power steering GMC TERRAIN 2012 User Guide

Black plate (21,1)GMC Terrain Owner Manual (Include Mex) - 2012
Driving and Operating 9-21
.Between the first 1 000 km
(600 mi) and 5 000 km
(3,000 mi), heavy
acceleration in lower gears
can be used. Vehicle speeds
above 110 km/h (68 mph)
should be limited to
five minutes per use.
.Avoid making hard stops for
the first 322 km (200 mi) or
so. During this time the new
brake linings are not yet
broken in. Hard stops with
new linings can mean
premature wear and earlier
replacement. Follow this
breaking-in guideline every
time you get new brake
linings.
.Do not tow a trailer during
break-in. SeeDriving
Characteristics and Towing
Tips on page 9‑57 for the
trailer towing capabilities of
your vehicle and more
information. Following break‐in, engine speed
and load can be gradually
increased.
Ignition Positions
The ignition switch has four different
positions.
Notice:
Using a tool to force the
key to turn in the ignition could
cause damage to the switch or
break the key. Use the correct
key, make sure it is all the way in, and turn it only with your hand.
If the key cannot be turned by
hand, see your dealer.
The key must be fully extended to
start the vehicle.
To shift out of P (Park), turn the
ignition to ON/RUN and apply the
brake pedal.
A (STOPPING THE ENGINE/
LOCK/OFF):
When the vehicle is
stopped, turn the ignition switch to
LOCK/OFF to turn the engine off.
Retained Accessory Power (RAP)
will remain active. See Retained
Accessory Power (RAP) on
page 9‑25.
This is the only position from which
the key can be removed. This locks
the steering wheel, ignition and
automatic transmission.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.

Black plate (22,1)GMC Terrain Owner Manual (Include Mex) - 2012
9-22 Driving and Operating
If the vehicle must be shut off in an
emergency:
1. Brake using a firm and steadypressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to a
safe location.
3. Come to a complete stop, shift to P (Park), and turn the ignition
to LOCK/OFF. On vehicles with
an automatic transmission, the
shift lever must be in P (Park) to
turn the ignition switch to the
LOCK/OFF position.
4. Set the parking brake. See Parking Brake on page 9‑33.{WARNING
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
turn the ignition to ACC/
ACCESSORY.
The ignition switch can bind in the
LOCK/OFF position with the wheels
turned off center. If this happens,
move the steering wheel from right
to left while turning the key to ACC/
ACCESSORY. If this does not work,
then the vehicle needs service.
B (ACC/ACCESSORY): This
position provides power to some of
the electrical accessories. It unlocks
the steering wheel and ignition. To
move the key from ACC/ ACCESSORY to LOCK/OFF, push
in the key and then turn it to
LOCK/OFF.
C (ON/RUN):
The ignition switch
stays in this position when the
engine is running. This position can
be used to operate the electrical
accessories, including the
ventilation fan and 12‐volt power
outlets, as well as to display some
warning and indicator lights. This
position can also be used for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. The transmission is also
unlocked in this position on
automatic transmission vehicles.
The battery could be drained if the
key is left in the ACC/ACCESSORY
or ON/RUN position with the engine
off. The vehicle might not start if the
battery is allowed to drain for an
extended period of time.

