2012 GMC TERRAIN service

Black plate (37,1)GMC Terrain Owner Manual (Include Mex) - 2012
Driving and Operating 9-37
When the stability control system
activates, the Traction Control
System (TCS)/StabiliTrak light will
flash on the instrument panel. This
also occurs when traction control or
TSC is activated. A noise may be
heard or vibration may be felt in the
brake pedal. This is normal.
Continue to steer the vehicle in the
intended direction.
If there is a problem detected with
StabiliTrak, SERVICE
STABILITRAK is displayed on the
Driver Information Center (DIC) and
dwill stay on. SeeRide Control
System Messages on page 5‑30. When this message is displayed
and/or
dcomes on and stays on,
the vehicle is safe to drive but the
system is not operational. Driving
should be adjusted accordingly.
If
dcomes on and stays on, reset
the system by:
1. Stopping the vehicle.
2. Turning the engine off and waiting 15 seconds.
3. Starting the engine.
If
dstill comes on and stays on at a
speed above 20 km/h (13 mph), see
your dealer for service.
gis located on the console.
Both StabiliTrak and Traction
Control can be turned off if needed
by pressing and holding
guntilg
andicome on the instrument
panel. This will also disable the TSC
feature. When StabiliTrak is turned
off, the system will not assist with
directional control of the vehicle or
limit wheel spin. Driving should be
adjusted accordingly. Press and
release
gagain to turn the system
back on.
If cruise control is being used when
StabiliTrak activates, the cruise
control will automatically disengage.
Press the cruise control button to re‐
engage when road conditions allow.
See Cruise Control on page 9‑38 for
more information.

Black plate (43,1)GMC Terrain Owner Manual (Include Mex) - 2012
Driving and Operating 9-43
Unnecessary Alerts
FCA may sometimes set
unnecessary alerts to turning
vehicles, vehicles in other lanes,
objects that are not vehicles,
or shadows. These alerts are
normal operation and the vehicle
does not need service.
Other Messages
There are messages that may
appear on the Driver Information
Center (DIC) in the instrument
cluster to provide information about
FCA. SeeObject Detection System
Messages on page 5‑29.
Cleaning the System
If the FCA system does not seem to
operate properly, clean the outside
of the windshield area in front of the
camera sensor before considering
taking the vehicle in for service.
Ultrasonic Parking Assist
For vehicles with the Ultrasonic
Rear Parking Assist (URPA) system,
it assists the driver with parking and
avoiding objects while in
R (Reverse). URPA operates at
speeds less than 8 km/h (5 mph),
and the sensors on the rear bumper
detect objects up to 2.5 m (8 ft)
behind the vehicle, and at least
20 cm (8 in) off the ground.
{WARNING
The URPA system does not
detect pedestrians, bicyclists,
animals, or any other objects
located below the bumper or that
are too close or too far from the
vehicle. To prevent injury, death,
or vehicle damage, even with
URPA, always check behind the
vehicle and check all mirrors
before backing.
How the System Works
URPA comes on automatically when
the shift lever is moved into
R (Reverse). A single tone sounds
to indicate the system is working.
URPA operates only at speeds less
than 8 km/h (5 mph).
An obstacle is indicated by audible
beeps. The interval between the
beeps becomes shorter as the
vehicle gets closer to the obstacle.
When the distance is less than
30 cm (12 in) the beeping is a
continuous tone for five seconds.
To be detected, objects must be at
least 20 cm (8 in) off the ground and
below liftgate level. Objects must
also be within 2.5 m (8 ft) from the
rear bumper. The distance objects
can be detected may be less during
warmer or humid weather.

