2018 GMC TERRAIN Owner's Manual

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
216 Driving and Operating
Hill Descent
Control (HDC)
HDC can be used when driving
downhill. It sets and maintains
vehicle speed while descending a
very steep incline in a forward or
reverse gear.
The HDC switch is on the center
console.
Press
5to enable or disable HDC.
Vehicle speed must be below
50 km/h (31 mph).
The HDC light displays on the
instrument cluster when enabled.
HDC can maintain vehicle speeds
between 3 and 22 km/h (2 and
14 mph) on an incline greater than
or equal to a 10% grade. A blinking 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
Driver Mode Control Knob
for FWD

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Driving and Operating 217
Driver Mode Control Knobfor 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 (AWD vehicles)
or is the normal drive mode (FWD
vehicles). Tour Mode is the most
fuel efficient drive mode. See
Driving for Better Fuel Economy
0 26. When selecting Tour Mode,
the AWD light will flash briefly while
the system disables, and then
stays off.
4AWD Mode : In AWD Mode, the
AWD system delivers power to all
four wheels and the system adjusts
as needed to improve traction.
Selecting AWD Mode will activate
the system. The AWD light will flash
briefly while the system is engaging
and stay on to indicate AWD is
active. AWD Mode will stay selected
until the mode is changed. AWD is
active in Tow/Haul and Off-Road
Modes. AWD Mode is only available
on vehicles equipped with All-Wheel
Drive.
Tow/Haul and Off-Road Modes are
canceled with each ignition cycle
and will return to the Tour Mode.
When using a compact spare tire on
an AWD vehicle, the system
automatically detects the compact
spare and reduces AWD
performance to protect the system.
To restore full AWD operation and
prevent excessive wear on the
system, replace the compact spare
tire with a full-size tire as soon as
possible. See Compact Spare Tire
0 334.6Snow Mode : Snow Mode
improves vehicle acceleration on
snow and ice-covered roads. Snow
Mode is not available on vehicles
equipped with all wheel drive.
7Off-Road Mode : Use Off-Road
Mode for public off-road recreational
driving. See Off-Road Driving 0174.
Off-Road Mode is only available on
vehicles equipped with All-Wheel
Drive.
_Tow/Haul Mode : Tow/Haul
Mode can assist when towing or
hauling a heavy load. It changes
transmission shift patterns, turns on
AWD, if equipped, and increases
trailer sway control assistance.
When Tow/Haul is activated, the
Tow/Haul symbol will come on in the
instrument cluster. See Driving
Characteristics and Towing Tips
0 251. Tow/Haul Mode is only
available on vehicles with the towing
package.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
218 Driving and Operating
Automatic Engine Grade Braking
assists when driving downhill.
It maintains vehicle speed by
automatically implementing a shift
pattern that uses the engine and the
transmission to slow the vehicle.
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. See
Manual Mode
0208.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Driving and Operating 219
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-10664916) - 2018 - crc - 9/15/17
220 Driving and Operating
Cruise Control
The cruise control lets the vehicle
maintain a speed of about 40 km/h
(25 mph) or more without keeping
your foot on the accelerator. Cruise
control does not work at speeds
below 40 km/h (25 mph).
{Warning
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. Do not use
cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads.
With the Traction Control System
(TCS) or Electronic Stability Control
(ESC), the system may begin to
limit wheel spin while you are using
cruise control. If this happens, the
cruise control will automatically disengage. See
Traction Control/
Electronic Stability Control 0213.
If a collision alert occurs when
cruise control is activated, cruise
control is disengaged. See Forward
Collision Alert (FCA) System 0228.
When road conditions allow you to
safely use it again, cruise control
can be turned back on.
Cruise control will disengage if
either TCS or StabiliTrak is
turned off.
If Hill Descent Control (HDC) is
engaged, cruise control disengages.
See Hill Descent Control (HDC)
0 216.
If the brakes are applied, cruise
control disengages.
5: Press to turn the cruise control
system on and off. A white indicator
comes on in the instrument cluster
when cruise control is turned on.
*: Press to disengage cruise
control without erasing the set
speed from memory.
+RES : If there is a set speed in
memory, press briefly to resume that
speed or press and hold to
accelerate. If cruise control is
already active, use to increase
vehicle speed.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Driving and Operating 221
–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 0119. 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 0119.
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 0119.
The increment value used depends
on the units displayed.
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase the vehicle speed. When
you take your foot off the pedal, the
vehicle will slow down to the
previous set cruise speed. While
pressing the accelerator pedal or
shortly following the release to
override cruise control, briefly

