2013 GMC TERRAIN ECU

Black plate (1,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
2013 GMC Terrain/Terrain Denali Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-15
Performance and Maintenance . . . . . . . . . . . . . . . . 1-19
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-1
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Vehicle Security . . . . . . . . . . . . . . 2-12
Exterior Mirrors . . . . . . . . . . . . . . . 2-14
Interior Mirrors . . . . . . . . . . . . . . . . 2-16
Windows . . . . . . . . . . . . . . . . . . . . . 2-16
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Safety Belts . . . . . . . . . . . . . . . . . . 3-11
Airbag System . . . . . . . . . . . . . . . . 3-19
Child Restraints . . . . . . . . . . . . . . 3-33 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 . . . . . . . . . . . . . . . . . . . . 5-6
Information Displays . . . . . . . . . . 5-21
Vehicle Messages . . . . . . . . . . . . 5-24
Vehicle Personalization . . . . . . . 5-31
Universal Remote System . . . . 5-36
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-4
Lighting Features . . . . . . . . . . . . . . 6-5
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance . . . . . . . . . . . . . . . . . . . 8-6
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-19
Engine Exhaust . . . . . . . . . . . . . . 9-25
Automatic Transmission . . . . . . 9-26
Drive Systems . . . . . . . . . . . . . . . . 9-29
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-30
Ride Control Systems . . . . . . . . 9-32
Cruise Control . . . . . . . . . . . . . . . . 9-35
Object Detection Systems . . . . 9-37
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-48
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-53
Conversions and Add-Ons . . . 9-59
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-3
Headlamp Aiming . . . . . . . . . . . 10-26
Bulb Replacement . . . . . . . . . . 10-27
Electrical System . . . . . . . . . . . . 10-32
Wheels and Tires . . . . . . . . . . . 10-38

Black plate (19,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
In Brief 1-19
Power Outlets
The accessory power outlets can be
used to connect electrical
equipment, such as a cell phone or
MP3 player.
There are four accessory power
outlets in the following locations:
below the CD slot, inside the center
console storage, on the rear of the
center console storage, and in the
rear cargo compartment.
To use the outlets, remove the cover
and close when not in use.
SeePower Outlets on page 5‑5.
Universal Remote System
This system, in the overhead
console, provides a way to replace
up to three remote control
transmitters used to activate
devices such as garage door
openers, security systems, and
home automation devices.
Read the instructions completely
before attempting to program the
Universal Remote system. Because
of the steps involved, it may be
helpful to have another person
available to assist with programming
the Universal Remote system.
SeeUniversal Remote System on
page 5‑36.
Performance and
Maintenance
Traction Control
System (TCS)
The traction control system limits
wheel spin. The system is on when
the vehicle is started.
.To turn off traction control,
press and release
gon the
console.
iilluminates and the
appropriate DIC message
displays. See Vehicle Messages
on page 5‑24.
.Press and releasegagain to
turn traction control back on.
See Traction Control System (TCS)
on page 9‑32.

Black plate (22,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
1-22 In Brief
Roadside Assistance and OnStar
(U.S. and Canada)
If the vehicle has an active OnStar
subscription, contact OnStar and the
vehicle’s current GPS location will
be sent to an OnStar advisor to
assess the situation, contact
Roadside Assistance, and relay the
exact location to send help.OnStar®
If equipped, this vehicle has a
comprehensive, in-vehicle system
that can connect to a live Advisor
for Emergency, Security, Navigation,
Connection, and Diagnostic
Services. SeeOnStar Overview on
page 14‑1.

Black plate (1,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
Keys, Doors, and Windows 2-1
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . 2-4
Door Locks . . . . . . . . . . . . . . . . . . . 2-6
Power Door Locks . . . . . . . . . . . . 2-7
Safety Locks . . . . . . . . . . . . . . . . . . 2-7
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-12
Vehicle Alarm System . . . . . . . 2-12
Immobilizer . . . . . . . . . . . . . . . . . . 2-13
Immobilizer Operation . . . . . . . 2-13
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-14
Power Mirrors . . . . . . . . . . . . . . . . 2-14
Heated Mirrors . . . . . . . . . . . . . . . 2-14
Blind Spot Mirrors . . . . . . . . . . . 2-14
Park Tilt Mirrors . . . . . . . . . . . . . . 2-15
Interior Mirrors
Manual Rearview Mirror . . . . . . 2-16
Automatic Dimming Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-16
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-16
Power Windows . . . . . . . . . . . . . 2-17
Sun Visors . . . . . . . . . . . . . . . . . . . 2-18
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-18
Keys and Locks
Keys
{WARNING
Leaving children in a vehicle with
the ignition key is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the keys in the
ignition, and children or others
could be caught in the path of a
closing window. Do not leave
children in a vehicle with the
ignition key.

