2012 GMC TERRAIN Brake system

Black plate (1,1)GMC Terrain Owner Manual (Include Mex) - 2012
2012 GMC Terrain Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-19
Performance and Maintenance . . . . . . . . . . . . . . . . 1-24
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Vehicle Security . . . . . . . . . . . . . . 2-13
Exterior Mirrors . . . . . . . . . . . . . . . 2-15
Interior Mirrors . . . . . . . . . . . . . . . . 2-17
Windows . . . . . . . . . . . . . . . . . . . . . 2-18
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . 3-10
Safety Belts . . . . . . . . . . . . . . . . . . 3-12
Airbag System . . . . . . . . . . . . . . . . 3-21
Child Restraints . . . . . . . . . . . . . . 3-35 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-2
Roof Rack System . . . . . . . . . . . . . 4-2
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-7
Information Displays . . . . . . . . . . 5-23
Vehicle Messages . . . . . . . . . . . . 5-26
Vehicle Personalization . . . . . . . 5-33
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-4
Lighting Features . . . . . . . . . . . . . . 6-5
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Audio Players . . . . . . . . . . . . . . . . 7-14
Rear Seat Infotainment . . . . . . . 7-22
Phone . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Trademarks and License Agreements . . . . . . . . . . . . . . . . . 7-46 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-5
Maintenance . . . . . . . . . . . . . . . . . . . 8-6
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-20
Engine Exhaust . . . . . . . . . . . . . . 9-28
Automatic Transmission . . . . . . 9-29
Drive Systems . . . . . . . . . . . . . . . . 9-32
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-32
Ride Control Systems . . . . . . . . 9-35
Cruise Control . . . . . . . . . . . . . . . . 9-38
Object Detection Systems . . . . 9-40
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-51
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-56
Conversions and Add-Ons . . . 9-64
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-4
Headlamp Aiming . . . . . . . . . . . 10-30
Bulb Replacement . . . . . . . . . . 10-32
Electrical System . . . . . . . . . . . . 10-38
Wheels and Tires . . . . . . . . . . . 10-44

Black plate (5,1)GMC Terrain Owner Manual (Include Mex) - 2012
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
$:Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
j: LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
J:OnStar®
}: Power
/:Remote Vehicle Start
>:Safety Belt Reminders
%: Steering Wheel Controls
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak®
M:Windshield Washer Fluid

Black plate (1,1)GMC Terrain Owner Manual (Include Mex) - 2012
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-5
Door Locks . . . . . . . . . . . . . . . . . . . 1-5
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Windows . . . . . . . . . . . . . . . . . . . . . . 1-7
Seat Adjustment . . . . . . . . . . . . . . 1-8
Memory Features . . . . . . . . . . . . 1-10
Heated Seats . . . . . . . . . . . . . . . . 1-11
Head Restraint Adjustment . . . . . . . . . . . . . . . . . 1-11
Safety Belts . . . . . . . . . . . . . . . . . . 1-12
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 1-12
Mirror Adjustment . . . . . . . . . . . . 1-13
Steering Wheel Adjustment . . . . . . . . . . . . . . . . . 1-13 Interior Lighting . . . . . . . . . . . . . . 1-14
Exterior Lighting . . . . . . . . . . . . . 1-14
Windshield Wiper/Washer . . . . 1-15
Climate Controls . . . . . . . . . . . . . 1-16
Parking Brake . . . . . . . . . . . . . . . 1-17
Transmission . . . . . . . . . . . . . . . . 1-18Vehicle Features
Radio(s) . . . . . . . . . . . . . . . . . . . . . 1-19
Satellite Radio . . . . . . . . . . . . . . . 1-19
Portable Audio Devices . . . . . . 1-20
Bluetooth
®. . . . . . . . . . . . . . . . . . . 1-20
Steering Wheel Controls . . . . . 1-20
Cruise Control . . . . . . . . . . . . . . . 1-21
Navigation System . . . . . . . . . . . 1-21
Driver Information Center (DIC) . . . . . . . . . . . . . . . 1-21
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . 1-22
Lane Departure Warning (LDW) . . . . . . . . . . . . . 1-22
Rear Vision Camera (RVC) . . . . . . . . . . . . . 1-23
Ultrasonic Parking Assist . . . . 1-23
Roof Rack System . . . . . . . . . . . 1-23
Power Outlets . . . . . . . . . . . . . . . 1-23
Performance and Maintenance
Traction Control System (TCS) . . . . . . . . . . . . . . 1-24
StabiliTrak
®System . . . . . . . . . 1-24
Tire Pressure Monitor . . . . . . . . 1-24
Engine Oil Life System . . . . . . 1-25
Fuel E85 (85% Ethanol) . . . . . 1-25
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-25
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-26
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-26

