2014 GMC TERRAIN check engine light

Black plate (18,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
5-18 Instruments and Controls
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. SeeTire Messages on
page 5-30. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the Tire
and Loading Information label. See
Tire Pressure on page 10-47. When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See
Tire Pressure Monitor
Operation on page 10-49.
Engine Oil Pressure Light
{Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine
oil low can also damage the
engine. The repairs would not be
covered by the vehicle warranty.
Check the oil level as soon as
possible. Add oil if required, but if
the oil level is within the operating
range and the oil pressure is still
low, have the vehicle serviced.
Always follow the maintenance
schedule for changing engine oil.
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced
by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.

Black plate (19,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
Instruments and Controls 5-19
Fuel Economy Light
For vehicles with the Fuel Economy
Mode light, it comes on when the
eco (economy) button near the shift
lever is pressed. For vehicles with a
Driver Information Center (DIC) an
ECO MODE ON message displays.
SeeFuel System Messages on
page 5-27. Press the button again
to turn off the light and exit the fuel
saver mode.
Low Fuel Warning Light
English Shown, Metric Similar
This light comes on for a few
seconds when the ignition is turned
on as a check to indicate it is
working. If it does not come on,
have it fixed.
The low fuel warning light is a circle
located on the fuel gauge. This light
comes on and a chime sounds
periodically when the vehicle is low
on fuel. The light goes off when fuel
is added to the fuel tank. For vehicles with a Driver
Information Center (DIC), see
Fuel
System Messages on page 5-27 for
more information.
Security Light
The security light should come on
briefly as the engine is started. If it
does not come on, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. See Immobilizer Operation
on page 2-14.

Black plate (59,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
Driving and Operating 9-59
Trailer Brakes
Does the trailer have its own
brakes? Be sure to read and follow
the instructions for the trailer brakes
so they are installed, adjusted, and
maintained properly.
Because the vehicle has antilock
brakes, do not tap into the vehicle's
brake system. If this is done, both
brake systems will not work well or
at all.
Trailer Sway
Control (TSC)
The vehicle has a TSC feature as
part of the StabiliTrak system.
If TSC detects that the trailer is
swaying, the vehicle's brakes are
automatically applied.
When TSC is applying the brakes,
the TCS/StabiliTrak indicator light
flashes to notify the driver to reduce
speed. If the trailer continues to
sway, StabiliTrak will reduce engine
torque to help slow the vehicle.
TSC will not function if StabiliTrak is
turned off. SeeTraction Control/
Electronic Stability Control on
page 9-33.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
warranty. Always check with your
dealer before adding electrical
equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle on page 3-29 andAdding
Equipment to the Airbag-Equipped
Vehicle on page 3-30.

Black plate (18,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
10-18 Vehicle Care
This will allow any pressure still
left to be vented out the
discharge hose.
2. Keep turning the pressure cap slowly, and remove it.
3. Fill the coolant surge tank withthe proper DEX-COOL coolant
mixture, to the COLD FILL line. 4. With the coolant surge tank
pressure cap off, start the
engine and let it run until the
upper radiator hose can be felt
getting hot. Watch out for the
engine cooling fan(s).
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
DEX-COOL coolant mixture to
the coolant surge tank until the
level reaches the COLD
FILL line.
5. Replace the pressure cap. Be sure the pressure cap is
hand-tight.{Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured. Check the level in the coolant
surge tank when the cooling system
has cooled down. If the coolant is
not at the proper level, repeat
Steps 1–3 and reinstall the pressure
cap. If the coolant still is not at the
proper level when the system cools
down again, see your dealer.
Engine Overheating
The vehicle has an indicator to warn
of engine overheating. There is an
engine coolant temperature warning
light on the vehicle's instrument
panel. See
Engine Coolant
Temperature Gauge on page 5-9.
The decision may be made not to lift
the hood when this warning
appears, but instead get service
help right away. See Roadside
Assistance Program on page 13-5.
If the decision to lift the hood is
made, make sure the vehicle is
parked on a level surface.

Black plate (9,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
Service and Maintenance 11-9
Battery
The battery supplies power to start
the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
.Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
.Belts may need replacing if they
squeak or show signs of
cracking or splitting.
.Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary. Brakes
Brakes stop the vehicle and are
crucial to safe driving.
.Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
.Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants on page 11-12 for GM
approved fluids.
.Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
.Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled. Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
.With a multi-point inspection,
your dealer can check the lamps
and note any concerns.

Black plate (1,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-2
Accessory Power . . . . . . . . . . . . . . 9-23
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-59
Additional Information
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-5
Air Cleaner/Filter, Engine . . . . . 10-12
Air Conditioning . . . . . . . . . . . . . . . . 8-3
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 8-7
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-30
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-23
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . . 3-25
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-23 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 3-23
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-22
Where Are the Airbags? . . . . . . 3-20
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-30
Passenger Status Indicator . . . 5-11
Readiness Light . . . . . . . . . . . . . . 5-10
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-29
System Check . . . . . . . . . . . . . . . . 3-19
Alarm Vehicle Security . . . . . . . . . . . . . . 2-13
Alert Side Blind Zone (SBZA) . . . . . . 9-41
All-Wheel Drive . . . . . . . . . 9-30, 10-24
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . 9-31
Warning Light . . . . . . . . . . . . . . . . . 5-15
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . 10-75
Interior . . . . . . . . . . . . . . . . . . . . . . 10-80
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . 13-5 Automatic
Climate Control System . . . . . . . . 8-3
Headlamp System . . . . . . . . . . . . . 6-2
Transmission . . . . . . . . . . . . . . . . . 9-27
Transmission Fluid . . . . . . . . . 10-12
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 9-29
Shift Lock Control
Function Check . . . . . . . . . . . 10-25
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-24Jump Starting . . . . . . . . . . . . . . . 10-69
Load Management . . . . . . . . . . . . . 6-5
Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . 5-24
Blade Replacement, Wiper . . . 10-26
Blind Spot Mirrors . . . . . . . . . . . . . 2-16
Brake System Warning Light . . . . . . . . 5-15
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-21 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-31
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-32
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-22
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-32
System Messages . . . . . . . . . . . . 5-25