Black plate (44,1)GMC Terrain Owner Manual (Include Mex) - 2012
9-44 Driving and Operating
Turning the System On and Off
The URPA system can be turned on
and off using the infotainment
system controls. SeeVehicle
Personalization on page 5‑33 for
more information.
When the system is off, PARK
ASSIST OFF displays on the Driver
Information Center (DIC). The
message disappears after a short
period of time.
URPA defaults to the on setting
each time the vehicle is started.
When the System Does Not
Seem to Work Properly
The following messages may be
displayed on the DIC:
SERVICE PARKING ASSIST: If
this message occurs, take the
vehicle to your dealer to repair the
system. PARK ASSIST OFF:
If the URPA
system does not activate due to a
temporary condition, the message
displays on the DIC. This can occur
under the following conditions:
.The driver has disabled the
system.
.The ultrasonic sensors are not
clean. Keep the vehicle's rear
bumper free of mud, dirt, snow,
ice, and slush. For cleaning
instructions, see Exterior Care
on page 10‑83.
.The park assist sensors are
covered by frost or ice. Frost or
ice can form around and behind
the sensors and may not always
be seen; this can occur after
washing the vehicle in cold
weather. The message may not
clear until the frost or ice has
melted.
.A trailer was attached to the
vehicle, or an object was
hanging out of the liftgate during
the last drive cycle. Once the
object is removed, URPA will
return to normal operation.
.A tow bar is attached to the
vehicle.
.The bumper is damaged. Take
the vehicle to your dealer to
repair the system.
.Other conditions, such as
vibrations from a jackhammer or
the compression of air brakes on
a very large truck, are affecting
system performance.

Black plate (46,1)GMC Terrain Owner Manual (Include Mex) - 2012
9-46 Driving and Operating
4. Select Rear Camera Options.
5. Select Camera. When a checkmark appears next to the
Camera option, then the RVC
system is on.
Symbols
The RVC system may have a
feature that lets the driver view
symbols on the radio screen while
using the RVC. The Ultrasonic Rear
Park Assist (URPA) system must
not be disabled to use the caution
symbols. The error message Rear
Parking Assist Symbols Unavailable
may display if URPA has been disabled and the symbols have
been turned on. See
Ultrasonic
Parking Assist on page 9‑43.
The symbols appear and may cover
an object when viewing the radio
screen when an object is detected
by the URPA system.
To turn the symbols on or off:
1. Shift into P (Park).
2. Press the CONFIG button.
3. Select Display.
4. Select Rear Camera Options.
5. Select Symbols. When a check mark appears next to the
Symbols option, symbols will
appear.
Guidelines
The RVC system has a guideline
overlay that can help the driver align
the vehicle when backing into a
parking spot. To turn the guidelines on or off:
1. Shift into P (Park).
2. Press the CONFIG button.
3. Select Display.
4. Select Rear Camera Options.
5. Select Guidelines. When a
check mark appears next to the
Guidelines option, guidelines will
appear.
Rear Vision Camera Error
Messages
SERVICE REAR VISION CAMERA
SYSTEM: This message can
display on the radio screen when
the system is not receiving
information it requires from other
vehicle systems.
If any other problem occurs or if a
problem persists, see your dealer.

Black plate (50,1)GMC Terrain Owner Manual (Include Mex) - 2012
9-50 Driving and Operating
To change the volume of the
warning chime, see“Chime Volume”
under Vehicle Personalization on
page 5‑33 for more information.
When the System Does Not
Seem To Work Properly
If the LDW symbol does not appear:
.The lane markings on the road
may not be seen.
.The camera sensor may be
blocked by dirt, snow or ice.
.The windshield may be
damaged.
.The weather may be limiting
visibility.
This is normal operation; the vehicle
does not need service. Clean the
windshield.
{WARNING
If the LDW camera sensor is
blocked by dirt, snow, or ice, or if
the windshield is damaged, it may
not detect a vehicle ahead. LDW
may not help avoid a collision
under these conditions. Do not
rely on LDW when the camera is
blocked by snow, ice, or dirt.
Keep the windshield clean.
{WARNING
If the headlamps are not cleaned
or properly aimed, the LDW
system may not detect lanes
ahead. LDW may not help avoid a
collision under these conditions.
Keep the headlamps clean and
properly aimed. LDW warnings may occasionally
occur due to tar marks, shadows,
cracks in the road, or other road
imperfections. This is normal system
operation, the vehicle does not need
service.
LDW Messages
FRONT CAMERA BLOCKED,
CLEAN WINDSHIELD:
This
message may appear because the
front camera is blocked and cannot
operate properly. It may also
activate during heavy rain or due to
road spray.
LANE DEPARTURE SYSTEM
UNAVAILABLE: This message
may appear if LDW does not
activate due to a temporary
condition.
SERVICE FRONT CAMERA: This
message may appear to indicate
that LDW is not working properly.
If this message remains on after
continued driving, the system needs
service. Take the vehicle to your
dealer.

