engine GMC TERRAIN 2015 Owner's Guide

Black plate (30,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
5-30 Instruments and Controls
TIRE LEARNING ACTIVE
This message displays when the
system is learning new tires. See
Tire Pressure Monitor Operation on
page 10-47.
TIRE LOW ADD AIR TO TIRE
This message displays when the
pressure in one or more of the tires
is low.
This message also displays LEFT
FRONT, RIGHT FRONT, LEFT
REAR, or RIGHT REAR to indicate
the location of the low tire.
The low tire pressure warning light
will also come on. SeeTire
Pressure Light on page 5-17.
If a tire pressure message appears
on the DIC, stop as soon as you
can. Inflate the tires by adding air
until the tire pressure is equal to the
values shown on the Tire and
Loading Information label. See Tires
on page 10-38, Vehicle Load Limits
on page 9-14, and Tire Pressure on
page 10-45. You can receive more than one tire
pressure message at a time. The
DIC also shows the tire pressure
values. See
Driver Information
Center (DIC) on page 5-20.
Transmission Messages
SERVICE TRANSMISSION
This message displays if there is a
problem with the transmission. See
your dealer.
SHIFT TO PARK
This message displays when the
transmission needs to be shifted to
P (Park). This may appear when
attempting to remove the key from
the ignition or from the vehicle if the
vehicle is not in P (Park).
TRANSMISSION HOT —IDLE
ENGINE
This message displays and a chime
sounds if the transmission fluid in
the vehicle gets hot. Driving with the
transmission fluid temperature high
can cause damage to the vehicle. Stop the vehicle and let it idle to
allow the transmission to cool. This
message clears when the fluid
temperature reaches a safe level.
Vehicle Reminder
Messages
ICE POSSIBLE DRIVE
WITH CARE
This message is displayed when ice
conditions are possible.
TURN WIPER CONTROL TO
INTERMITTENT FIRST
This message is displayed when
attempting to adjust the intermittent
wiper speed without intermittent
selected on the wiper control. See
Windshield Wiper/Washer on
page 5-2.

Black plate (3,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
Lighting 6-3
is in the full bright position. See
Instrument Panel Illumination
Control on page 6-4.
Lights On with Wipers
If the windshield wipers are
activated in daylight with the engine
on, and the exterior lamp control is
in AUTO, the headlamps, parking
lamps, and other exterior lamps
come on. The transition time for the
lamps coming on varies based on
wiper speed. When the wipers are
not operating, these lamps turn off.
Move the exterior lamp control to
P
or;to disable this feature.
Hazard Warning Flashers
|(Hazard Warning Flasher):
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
briefly pressed and released, the
turn signal flashes three times.
The lever returns to its starting
position when it is released.
If after signaling a turn or a lane
change the arrows flash rapidly or
do not come on, a signal bulb may
be burned out.

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
Driving and Operating 9-1
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . . 9-2
Defensive Driving . . . . . . . . . . . . . 9-3
Drunk Driving . . . . . . . . . . . . . . . . . 9-3
Control of a Vehicle . . . . . . . . . . . 9-3
Braking . . . . . . . . . . . . . . . . . . . . . . . 9-3
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-4
Off-Road Recovery . . . . . . . . . . . . 9-5
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Driving . . . . . . . . . . . . . . 9-6
Driving on Wet Roads . . . . . . . 9-10
Hill and Mountain Roads . . . . . 9-11
Winter Driving . . . . . . . . . . . . . . . 9-12
If the Vehicle Is Stuck . . . . . . . . 9-13
Vehicle Load Limits . . . . . . . . . . 9-14
Starting and Operating
New Vehicle Break-In . . . . . . . . 9-19
Ignition Positions . . . . . . . . . . . . 9-19
Starting the Engine . . . . . . . . . . 9-21
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . 9-22
Engine Coolant Heater . . . . . . . 9-22 Shifting Into Park . . . . . . . . . . . . 9-24
Shifting out of Park . . . . . . . . . . 9-25
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . 9-25
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 9-25
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . 9-26
Automatic Transmission
Automatic Transmission . . . . . 9-26
Manual Mode . . . . . . . . . . . . . . . . 9-28
Fuel Economy Mode . . . . . . . . . 9-29
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . 9-30
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . 9-30
Parking Brake . . . . . . . . . . . . . . . 9-31
Brake Assist . . . . . . . . . . . . . . . . . 9-32
Hill Start Assist (HSA) . . . . . . . 9-32
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . 9-32
Cruise Control
Cruise Control . . . . . . . . . . . . . . . 9-34
Driver Assistance Systems
Forward Collision Alert (FCA)System . . . . . . . . . . . . . . . . . . . . . 9-37
Parking Assist . . . . . . . . . . . . . . . 9-39
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . 9-40
Rear Vision Camera (RVC) . . . . . . . . . . . . . 9-42
Lane Departure Warning (LDW) . . . . . . . . . . . . . 9-45
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . 9-46
California FuelRequirements . . . . . . . . . . . . . . 9-47
Fuels in Foreign Countries . . . 9-48
Fuel Additives . . . . . . . . . . . . . . . 9-48
E85 or FlexFuel . . . . . . . . . . . . . . 9-48
Filling the Tank . . . . . . . . . . . . . . 9-49
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 9-50
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . 9-51
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . 9-51