Black plate (2,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
i-2 INDEX
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-19
Bulb Replacement . . . . . . . . . . . . 10-32Fog Lamps . . . . . . . . . . . . . 6-3, 10-29
Halogen Bulbs . . . . . . . . . . . . . . 10-28
Headlamp Aiming . . . . . . . . . . . 10-27
Headlamps . . . . . . . . . . . . . . . . . 10-28
Headlamps, Front TurnSignal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-28
License Plate Lamps . . . . . . . 10-32
Taillamps, Turn Signal,
Sidemarker, Stoplamps,
and Backup Lamps . . . . . . . . 10-29
Buying New Tires . . . . . . . . . . . . . 10-55
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-4
California Fuel Requirements . . . . . . . . . . . 9-49
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-2
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Camera Rear Vision (RVC) . . . . . . . . . . . . 9-43
Canadian Vehicle Owners . . . . . . . . iii Capacities and
Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-26
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Winter Driving . . . . . . . . . . . . . . . . 9-12
Cargo
Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Tie-Downs . . . . . . . . . . . . . . . . . . . . . 4-2
Cautions, Danger, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
Center Console Storage . . . . . . . . 4-1
Chains, Tire . . . . . . . . . . . . . . . . . . 10-60
Charging System Light . . . . . . . . 5-12
Check Engine Light . . . . . . . . . . . . . . . . . . 5-12
Ignition
Transmission Lock . . . . . . . . 10-25
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 3-33
Lower Anchors and Tethers for Children . . . . . . . . . 3-39
Older Children . . . . . . . . . . . . . . . . 3-31
Securing . . . . . . . . . . . . . . . . 3-44, 3-47
Systems . . . . . . . . . . . . . . . . . . . . . . 3-36 Cleaning
Exterior Care . . . . . . . . . . . . . . . 10-75
Interior Care . . . . . . . . . . . . . . . . 10-80
Climate Control Systems . . . . . . . 8-1 Air Conditioning . . . . . . . . . . . . . . . 8-1
Automatic . . . . . . . . . . . . . . . . . . . . . . 8-3
Heating . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Cluster, Instrument . . . . . . . . . . . . . 5-7
Collision Damage Repair . . . . . . 13-9
Compact Spare Tire . . . . . . . . . . 10-68
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-4 Messages . . . . . . . . . . . . . . . . . . . . 5-25
Connections
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-3
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 9-33
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convenience Net . . . . . . . . . . . . . . . 4-2
Convex Mirrors . . . . . . . . . . . . . . . . 2-15
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-15
Engine Temperature Gauge . . . 5-9

Black plate (4,1)GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-6081485) - 2014 - CRC - 12/6/13
i-4 INDEX
EngineAir Cleaner/Filter . . . . . . . . . . . 10-12
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 5-12
Compartment Overview . . . . . . . 10-5
Coolant . . . . . . . . . . . . . . . . . . . . . 10-15
Coolant Heater . . . . . . . . . . . . . . . 9-23
Coolant Temperature Gauge . . . 5-9
Cooling System . . . . . . . . . . . . . 10-14
Cooling System Messages . . . 5-25
Cover . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Drive Belt Routing . . . . . . . . . . . . 12-4
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-26
Oil Life System . . . . . . . . . . . . . .10-11
Oil Messages . . . . . . . . . . . . . . . . . 5-26
Overheating . . . . . . . . . . . . . . . . 10-18
Power Messages . . . . . . . . . . . . . 5-27
Pressure Light . . . . . . . . . . . . . . . . 5-18
Running While Parked . . . . . . . . 9-27
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-21
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-5
Equipment, Towing . . . . . . . . . . . . 9-58
Event Data Recorders . . . . . . . . 13-14
Extender, Safety Belt . . . . . . . . . . 3-17
Exterior Lamp Controls . . . . . . . . . 6-1F
Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Filter, Engine Air Cleaner . . . . . . . . . 10-12
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-3
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-60 Changing . . . . . . . . . . . . . . . . . . . 10-62
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-49
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-83
Fluid Automatic Transmission . . . . 10-12
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-22
Power Steering . . . . . . . . . . . . . 10-20
Washer . . . . . . . . . . . . . . . . . . . . . 10-21
Fog Lamps Bulb Replacement . . . . . . 6-3, 10-29
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . 9-38
Forward Collision Alert (FCA) Warning Light . . . . . . . . . 5-16
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20 Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-48 Additives . . . . . . . . . . . . . . . . . . . . . 9-49
Economy Driving . . . . . . . . . . . . . 1-20
Economy Light . . . . . . . . . . . . . . . 5-19
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-52
Filling the Tank . . . . . . . . . . . . . . . 9-50
Foreign Countries . . . . . . . . . . . . 9-49
Gasoline Specifications . . . . . . . 9-49
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Low Fuel Warning Light . . . . . . . 5-19
Recommended . . . . . . . . . . . . . . . 9-48
Requirements, California . . . . . 9-49
System Messages . . . . . . . . . . . . 5-27
Fuel Economy Mode . . . . . . . . . . . 9-29
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 10-33 Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-33
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-37