2020 GMC TERRAIN lock

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
146 Lighting
instrument cluster light will come
on to indicate the IntelliBeam
system is reactivated.
. The IntelliBeam system will turn
off if the fog lamps are
turned on.
The high beams may not turn off
automatically if the system cannot
detect another vehicle's lamps
because of any of the following:
. The other vehicle's lamps are
missing, damaged, obstructed
from view, or otherwise
undetected.
. The other vehicle's lamps are
covered with dirt, snow, and/or
road spray.
. The other vehicle's lamps cannot
be detected due to dense
exhaust, smoke, fog, snow, road
spray, mist, or other airborne
obstructions.
. The vehicle's windshield is dirty,
cracked, or obstructed by
something that blocks the view
of the light sensor. .
The vehicle is loaded such that
the front end points upward,
causing the light sensor to aim
high and not detect headlamps
and taillamps.
. The vehicle is being driven on
winding or hilly roads.
The IntelliBeam system may need to
be disabled if any of the above
conditions exist.
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.
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 toward you
momentarily and then release it.
Daytime Running
Lamps (DRL)
DRL can make it easier for others to
see the front of your vehicle during
the day. Fully functional DRL are
required on all vehicles first sold in
Canada.
The DRL system comes on in
daylight when the following
conditions are met:
. The ignition is on.
. The exterior lamp control is
in AUTO.
. The vehicle is not in P (Park).
. The light sensor determines it is
daytime.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
148 Lighting
|:Press to make the front and
rear turn signal lamps flash on and
off. This warns others that you are
having trouble.
Press
|again to turn the
flashers off.
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
will flash in the direction of the turn
or lane change. Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is complete. If the lever is
moved momentarily to the lane
change position, the arrow will flash
three times.
The lever returns to its starting
position when it is released.
If after signaling a turn or lane
change, the arrow flashes rapidly or
does not come on, a signal bulb
may be burned out.
Have any burned out bulbs
replaced. If a bulb is not burned out,
check the fuse. See
Instrument
Panel Fuse Block 0310.
Fog Lamps
The fog lamps button is on the
instrument panel beside the steering
wheel.
To turn on the fog lamps, the ignition
and the headlamps or parking lamps
must be on.
#:If equipped, press to turn on or
off. An indicator light on the
instrument cluster comes on when
the fog lamps are on.
Some localities have laws that
require the headlamps to be on
along with the fog lamps.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Lighting 149
Interior Lighting
Instrument Panel
Illumination Control
The brightness of the instrument
cluster display, infotainment display
and controls, steering wheel
controls, and all other illuminated
controls, as well as feature status
indicators can be adjusted.
The knob for this feature is on the
instrument panel beside the steering
column.
Push the knob in all the way until it
extends out and then turn the knob
clockwise or counterclockwise to
brighten or dim the lights.
Courtesy Lamps
The courtesy lamps come on when
any door is opened and the
j
OFF indicator light is turned off. See
Dome Lamps0149.
Dome Lamps
The dome lamp controls are in the
overhead console. To operate, press the following
buttons:
jOFF :
Press to turn off the
dome lamps when a door is open.
An indicator light on the button will
turn on when the dome lamp
override is activated. Press
j
OFF again to deactivate this feature
and the indicator light will turn off.
The dome lamps will come on when
doors are opened.
+ ON/OFF : Press to turn the dome
lamps on manually.
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.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Climate Controls 153
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . 153
Dual Automatic ClimateControl System . . . . . . . . . . . . . 155
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 158
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 158
Service . . . . . . . . . . . . . . . . . . . . . . . 159
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-13556230) - 2020 - CRC - 9/4/19
156 Climate Controls
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.
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 :
PressY,\,[, 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.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
158 Climate Controls
Air Vents
Use the louvers located on the air
vents to change the direction of the
airflow.
To open or close off the airflow:
.On the center air vents, move
the slider knobs up or down.
. On the outer and rear air vents,
move the slider knobs right
or left.
Operation Tips
. Clear away any ice, snow,
or leaves from air inlets at the
base of the windshield that could
block the flow of air into the
vehicle.
. Clear snow off the hood to
improve visibility and help
decrease moisture drawn into
the vehicle, which may improve
long term system performance. .
Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
. Use of non-GM approved hood
deflectors can adversely affect
the performance of the system.
Check with your dealer before
adding equipment to the outside
of the vehicle.
. Do not attach any devices to the
air vent slats. This restricts
airflow and may cause damage
to the air vents.
Maintenance
Passenger Compartment
Air Filter
The filter removes dust, pollen, and
other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part
of routine scheduled maintenance.
See Maintenance Schedule 0368.
To find out what type of filter to use,
see Maintenance Replacement
Parts 0378.
1. Open the glove box.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Driving and Operating 161
Driving and
Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . 162
Driving Environment . . . . . . . . . . 163
Vehicle Design . . . . . . . . . . . . . . . 163
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . 163
Distracted Driving . . . . . . . . . . . . 163
Defensive Driving . . . . . . . . . . . . . 164
Drunk Driving . . . . . . . . . . . . . . . . . 164
Control of a Vehicle . . . . . . . . . . . 165
Braking . . . . . . . . . . . . . . . . . . . . . . . 165
Steering . . . . . . . . . . . . . . . . . . . . . . 165
Off-Road Recovery . . . . . . . . . . . 166
Loss of Control . . . . . . . . . . . . . . . 167
Off-Road Driving . . . . . . . . . . . . . 167
Driving on Wet Roads . . . . . . . . 171
Hill and Mountain Roads . . . . . 172
Winter Driving . . . . . . . . . . . . . . . . 173
If the Vehicle Is Stuck . . . . . . . . 174
Vehicle Load Limits . . . . . . . . . . . 175
Starting and Operating
New Vehicle Break-In . . . . . . . . . 179
Ignition Positions . . . . . . . . . . . . . 179
Starting the Engine . . . . . . . . . . . 181 Stop/Start System . . . . . . . . . . . . 184
Winter Cover . . . . . . . . . . . . . . . . . 185
Engine Heater . . . . . . . . . . . . . . . . 186
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 187
Shifting Into Park . . . . . . . . . . . . . 187
Shifting out of Park . . . . . . . . . . . 188
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 190
Extended Parking . . . . . . . . . . . . 190
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 191
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 192
Diesel Particulate Filter
Diesel Particulate Filter . . . . . . . 192
Diesel Exhaust Fluid
Diesel Exhaust Fluid . . . . . . . . . . 195
Automatic Transmission
Automatic Transmission . . . . . . 201
Manual Mode . . . . . . . . . . . . . . . . . 205
Tow/Haul Mode . . . . . . . . . . . . . . . 205
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . 206
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 206
Electric Parking Brake . . . . . . . . 207
Brake Assist . . . . . . . . . . . . . . . . . . 208
Hill Start Assist (HSA) . . . . . . . . 209
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 209
Hill Descent Control (HDC) . . . 213
Driver Mode Control . . . . . . . . . . 214
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 217
Adaptive Cruise Control . . . . . . 219
Driver Assistance Systems
Driver Assistance Systems . . . 230
Assistance Systems for Parking or Backing . . . . . . . . . . 231
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 237
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 237
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . 239
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . 241
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 243

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
166 Driving and Operating
The vehicle has electric power
steering. It does not have power
steering fluid. Regular maintenance
is not required.
If power steering assist is lost due
to a system malfunction, the vehicle
can be steered, but may require
increased effort.
If the steering assist is used for an
extended period of time while the
vehicle is not moving, power assist
may be reduced.If the steering wheel is turned until it
reaches the end of its travel and is
held against that position for an
extended period of time, power
steering assist may be reduced.
Normal use of the power steering
assist should return when the
system cools down.
See your dealer if there is a
problem.
Curve Tips
.
Take curves at a reasonable
speed.
. Reduce speed before entering a
curve.
. Maintain a reasonable steady
speed through the curve.
. Wait until the vehicle is out of
the curve before accelerating
gently into the straightaway.
Steering in Emergencies
.There are some situations when
steering around a problem may
be more effective than braking. .
Holding both sides of the
steering wheel allows you to turn
180 degrees without removing
a hand.
. The Antilock Brake System
(ABS) allows steering while
braking.
Off-Road Recovery
The vehicle's right wheels can drop
off the edge of a road onto the
shoulder while driving. Follow
these tips: