steering GMC TERRAIN 2020 Owner's Guide

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
180 Driving and Operating
The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference
to the Keyless Access system. See
Remote Keyless Entry (RKE)
System Operation08.
To shift out of P (Park), vehicles with
a gasoline engine must be turned
on, and the brake pedal must be
applied. For vehicles with a diesel
engine, the vehicle does not need to
be on to shift out of P (Park). See
Shifting out of Park 0188.
Stopping the Engine/Off (No
Indicator Lights) : When the
vehicle is stopped, press ENGINE
START/STOP once to turn the
engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP) 0187. If the vehicle is in R (Reverse),
D (Drive) or L (Low), the vehicle will
shift to P (Park), the ignition will turn
off, and Retained Accessory Power
(RAP) will remain active. See
Retained Accessory Power (RAP)
0
187.
If the vehicle is in N (Neutral), the
ignition will return to ACC/
ACCESSORY and display the
message SHIFT TO PARK in the
Driver Information Center (DIC).
When the vehicle is shifted into
P (Park), the ignition system will
turn off.
The vehicle may have an electric
steering column lock. The lock is
activated when the vehicle is turned
off and either front door is opened.
A sound may be heard as the lock
actuates or releases. The steering
column lock may not release with
the wheels turned off center. If this
happens, the vehicle may not start.
Move the steering wheel from left to
right while attempting to start the
vehicle. If this does not work, the
vehicle needs service. Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.
If the vehicle must be turned off in
an emergency:
1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to
a safe location.
3. Come to a complete stop and shift to P (Park).
4. Set the parking brake. See Electric Parking Brake 0207.
Press ENGINE START/STOP
to turn the vehicle off.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Driving and Operating 181
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over
and must be shut off while driving,
press and hold ENGINE START/
STOP for longer than two seconds,
or press twice in five seconds.
ACC/ACCESSORY (Amber
Indicator Light) : This mode allows
you to use some electrical
accessories when the engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to OFF after
five minutes to prevent battery
rundown. ON/RUN/START (Green Indicator
Light) :
This mode is for starting
and driving. With the ignition off and
the brake pedal applied, pressing
the button once will turn the ignition
on. Once engine cranking begins,
release the button. Engine cranking
will continue until the engine starts.
See Starting the Engine 0181. The
ignition will then remain in on.
Service Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off and
the brake pedal not applied,
pressing and holding ENGINE
START/STOP for more than
five seconds will place the vehicle in
Service Mode. The instruments and
audio systems will operate as they
do in ON/RUN, but the vehicle will
not be able to be driven. The engine
will not start in Service Mode. Press
ENGINE START/STOP again to turn
the vehicle off.
Starting the Engine
Shift the vehicle into P (Park) or
N (Neutral). To restart the engine
when the vehicle is already moving,
use N (Neutral) only.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
See Add-On Electrical Equipment
0 271.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
194 Driving and Operating
Manual regeneration can only be
used when the DPF has become at
least 90% full. At 100% full, it will
attempt to automatically self-clean if
proper driving conditions are met.
The DPF will clean itself if the
vehicle can be driven for about
30 minutes.
A DIC message displays when
manual regeneration is possible.
Scroll through the DIC pages to find
the Exhaust Cleaning menu.
Depending on whether the vehicle
has a base or uplevel cluster, it may
be under the Settings menu.
If the vehicle cannot be stopped
when the DIC message first
indicates cleaning is available,
automatic self-cleaning may have
begun. If conditions cannot be met
for self-cleaning to complete, and
manual regeneration is selected, it
may take up to four minutes for the
system to switch to manual
regeneration. When the switch
occurs, a DIC message prompts to
start the cleaning process.{Warning
Do not leave the vehicle during
the regeneration.
Make sure that there are no
flammable materials near the
muffler, DPF, and exhaust pipe
which may result in a fire.
The temperature of exhaust
gases is high enough to burn you.
