Page 279 of 428
Black plate (5,1)GMC Terrain Owner Manual (Include Mex) - 2012
Vehicle Care 10-5
Hood
To open the hood:
1. Pull the release handle locatedbelow the instrument panel to
the left of the steering wheel.
2. Move the secondary hoodrelease lever to the right to
release the striker. The lever is
near the middle of the hood.
3. Lift the hood. To close the hood:
1. Before closing the hood, be sure
all the filler caps are on properly.
2. Lower the hood 30 cm (12 in) above the vehicle and release it
so it fully latches. Check to
make sure the hood is closed
and repeat the process if
necessary.
Page 298 of 428

Black plate (24,1)GMC Terrain Owner Manual (Include Mex) - 2012
10-24 Vehicle Care
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications inCapacities and
Specifications on page 12‑2.
Brake linings should always be
replaced as complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service might be
required.
Brake Adjustment
Every time the brakes are applied,
with or without the vehicle moving,
the brakes adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is
complex. Its many parts have to be
of top quality and work well together
if the vehicle is to have really good
braking. The vehicle was designed
and tested with top-quality brake
parts. When parts of the braking
system are replaced, be sure to get
new, approved replacement parts.
If this is not done, the brakes might
not work properly. For example,
installing disc brake pads that are
wrong for the vehicle, can change
the balance between the front and
rear brakes —for the worse. The
braking performance expected can
change in many other ways if the
wrong replacement brake parts are
installed.
Brake Fluid
The brake master cylinder reservoir
is filled with DOT 3 brake fluid as
indicated on the reservoir cap. See
Engine Compartment Overview on
page 10‑6 for the location of the
reservoir.
There are only two reasons why the
brake fluid level in the reservoir
might go down:
.The brake fluid level goes down
because of normal brake lining
wear. When new linings are
installed, the fluid level goes
back up.
Page 300 of 428

Black plate (26,1)GMC Terrain Owner Manual (Include Mex) - 2012
10-26 Vehicle Care
Battery
Refer to the replacement number on
the original battery label when a
new battery is needed.
{WARNING
Battery posts, terminals, and
related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.
Vehicle Storage
{WARNING
Batteries have acid that can burn
you and gas that can explode.
You can be badly hurt if you are
not careful. SeeJump Starting on
page 10‑76 for tips on working
around a battery without
getting hurt. Infrequent Usage: Remove the
black, negative (−) cable from the
battery to keep the battery from
running down.
Extended Storage: Remove the
black, negative (−) cable from the
battery or use a battery trickle
charger.
All-Wheel Drive
Transfer Case
When to Check and Change
Lubricant
Refer to the Maintenance Schedule
to determine how often to check the
lubricant and when to change it.
See
Maintenance Schedule on
page 11‑3. How to Check Lubricant
To get an accurate reading, the
vehicle should be on a level
surface.
If the level is below the bottom of
the fill plug hole, located on the
transfer case, the vehicle will need
some lubricant added. Add enough
lubricant to raise the level to the
bottom of the fill plug hole. A fluid
loss could indicate a problem; check
and have it repaired, if needed.
Page 306 of 428
Black plate (32,1)GMC Terrain Owner Manual (Include Mex) - 2012
10-32 Vehicle Care
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs on
page 10‑37.
For any bulb changing procedure
not listed in this section, contact
your dealer.
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps
A. Low-Beam Headlamp
B. High-Beam Headlamp
C. Sidemarker Lamp
D. Park/Turn Signal Lamp To replace one of these bulbs:
1. Turn the tire to reach the access
port cap located in the front of
wheel well cover.A. Screw
B. Access Port Cap
2. Remove the screw (A) and turn the access port cap (B)
counterclockwise to remove.
3. If replacing a headlamp bulb, remove the dust cover cap from
the back of the headlamp
housing by turning the cap
counterclockwise.
Page 307 of 428
Black plate (33,1)GMC Terrain Owner Manual (Include Mex) - 2012
Vehicle Care 10-33
4. Turn the bulb socketcounterclockwise to remove it
from the lamp assembly.
5. Remove the bulb from the socket or disconnect the bulb
assembly from the harness
connector.
6. Install the new bulb.
7. Reinstall the bulb socket to the lamp assembly, turning
clockwise.
8. Replace the dust cover cap on headlamps.
9. Reinstall the wheel well cover access port cap and secure by
installing the screw.Fog Lamps
To replace one of these bulbs:
1. Locate the fog lamp assemblyunder the front facia.
2. Disconnect the bulb socket from the electrical connector, turn,
and pull out the bulb assembly. 3. Remove the old bulb from the
bulb socket and push the new
bulb straight into the bulb socket
until it connects.
4. Push the bulb socket into the fog lamp assembly and turn
clockwise to lock it into place.
5. Reconnect the bulb socket to the electrical connector.
Page 317 of 428
Black plate (43,1)GMC Terrain Owner Manual (Include Mex) - 2012
Vehicle Care 10-43
Mini Fuses Usage1 Steering Wheel
Dimming
2 Spare
3 Spare
4 Body Control
Module 1
5 Infotainment
6 Body Control
Module 7
7 Noise Control
Module
8 Body Control
Module 4
9 Radio
10 Special Equipment
Order Battery
11 Ultrasonic Rear
Parking Assist
Module Mini Fuses Usage
12 Heater, Ventilation
and Air Conditioning
Battery
13 Auxiliary Power
Front
14 Heater, Ventilation
and Air Conditioning
Ignition
15 Display
16 Body Control
Module 5
17 Auxiliary
Power Rear
18 Instrument Panel
Cluster Ignition
19 Personal Device
Interface Module
20 Body Control
Module 6
21 Special Equipment
Order Retained
Accessory Power Mini Fuses Usage
22 Sensing and
Diagnostic Module
Ignition
23 Spare
24 Spare
25 Transmission Gear
Shift Position
Indicator
26 Spare
27 Spare
28 Spare
30 Body Control
Module 3
31 Amplifier
32 Discrete Logic
Ignition Switch
33 Communications
Integration Module
34 Body Control
Module 2
Page 318 of 428

Black plate (44,1)GMC Terrain Owner Manual (Include Mex) - 2012
10-44 Vehicle Care
Mini Fuses Usage35 Sensing and
Diagnostic Module
Battery
36 Data Link
Connection
37 Instrument Panel
Cluster Battery
38 Passenger Sensing
System Module
39 Spare
J‐Case Fuses Usage
29 Front Blower Motor
40 Body Control
Module 8
Relays Usage 41 Logistic Relay (If
Equipped)
42 Retained Accessory
Power RelayWheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{WARNING
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a result
of too much flexing. There
could be a blowout and a
serious crash. See
Vehicle
Load Limits on page 9‑16.
.Underinflated tires pose the
same danger as overloaded
tires. The resulting crash
could cause serious injury.
Check all tires frequently to
maintain the recommended
pressure. Tire pressure
should be checked when the
tires are cold.
(Continued)
Page 322 of 428

Black plate (48,1)GMC Terrain Owner Manual (Include Mex) - 2012
10-48 Vehicle Care
(C) Aspect Ratio:A two‐digit
number that indicates the tire
height‐to‐width measurements.
For example, if the tire size
aspect ratio is 60, as shown in
item C of the illustration, it would
mean that the tire's sidewall is
60 percent as high as it is wide.
(D) Construction Code
:A
letter code is used to indicate
the type of ply construction in
the tire. The letter R means
radial ply construction; the
letter D means diagonal or bias
ply construction; and the letter B
means belted‐bias ply
construction.
(E) Rim Diameter
:Diameter of
the wheel in inches. (F) Service Description
:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning. Aspect Ratio
:The relationship
of a tire's height to its width.
Belt
:A rubber coated layer of
cords that is located between
the plies and the tread. Cords
may be made from steel or other
reinforcing materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
on page 10‑51.