Black plate (17,1)GMC Terrain Owner Manual (Include Mex) - 2012
In Brief 1-17
Automatic Climate Control System
A. Fan Control
B. AUTO (Automatic Operation)
C. Air Delivery Mode Controls
D. Front Defrost
E. Recirculation
F. Temperature Control
G. PowerH. Driver and Passenger Heated
Seats
I. Rear Window Defogger
J. Air Conditioning
See Climate Control Systems on
page 8‑1 (If Equipped) or Automatic
Climate Control System on page 8‑3
(If Equipped).
Parking Brake
To set the parking brake, hold the
regular brake pedal down, then
push the parking brake pedal down.
If the ignition is on, the brake
system warning light will come on.
See Brake System Warning Light on
page 5‑16.

Black plate (25,1)GMC Terrain Owner Manual (Include Mex) - 2012
In Brief 1-25
During cooler conditions, the low tire
pressure warning light may appear
when the vehicle is first started and
then turn off. This may be an early
indicator that the tire pressures are
getting low and the tires need to be
inflated to the proper pressure.
The TPMS does not replace normal
monthly tire maintenance. It is the
driver’s responsibility to maintain
correct tire pressures.
See Tire Pressure Monitor System
on page 10‑52.
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and displays the CHANGE ENGINE
OIL SOON message when it is time
to change the engine oil and filter.
The oil life system should be reset
to 100% only following an oil
change. Resetting the Oil Life System
1. Turn the ignition to ON/RUN,
with the engine off.
2. Press the DIC MENU button to display the Vehicle
Information menu.
3. Press either the up or down arrows to view REMAINING
OIL LIFE.
4. Press the SET/CLR button until 100% is displayed.
5. Turn the key to LOCK/OFF.
Or:
1. Turn the ignition to ON/RUN with the engine off.
2. Fully press and release the accelerator pedal three times
within five seconds.
See Engine Oil Life System on
page 10‑12.
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).
See Fuel E85 (85% Ethanol) on
page 9‑53. For all other vehicles,
use only the unleaded gasoline
described under Recommended
Fuel on page 9‑51.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.

Black plate (27,1)GMC Terrain Owner Manual (Include Mex) - 2012
Seats and Restraints 3-27
prevent the driver from seeing out of
the windshield or being able to steer
the vehicle, nor does it prevent
people from leaving the vehicle.
{WARNING
When an airbag inflates, there
may be dust in the air. This dust
could cause breathing problems
for people with a history of
asthma or other breathing trouble.
To avoid this, everyone in the
vehicle should get out as soon as
it is safe to do so. If you have
breathing problems but cannot
get out of the vehicle after an
airbag inflates, then get fresh air
by opening a window or a door.
If you experience breathing
problems following an airbag
deployment, you should seek
medical attention.The vehicle has a feature that may
automatically unlock the doors, turn
the interior lamps on, turn the
hazard warning flashers on, and
shut off the fuel system after the
airbags inflate. You can lock the
doors, turn the interior lamps off,
and turn the hazard warning
flashers off by using the controls for
those features.
{WARNING
A crash severe enough to inflate
the airbags may have also
damaged important functions in
the vehicle, such as the fuel
system, brake and steering
systems, etc. Even if the vehicle
appears to be drivable after a
moderate crash, there may be
concealed damage that could
make it difficult to safely operate
the vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation.
Additional windshield breakage may
also occur from the front outboard
passenger airbag.
.Airbags are designed to inflate
only once. After an airbag
inflates, you will need some new
parts for the airbag system.
If you do not get them, the
airbag system will not be there
to help protect you in another
crash. A new system will include
airbag modules and possibly
other parts. The service manual
for the vehicle covers the need
to replace other parts.
.The vehicle has a crash sensing
and diagnostic module which
records information after a
crash. See
Vehicle Data
Recording and Privacy on
page 13‑19 andEvent Data
Recorders on page 13‑20.