You and others could be seriously
injured.
Before starting manual
regeneration, make sure all of the
following safety conditions are met:
. The vehicle is parked on level
ground, away from any
flammable materials.
. The vehicle is parked outdoors,
away from any walls or
buildings.
. The vehicle is at least 3 m (10 ft)
from any obstructions or
materials that may combust
or melt. .
The shift lever is in P (Park).
. The fuel tank is at least
one-eighth full.
. All fluids are at the proper level.
. No diagnostic trouble codes
have been set, and the
malfunction indicator lamp is
not on.
. The engine coolant temperature
is above 71 °C (160 °F).
After making sure all safety
conditions have been met, press the
trip odometer reset stem or
thumbwheel on the steering wheel
for at least one second to select
Start on the infotainment display.
Follow the instructions in the DIC
messages. Touch ACCEPT to
acknowledge that all of these safety
conditions have been met and to
activate regeneration.
If the infotainment display returns to
the previous screen, then one or
more of the necessary safety
conditions has not been met. If you
cannot determine which condition

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
206 Driving and Operating
The system will automatically
command downshifts to reduce
vehicle speed. The normal shift
pattern will return once the vehicle
is on a low grade or when the
accelerator pedal is pressed.
While in the Electronic Range
Select (ERS) mode, grade braking
is deactivated, allowing the driver to
select a range and limiting the
highest gear available. Grade
braking is available for normal
driving and in Tow/Haul Mode.
SeeAutomatic Transmission 0201.Drive Systems
All-Wheel Drive
For information on All-Wheel
Drive (AWD), see Driver Mode
Control 0214.
Brakes
Antilock Brake
System (ABS)
The Antilock Brake System (ABS)
helps prevent a braking skid and
maintain steering while
braking hard.
ABS performs a system check when
the vehicle is first driven.
A momentary motor or clicking noise
may be heard while this test is going
on, and the brake pedal may move
slightly. This is normal.
If there is a problem with ABS, this
warning light stays on. See Antilock
Brake System (ABS) Warning Light
0 118.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Driving and Operating 207
ABS does not change the time
needed to get a foot on the brake
pedal and does not always
decrease stopping distance. If you
get too close to the vehicle ahead,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room ahead to stop,
even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly.
Hearing or feeling ABS operate is
normal.
Braking in Emergencies
ABS allows steering and braking at
the same time. In many
emergencies, steering can help
even more than braking.
Electric Parking Brake
The vehicle has an Electric Parking
Brake (EPB). The EPB can always
be activated, even if the ignition is
off. To prevent draining the battery,
avoid repeated cycles of the EPB
system when the engine is not
running.
The system has a
Yor PARK
Electric Parking Brake light, and a
8
Service Parking Brake light or
Service Parking Brake message. See
Electric Parking Brake Light
0 118 and
Service Electric Parking Brake Light
0 118.
Before leaving the vehicle, check for
the
Yor PARK light to ensure that
the parking brake is applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a complete stop.
2. Press the EPB switch momentarily.
The
Yor PARK light will flash and
then stay on once the EPB is fully
applied. If the
Yor PARK light
flashes continuously, then the EPB
is only partially applied or there is a
problem with the EPB. A Driver
Information Center (DIC) message
will display. Release the EPB and
try to apply it again. If the light does
not come on, or keeps flashing,
have the vehicle serviced. Do not
drive the vehicle if the
Yor PARK

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
214 Driving and Operating
HDC light indicates the system is
actively applying the brakes to
maintain vehicle speed.
When HDC is activated, the initial
HDC speed is set to the current
driving speed. It can be increased or
decreased by pressing +RES or–
SET on the steering wheel or by
applying the accelerator or brake
pedal. This adjusted speed
becomes the new set speed.
HDC will remain enabled between
22 and 60 km/h (14 and 37 mph);
however vehicle speed cannot be
set or maintained in this range.