Black plate (12,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
2-12 Keys, Doors, and Windows
To open the liftgate, press the touch
pad on the handle on the outside of
the liftgate, and lift the gate open. To
close the liftgate, use the pull cup to
lower the liftgate and close. With the
power liftgate disabled, the liftgate
electric latch will still power latch
once contact is made with the
striker. Always close the liftgate
before driving.
If
Von the RKE transmitter is
pressed while power operation is
disabled, the turn signals flash and
the liftgate will not move.
The liftgate has an electric latch.
If the battery is disconnected or has
low voltage, the liftgate will not
open. The liftgate will resume
operation when the battery is
reconnected and charged.
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
This vehicle has an anti-theft alarm
system.
Arming the System
To arm the system, do one of the
following:
.PressQon the RKE transmitter.
.Lock the vehicle using the key in
the driver door.
The alarm automatically arms after
about 30 seconds. The security
light, located on the instrument
panel, flashes.
Press
Von the RKE transmitter to
open the liftgate without setting off
the alarm. The system rearms when
the liftgate is closed.
Disarming the System
To disarm the system, do one of the
following:
.PressKon the RKE transmitter.
.Turn the ignition to ON/RUN.
.Allow the alarm to time out after
about 30 seconds and reset
itself.
If the system is armed and any door
is unlocked without pressing
Kon
the RKE transmitter, the alarm
sounds.
How to Detect a Tamper
Condition
IfKis pressed and the horn
sounds, an attempted break-in has
occurred while the system was
armed.
If the alarm has been activated, the
THEFT ATTEMPTED message will
appear on the DIC. See Key and
Lock Messages on page 5‑27 for
additional information.

Black plate (13,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
Keys, Doors, and Windows 2-13
Immobilizer
SeeRadio Frequency Statement on
page 13‑21 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the key is
removed from the ignition. The system is automatically
disarmed when the vehicle is
started with the correct key. The key
uses a transponder that matches an
immobilizer control unit in the
vehicle and automatically disarms
the system. Only an authorized key
starts the vehicle. The vehicle may
not start if the key is damaged.
The security light in the instrument
cluster comes on if there is a
problem with arming or disarming
the theft-deterrent system.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged
or the light continues to stay on, try
another ignition key. If the engine
does not start with the other key, the
vehicle needs service. If the vehicle
does start, the first key may be
damaged. See your dealer who can
service the theft-deterrent system
and have a new key made.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Black plate (1,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
Seats and Restraints 3-1
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats
Seat Adjustment . . . . . . . . . . . . . . 3-3
Power Seat Adjustment . . . . . . . 3-4
Lumbar Adjustment . . . . . . . . . . . 3-5
Reclining Seatbacks . . . . . . . . . . 3-5
Memory Seats . . . . . . . . . . . . . . . . 3-7
Heated Front Seats . . . . . . . . . . . 3-8
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . 3-11
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . 3-12
Lap-Shoulder Belt . . . . . . . . . . . 3-13 Safety Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . 3-17
Safety Belt Extender . . . . . . . . . 3-17
Safety System Check . . . . . . . . 3-17
Safety Belt Care . . . . . . . . . . . . . 3-18
Replacing Safety Belt System Parts after a Crash . . . . . . . . . 3-18
Airbag System
Airbag System . . . . . . . . . . . . . . . 3-19
Where Are the Airbags? . . . . . 3-21
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . 3-22
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . 3-24
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . 3-24
What Will You See after an Airbag Inflates? . . . . . . . . . . . . 3-24
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 3-26
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . 3-30 Adding Equipment to the
Airbag-Equipped Vehicle . . . 3-30
Airbag System Check . . . . . . . . 3-32
Replacing Airbag System Parts after a Crash . . . . . . . . . 3-32
Child Restraints
Older Children . . . . . . . . . . . . . . . 3-33
Infants and Young
Children . . . . . . . . . . . . . . . . . . . . 3-35
Child Restraint Systems . . . . . 3-37
Where to Put the Restraint . . . 3-39
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . 3-40
Replacing LATCH System Parts After a Crash . . . . . . . . . 3-45
Securing Child Restraints (Rear Seat) . . . . . . . . . . . . . . . . . 3-45
Securing Child Restraints (Front Passenger Seat) . . . . 3-48

Black plate (13,1)GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
Seats and Restraints 3-13
.Wear the shoulder belt over the
shoulder and across the chest.
These parts of the body are best
able to take belt restraining
forces. The shoulder belt locks if
there is a sudden stop or crash.
{WARNING
You can be seriously injured,
or even killed, by not wearing
your safety belt properly.
.Never allow the lap or
shoulder belt to become
loose or twisted.
.Never wear the shoulder belt
under both arms or behind
your back.
.Never route the lap or
shoulder belt over an
armrest.
Lap-Shoulder Belt
All seating positions in the vehicle
have a lap-shoulder belt.
The following instructions explain
how to wear a lap-shoulder belt
properly.
1. Adjust the seat, if the seat isadjustable, so you can sit up
straight. To see how, see “Seats”
in the Index.
2. Pick up the latch plate and pull the belt across you. Do not let it
get twisted.
The lap-shoulder belt may lock if
you pull the belt across you very
quickly. If this happens, let the
belt go back slightly to unlock it.
Then pull the belt across you
more slowly.
If the shoulder portion of a
passenger belt is pulled out all
the way, the child restraint
locking feature may be engaged.
If this happens, let the belt go
back all the way and start again.
3. Push the latch plate into the
buckle until it clicks.
Pull up on the latch plate to
make sure it is secure. If the belt
is not long enough, see Safety
Belt Extender on page 3‑17.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary.