used and changed at
appropriate intervals. If the wrong oil
is used, the engine may be harder
to start.
Be sure to use the proper fuel for
existing weather conditions. See
Fuel for Diesel Engines 0262.
If the engine starts, runs a short
time, then stops, the vehicle needs
service.
{Warning
Do not use gasoline or starting
aids, such as ether, in the air
intake. They could damage the
engine, which may not be
covered by the vehicle warranty. (Continued)
Warning (Continued)
They could also cause a fire,
which could cause serious
personal injury.
Stop/Start System
If equipped, the Stop/Start system
will shut off the engine to help
conserve fuel. It has components
designed for the increased number
of starts.
{Warning
The automatic engine Stop/Start
feature causes the engine to shut
off while the vehicle is still on. Do
not exit the vehicle before shifting
to P (Park). The vehicle may
restart and move unexpectedly.
Always shift to P (Park), and then
turn the ignition off before exiting
the vehicle.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
200 Driving and Operating
Auto Engine Stop/Start
When the brakes are applied and
the vehicle is at a complete stop,
the engine may turn off. When
stopped, the tachometer displays
AUTO STOP. SeeTachometer
0 128. When the brake pedal is
released or the accelerator pedal is
pressed, the engine will restart.
To maintain vehicle performance,
other conditions may cause the
engine to automatically restart
before the brake pedal is released.
Auto Stops may not occur and/or
auto restarts may occur because:
. The climate control settings
require the engine to be running
to cool or heat the vehicle
interior.
. The vehicle battery charge
is low.
. The vehicle battery has recently
been disconnected.
. Minimum vehicle speed has not
been reached since the last
Auto Stop .
The accelerator pedal is
pressed.
. The engine or transmission is
not at the required operating
temperature.
. The outside temperature is not
in the required operating range.
. The vehicle is in any gear other
than D (Drive).
. Tow/Haul Mode or other driver
modes have been selected.
. The vehicle is on a steep hill or
grade.
. The driver door has been
opened or driver seat belt has
been unbuckled.
. The hood has been opened.
. The Auto Stop has reached the
maximum allowed time.Engine Heater
{Warning
Do not plug in the engine block
heater while the vehicle is parked
in a garage or under a carport.
Property damage or personal
injury may result. Always park the
vehicle in a clear open area away
from buildings or structures.
The engine heater, if available, can
help in cold weather conditions at or
below −18 °C (0 °F) for easier
starting and better fuel economy