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
222 Driving and Operating
pressing–SET will result in cruise
control set to the current vehicle
speed.
Using Cruise Control on Hills
How well the cruise control works
on hills depends upon the vehicle
speed, load, and the steepness of
the hills. When going up steep hills,
you might have to step on the
accelerator pedal to maintain the
vehicle speed. When going
downhill, you might have to brake or
shift to a lower gear to keep your
speed down. If the brake pedal is
applied, cruise control will
disengage. Ending Cruise Control
There are four ways to end cruise
control:
.
Step lightly on the brake pedal.
. Press
*.
. Shift the transmission to
N (Neutral).
. To turn off cruise control,
press
5.
Erasing Speed Memory
The cruise control set speed is
erased from memory if
5is pressed
or if the ignition is turned off.
Driver Assistance
Systems
This vehicle may have features that
work together to help avoid crashes
or reduce crash damage while
driving, backing, and parking. Read
this entire section before using
these systems.
{Warning
Do not rely on the Driver
Assistance Systems. These
systems do not replace the need
for paying attention and driving
safely. You may not hear or feel
alerts or warnings provided by
these systems. Failure to use
proper care when driving may
result in injury, death, or vehicle
damage. See Defensive Driving
0 171.
(Continued)

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Driving and Operating 223
Warning (Continued)
Under many conditions, these
systems will not:. Detect children,
pedestrians, bicyclists,
or animals.
. Detect vehicles or objects
outside the area monitored
by the system.
. Work at all driving speeds.
. Warn you or provide you
with enough time to avoid a
crash.
. Work under poor visibility or
bad weather conditions.
. Work if the detection sensor
is not cleaned or is covered
by ice, snow, mud, or dirt.
(Continued)
Warning (Continued)
.Work if the detection sensor
is covered up, such as with
a sticker, magnet, or metal
plate.
. Work if the area surrounding
the detection sensor is
damaged or not properly
repaired.
Complete attention is always
required while driving, and you
should be ready to take action
and apply the brakes and/or steer
the vehicle to avoid crashes.
Audible or Safety Alert Seat
Some driver assistance features
alert the driver of obstacles by
beeping. To change the volume of
the warning chime, see “Comfort
and Convenience” underVehicle
Personalization 0142.
If equipped with the Safety Alert
Seat, the driver seat cushion may
provide a vibrating pulse alert instead of beeping. To change this,
see
“Collision/Detection Systems”
under Vehicle Personalization
0 142.
Assistance Systems for
Parking or Backing
If equipped, the Rear Vision Camera
(RVC), Rear Parking Assist (RPA),
Front Parking Assist (FPA),
Surround Vision, Front Vision
Camera, Rear Cross Traffic Alert
(RCTA), and Automatic Parking
Assist (APA) may help the driver
park or avoid objects. Always check
around the vehicle when parking or
backing.
Rear Vision Camera (RVC)
When the vehicle is shifted into
R (Reverse), the RVC displays an
image of the area behind the vehicle
in the infotainment display. The
previous screen displays when the
vehicle is shifted out of R (Reverse)
after a short delay. To return to the
previous screen sooner, press any
button on the infotainment display,
shift into P (Park), or reach a vehicle