It will automatically disable if the
vehicle speed is above 80 km/h
(50 mph) or above 60 km/h
(37 mph) for at least 30 seconds.
Press
5again to re-enable HDC.
Driver Mode Control
Depending on the option package
and available features, the Driver
Mode Control can have the
following modes: Tour (Front-Wheel
Drive (FWD)), All-Wheel Drive
(AWD), Snow/Ice, Off-Road, and Tow/Haul. Rotate the Driver Mode
Control knob on the center console
to make a mode selection. Continue
turning the knob through the
available modes. Upon selection of
a mode, the selected mode’s icon
will light up on the knob and a
message will be displayed in the
Driver Information Center (DIC).
Driver Mode Control Knob for
Front-Wheel Drive (FWD)
Driver Mode Control Knob for All-Wheel Drive (AWD)
q(Vehicles without AWD) or5(AWD equipped vehicles) Tour
Mode : Use Tour Mode during
normal driving conditions. Tour
Mode either puts the vehicle in
Front-Wheel Drive (FWD) for AWD
vehicles, or is the normal drive
mode for FWD vehicles. Tour Mode
is the most fuel efficient drive mode.
See Driving for Better Fuel
Economy 0163. When selecting
Tour Mode, if equipped, the AWD
light will flash briefly while the
system disables, and then stays off.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
216 Driving and Operating
Mode Name In Cluster Menu: Tour AWD Snow Off-Road Tow/Haul
Mode Availability AWD & FWD AWD FWD AWD Towing Package
(AWD
& FWD)
Retained Across Ignition Cycles Yes Yes No No No
Pedal Map Normal Normal Off-Road Off-Road Normal
Auto Transmission Schedule Normal Normal Normal Normal Tow/Haul
AWD (If Equipped) Normal FWD Normal AWD NA Off-Road AWDNormal AWD
Steering Normal Normal Normal Normal Normal
Trailer Sway Control Normal Normal Normal Normal Tow/Haul
StabiliTrak Setting Normal Normal Normal Off-Road Normal
Traction Control Setting Normal Normal Normal Off-Road Normal

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
218 Driving and Operating
–SET :Press briefly to set the
speed and activate cruise control.
If cruise control is already active,
use to decrease vehicle speed.
Setting Cruise Control
If
5is on when not in use, –SET or
+RES could get bumped and go into
cruise when not desired. Keep
5
off when cruise is not being used.
To set a speed:
1. Press
5to turn the cruise
system on.
2. Get up to the desired speed.
3. Press and release –SET. The
desired set speed briefly
appears in the instrument
cluster.
4. Remove your foot from the accelerator pedal.
The cruise control indicator on the
instrument cluster turns green after
cruise control has been set to the
desired speed. See Instrument
Cluster (Base and Midlevel) 0103
or
Instrument Cluster (Uplevel) 0107. Resuming a Set Speed
If the cruise control is set at a
desired speed and then the brakes
are applied or
*is pressed, the
cruise control is disengaged without
erasing the set speed from memory.
Once the vehicle speed reaches
about 40 km/h (25 mph) or more,
briefly press +RES. The vehicle
returns to the previous set speed.
Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
. Press and hold +RES on the
steering wheel until the vehicle
accelerates to the desired
speed, then release it.
. To increase the speed in small
increments, briefly press +RES.
For each press, the vehicle goes
about 1 km/h (1 mph) faster. The speedometer reading can be
displayed in either English or metric
units. See
Instrument Cluster (Base
and Midlevel) 0103 or
Instrument Cluster (Uplevel) 0107.
The increment value used depends
on the units displayed.
Reducing Speed While Using
Cruise Control
If the cruise control system is
already activated:
. Press and hold –SET until the
desired lower speed is reached,
then release it.
. To slow down in small
increments, briefly press –SET.