Black plate (1,1)GMC Terrain Owner Manual (Include Mex) - 2012
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 5-4
Compass . . . . . . . . . . . . . . . . . . . . . 5-5
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Power Outlets . . . . . . . . . . . . . . . . . 5-6
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . 5-7
Instrument Cluster . . . . . . . . . . . . 5-8
Speedometer . . . . . . . . . . . . . . . . . 5-9
Odometer . . . . . . . . . . . . . . . . . . . . . 5-9
Tachometer . . . . . . . . . . . . . . . . . . . 5-9
Fuel Gauge . . . . . . . . . . . . . . . . . . . 5-9
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-10
Safety Belt Reminders . . . . . . . 5-11
Airbag Readiness Light . . . . . . 5-11 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-12
Charging System Light . . . . . . 5-13
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-13
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-16
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-17
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . 5-17
Forward Collision Alert (FCA) Warning Light . . . . . . . . . . . . . . 5-18
Traction Off Light . . . . . . . . . . . . 5-18
StabiliTrak
®OFF Light . . . . . . . 5-19
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-19
Tire Pressure Light . . . . . . . . . . 5-20
Engine Oil Pressure Light . . . . 5-20
Fuel Economy Light . . . . . . . . . 5-21
Low Fuel Warning Light . . . . . . 5-21
Security Light . . . . . . . . . . . . . . . . 5-21
High-Beam On Light . . . . . . . . . 5-22
Front Fog Lamp Light . . . . . . . . 5-22
Lamps On Reminder . . . . . . . . . 5-22
Cruise Control Light . . . . . . . . . 5-22
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . 5-23
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-26
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-26
Brake System Messages . . . . 5-27
Compass Messages . . . . . . . . . 5-27
Cruise Control Messages . . . . 5-27
Door Ajar Messages . . . . . . . . . 5-27
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-28
Engine Oil Messages . . . . . . . . 5-28
Engine Power Messages . . . . 5-29
Fuel System Messages . . . . . . 5-29
Key and Lock Messages . . . . . 5-29
Object Detection System Messages . . . . . . . . . . . . . . . . . . 5-29
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-30
Airbag System Messages . . . . 5-31
Safety Belt Messages . . . . . . . 5-31
Anti-theft Alarm System Messages . . . . . . . . . . . . . . . . . . 5-31
Service Vehicle Messages . . . 5-31

Black plate (16,1)GMC Terrain Owner Manual (Include Mex) - 2012
5-16 Instruments and Controls
.The OBD II (On-Board
Diagnostics) system determines
that critical emission control
systems have not been
completely diagnosed. The
vehicle would be considered not
ready for inspection. This can
happen if the 12-volt battery has
recently been replaced or run
down. The diagnostic system is
designed to evaluate critical
emission control systems during
normal driving. This can take
several days of routine driving.
If this has been done and the
vehicle still does not pass the
inspection for lack of OBD II
system readiness, your dealer
can prepare the vehicle for
inspection.Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working
MetricEnglish
The brake indicator light should
come on briefly as the engine is
started. If it does not come on have
the vehicle serviced by your dealer.
When the ignition is on, the brake
system warning light comes on
when the parking brake is set. The
light stays on if the parking brake
does not fully release. If it stays on
after the parking brake is fully released, there is a brake problem.
Have the brake system inspected
immediately.
{WARNING
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
If the light comes on while driving, a
chime sounds. Pull off the road and
stop. The pedal might be harder to
push or go closer to the floor.
It might also take longer to stop.
If the light is still on, have the
vehicle towed for service. See
Towing the Vehicle on page 10‑79.