Black plate (51,1)GMC Terrain Owner Manual (Include Mex) - 2012
Driving and Operating 9-51
Fuel
Use of the recommended fuel is an
important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
Vehicles that have a FlexFuel badge
and a yellow fuel cap can use either
unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85).
SeeFuel E85 (85% Ethanol) on
page 9‑53. For all other vehicles,
use only the unleaded gasoline
described under Recommended
Fuel on page 9‑51.
Recommended Fuel
Use regular unleaded gasoline with
a posted octane rating of 87 or
higher. If the octane rating is less
than 87, an audible knocking noise, commonly referred to as spark
knock, might be heard when driving.
If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. If heavy knocking is heard
when using gasoline rated at
87 octane or higher, the engine
needs service.
Gasoline Specifications
(U.S. and Canada Only)
At a minimum, gasoline should
meet ASTM specification D 4814 in
the United States or CAN/CGSB‐3.5
or 3.511 in Canada. Some
gasolines contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. See
Fuel Additives
on page 9‑52 for additional
information.

Black plate (53,1)GMC Terrain Owner Manual (Include Mex) - 2012
Driving and Operating 9-53
Gasolines containing oxygenates,
such as ethers and ethanol, and
reformulated gasolines might be
available in your area. We
recommend that you use these
gasolines, if they comply with the
specifications described earlier.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must not be used in
vehicles that were not designed for
those fuels.
Notice:This vehicle was not
designed for fuel that contains
methanol. Do not use fuel
containing methanol. It can
corrode metal parts in the fuel
system and also damage plastic
and rubber parts. That damage
would not be covered under the
vehicle warranty. Some gasolines that are not
reformulated for low emissions can
contain an octane-enhancing
additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant
where you buy gasoline whether the
fuel contains MMT. We recommend
against the use of such gasolines.
Fuels containing MMT can reduce
spark plug life and affect emission
control system performance. The
malfunction indicator lamp might
turn on. If this occurs, return to your
dealer for service.
Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge
and a yellow fuel cap can use either
unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85).
For all other vehicles, use only the
unleaded gasoline described under
Recommended Fuel on page 9‑51.We encourage the use of E85 in
vehicles that are designed to use it.
The ethanol in E85 is a
“renewable”
fuel, meaning it is made from
renewable sources such as corn
and other crops.
Many service stations will not have
an 85% ethanol fuel (E85) pump
available. The U.S. Department of
Energy has an alternative fuels
website (www.afdc.energy.gov/afdc/
locator/stations/) that can help you
find E85 fuel. Those stations that do
have E85 should have a label
indicating ethanol content. Do not
use the fuel if the ethanol content is
greater than 85%.

Black plate (60,1)GMC Terrain Owner Manual (Include Mex) - 2012
9-60 Driving and Operating
Parking on Hills
{WARNING
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if facing
downhill or into traffic if facing
uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the brake pedal
until the chocks absorb the load. 4. Reapply the brake pedal. Then
apply the parking brake and shift
into P (Park).
5. Release the brake pedal.Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer is clear of the chocks.
7. Stop and have someone pick up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See this
manual's Maintenance Schedule or
Index for more information. Things
that are especially important in
trailer operation are automatic
transmission fluid, engine oil, axle lubricant, belts, cooling system and
brake system. Inspect these before
and during the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See
Engine Overheating
on page 10‑20.
Trailer Towing
Before pulling a trailer, there are
three important considerations that
have to do with weight:
.The weight of the trailer
.The weight of the trailer tongue
.The total weight on the vehicle's
tires