For each press, the vehicle goes
about 1 km/h (1 mph) slower.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster (Base
and Midlevel) 0103 or
Instrument Cluster (Uplevel) 0107.
The increment value used depends
on the units displayed.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Driving and Operating 223
When the accelerator pedal is
pressed, ACC will not brake
because it is overridden. The
ACC indicator will turn blue on
the instrument cluster.
. Press and hold RES+ until the
desired set speed is displayed,
then release it.
. To increase vehicle speed in
smaller increments, press RES+
briefly. For each press, the
vehicle goes about 1 km/h
(1 mph) faster.
. To increase vehicle speed in
larger increments, hold RES+.
While holding RES+, the vehicle
speed increases to the next
5 km/h (5 mph) step, then
continues to increase by 5 km/h
(5 mph) at a time.
The set speed can also be
increased while the vehicle is
stopped.
. If stopped with the brake
applied, press RES+ until the
desired set speed is displayed. .
Pressing RES+ when there is no
longer a vehicle ahead or the
vehicle ahead is pulling away
and the brake is not applied will
cause ACC to resume.
When it is determined that there is
no vehicle ahead or the vehicle
ahead is beyond the selected
following gap, then the vehicle
speed will increase to the set speed.
Reducing Speed While ACC Is at a
Set Speed
If ACC is already activated, do one
of the following:
. Use the brake to get to the
desired lower speed. Release
the brake and press SET–. The
vehicle will now cruise at the
lower speed.
. Press and hold SET– until the
desired lower speed is reached,
then release it.
. To decrease the vehicle speed in
smaller increments, press SET−
briefly. For each press, the
vehicle goes about 1 km/h
(1 mph) slower. .
To decrease the vehicle speed in
larger increments, hold SET−.
While holding SET−, the vehicle
speed decreases to the next
5 km/h (5 mph) step, then
continues to decrease by 5 km/h
(5 mph) at a time.
The set speed can also be
decreased while the vehicle is
stopped.
. If stopped with the brake
applied, press or hold SET− until
the desired set speed is
displayed.
Selecting the Follow Distance Gap
When a slower moving vehicle is
detected ahead within the selected
following gap, ACC will adjust the
vehicle's speed and attempt to
maintain the follow distance gap
selected.
Press
[on the steering wheel to
adjust the following gap. Each press
cycles the gap button through three
settings: Far, Medium, or Near.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
236 Driving and Operating
Warning (Continued)
detect or avoid traffic that is
behind or alongside of the
vehicle. Always be prepared to
stop the vehicle during the
parking maneuver.
Press
Oon the center console to
enable the system to search for a
parking space that is large enough
and within 1.5 m (5 ft) of the vehicle.
The vehicle speed must be below
30 km/h (18 mph). The system
cannot:
. Detect whether it is a legal
parking space.
. Park exactly lined up with the
vehicle next to it if the spot is
approached at an angle or if the
parking space is angled.
. Park exactly centered in a spot
that is marked too large.
. Always detect short curbs. When enabled, APA searches for
parallel parking spaces to the right
of the vehicle. To search for a
parking space to the left, turn on the
left turn signal or, if available,
change the side selection in the
infotainment display. To switch the
parking mode between parallel and
perpendicular, press and hold
O
during the search process or,
if available, change the parking
mode in the infotainment display.
After completely passing a large
enough space, an audible beep
occurs and a red stop symbol is
displayed.
If the vehicle is in R (Reverse), but
does not steer into the expected
space, this may be because the system is maneuvering the vehicle
into a previously detected space.
The APA system does not need
service.
APA will instruct the vehicle to stop
once a large enough space is found.
Follow the displayed instructions.
When instructed to drive in reverse,
shift to R (Reverse) to engage
automatic steering. The steering
wheel will briefly vibrate as a
reminder to remove hands from the
steering wheel. Check surroundings
and continue braking or accelerating
as needed, and be prepared to stop
to avoid vehicles, pedestrians,
or objects.