Black plate (4,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
9-4 Driving and Operating
If the engine ever stops while the
vehicle is being driven, brake
normally but do not pump the
brakes. Doing so could make the
pedal harder to push down. If the
engine stops, there will be some
power brake assist but it will be
used when the brake is applied.
Once the power assist is used up, it
can take longer to stop and the
brake pedal will be harder to push.
Steering
Electric Power Steering (2.4L
L4 Engine)
If 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 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.
If the steering assist is used for an
extended period of time, power
assist may be reduced.
Normal use of the power steering
assist should return when the
system cools down.
See specific vehicle steering
messages under
Service Vehicle
Messages on page 5-29Hydraulic Power Steering (3.6L
V6 Engine)
If your vehicle has hydraulic power
steering, it may require
maintenance. See Power Steering
Fluid (2.4L L4 Engine) on
page 10-20 orPower Steering Fluid
(3.6L V6 Engine) on page 10-20.
If power steering is lost because the
engine stops or a system
malfunctions, the vehicle can be steered but may require increased
effort. See your dealer if there is a
problem.
{Caution
If the steering wheel is turned
until it reaches the end of its
travel, and is held in that position
for more than 15 seconds,
damage may occur to the power
steering system and there may be
loss of power steering assist.
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.

Black plate (6,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
9-6 Driving and Operating
material on the road. Learn to
recognize warning clues—such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
.Try to avoid sudden steering,
acceleration, or braking,
including reducing vehicle speed
by shifting to a lower gear. Any
sudden changes could cause
the tires to slide.
Remember: Antilock brakes help
avoid only the braking skid.
Off-Road Driving
All-wheel-drive vehicles can be
used for off-road driving. Vehicles
without all-wheel drive and vehicles
not equipped with All Terrain (AT) or
On-Off Road (OOR) tires must not
be driven off-road except on a level,
solid surface. To contact the tire
manufacturer for more information
about the original equipment tires, see the Limited Warranty and
Owner Assistance Information
manual.
Controlling the vehicle is the key to
successful off-road driving. One of
the best ways to control the vehicle
is to control the speed.
{Warning
When driving off-road, bouncing
and quick changes in direction
can easily throw you out of
position. This could cause you to
lose control and crash. You and
your passengers should always
wear safety belts.
Before Driving Off-Road
.Have all necessary maintenance
and service work completed.
.Fuel the vehicle, fill fluid levels,
and check inflation pressure in
all tires, including the spare,
if equipped.
.Read all the information about
all-wheel-drive vehicles in this
manual.
.Make sure all underbody
shields, if equipped, are properly
attached.
.Know the local laws that apply to
off-road driving.
To gain more ground clearance if
needed, it may be necessary to
remove the front fascia lower air
dam. However, driving without the
air dam reduces fuel economy.
{Caution
Operating the vehicle for
extended periods without the front
fascia lower air dam installed can
cause improper air flow to the
engine. Re-attach the front fascia
air dam after off-road driving.

Black plate (8,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
9-8 Driving and Operating
.Use headlamps even during the
day to make the vehicle more
visible.
{Warning
Driving to the top of a hill at high
speed can cause an accident.
There could be a drop-off,
embankment, cliff, or even
another vehicle. You could be
seriously injured or killed. As you
near the top of a hill, slow down
and stay alert.
.Never go downhill forward or
backward with the transmission
in N (Neutral). The brakes could
overheat and you could lose
control.
.When driving down a hill, keep
the vehicle headed straight
down. Use a low gear because
the engine will work with the
brakes to slow the vehicle and
help keep the vehicle under
control.
{Warning
Heavy braking when going down
a hill can cause your brakes to
overheat and fade. This could
cause loss of control and you or
others could be injured or killed.
Apply the brakes lightly when
descending a hill and use a low
gear to keep vehicle speed under
control.
If the vehicle stalls on a hill:
1. Apply the brakes to stop the vehicle, and then apply the
parking brake.
2. Shift into P (Park) and then restart the engine.
.If driving uphill when the
vehicle stalls, shift to
R (Reverse), release the
parking brake, and back
straight down.
.Never try to turn the vehicle
around. If the hill is steep
enough to stall the vehicle,
it is steep enough to cause
it to roll over.
.If you cannot make it up the
hill, back straight down
the hill.
.Never back down a hill in
N (Neutral) using only the
brake.
.The vehicle can roll
backward quickly and you
could lose control.
.If driving downhill when the
vehicle stalls, shift to a
lower gear, release the
parking brake, and drive
straight down the hill.
3. If the vehicle cannot be restarted after stalling, set the parking
brake, shift an automatic
transmission into P (Park), and
turn the vehicle off.
3.1. Leave the vehicle and seek help.

Black plate (10,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
9-10 Driving and Operating
Driving in Water
{Warning
Driving through rushing water can
be dangerous. Deep water can
sweep your vehicle downstream
and you and your passengers
could drown. If it is only shallow
water, it can still wash away the
ground from under your tires.
Traction could be lost, and the
vehicle could roll over. Do not
drive through rushing water.
{Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive slowly through it. At faster
speeds, water splashes on the ignition system and the vehicle can
stall. Stalling can also occur if you
get the exhaust pipe under water.
While the exhaust pipe is under
water, you will not be able to start
the engine. When going through
water, the brakes get wet, and it
might take longer to stop. See
Driving on Wet Roads on
page 9-10.
After Off-Road Driving
Remove any brush or debris that
has collected on the underbody or
chassis, or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand,
have the brake linings cleaned and
checked. These substances can
cause glazing and uneven braking.
Check the body structure, steering,
suspension, wheels, tires, and
exhaust system for damage and
check the fuel lines and cooling
system for any leakage.
More frequent maintenance service
is required. Refer to the
Maintenance Schedule on
page 11-2
for more information.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep‐standing or flowing water.
{Warning
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
(Continued)

Black plate (11,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7707484) - 2015 - crc - 10/1/14
Driving and Operating 9-11
Warning (Continued)
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. See
Tires on
page 10-38.
.Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
(Continued)