Black plate (1,1)GMC Terrain Owner Manual (Include Mex) - 2012
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-3
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Cover . . . . . . . . . . . . . . . . 10-9
Engine Oil . . . . . . . . . . . . . . . . . . 10-10
Engine Oil Life System . . . . . 10-12
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-13
Engine Air Cleaner/Filter . . . . 10-14
Cooling System . . . . . . . . . . . . 10-15
Engine Coolant . . . . . . . . . . . . . 10-17
Engine Overheating . . . . . . . . 10-20
Power Steering Fluid (2.4L L4 Engine) . . . . . . . . . . . . . . . . 10-22 Power Steering Fluid (3.0L
V6 Engine) . . . . . . . . . . . . . . . . 10-22
Washer Fluid . . . . . . . . . . . . . . . 10-23
Brakes . . . . . . . . . . . . . . . . . . . . . 10-23
Brake Fluid . . . . . . . . . . . . . . . . . 10-24
Battery . . . . . . . . . . . . . . . . . . . . . 10-26
All-Wheel Drive . . . . . . . . . . . . . 10-26
Starter Switch Check . . . . . . . 10-27
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-27
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-28
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-28
Wiper Blade Replacement . . . . . . . . . . . . . . 10-28
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-30
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-32
Headlamps, Front TurnSignal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-32
Fog Lamps . . . . . . . . . . . . . . . . . 10-33 Taillamps, Turn Signal,
Sidemarker, Stoplamps,
and Back-Up Lamps . . . . . . 10-34
License Plate Lamp . . . . . . . . 10-36
Replacement Bulbs . . . . . . . . . 10-37
Electrical System
Fuses . . . . . . . . . . . . . . . . . . . . . . 10-38
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-38
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-42
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-44
Tire Sidewall Labeling . . . . . . 10-45
Tire Designations . . . . . . . . . . . 10-47
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-48
Tire Pressure . . . . . . . . . . . . . . . 10-51
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-52
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-54
Tire Inspection . . . . . . . . . . . . . . 10-57
Tire Rotation . . . . . . . . . . . . . . . 10-57
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-58
Buying New Tires . . . . . . . . . . . 10-59

Black plate (9,1)GMC Terrain Owner Manual (Include Mex) - 2012
Vehicle Care 10-9
A.Engine Air Cleaner/Filter on
page 10‑14.
B. Power Steering Fluid Reservoir (Under Engine Cover). See
Power Steering Fluid (2.4L L4
Engine) on page 10‑22 or
Power Steering Fluid (3.0L
V6 Engine) on page 10‑22.
C. Engine Oil Fill Cap. See Engine
Oil on page 10‑10.
D. Engine Cover on page 10‑9.
E. Engine Oil Dipstick (Out of View). See Engine Oil on
page 10‑10.
F. Brake Fluid Reservoir. See Brakes on page 10‑23. G.
Engine Compartment Fuse
Block on page 10‑38.
H. Remote Positive (+) Terminal. See Jump Starting on
page 10‑76.
I. Remote Negative (−) Terminal. See Jump Starting on
page 10‑76.
J. Battery on page 10‑26 (Out
of View).
K. Engine Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10‑17.
L. Windshield Washer Fluid Reservoir. See Washer Fluid on
page 10‑23.Engine Cover
Engine Cover 3.0L V6
A. Oil Fill Cap
B. Engine Cover Bolt
C. Engine Cover
To remove:
1. Remove the oil fill cap (A).
2. Remove the engine cover bolt (B).
3. Raise the engine cover (C) to release from the retainers.

Black plate (22,1)GMC Terrain Owner Manual (Include Mex) - 2012
10-22 Vehicle Care
Power Steering Fluid
(2.4L L4 Engine)
The vehicle has electric power
steering and does not use power
steering fluid.
Power Steering Fluid
(3.0L V6 Engine)
The power steering fluid reservoir is
located toward the rear of the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment Overview on
page 10‑6for reservoir location.
When to Check Power Steering
Fluid
The power steering fluid does not
need to be checked unless there is
a leak in the system or you hear an
unusual noise. Have the system
inspected and repaired if there is a
fluid loss.
How to Check Power Steering
Fluid
Notice:Extremely small amounts
of contamination can cause
steering system damage and
cause it to not work properly. Do
not allow contaminants to contact
the fluid side of the reservoir cap/
dipstick or from entering the
reservoir.
To check the power steering fluid:
1. Turn the engine off and let it cool down.
2. Remove the engine cover. Refer toEngine Cover on page 10‑9. 3. Wipe the cap and the top of the
reservoir clean.
4. Unscrew the cap and wipe the dipstick with a clean rag.
5. Replace the cap and completely tighten it.
6. Remove the cap again and look at the fluid level on the dipstick.
The fluid level should be between
MAX and MIN line at room
temperature. If the fluid is on or
below MIN line, add fluid.
What to Use
To determine what kind of fluid to
use, refer to Recommended Fluids
and Lubricants on page 11‑12.
Always use the proper fluid.
Notice: Use of the incorrect fluid
may damage the vehicle and the
damages may not be covered by
the vehicle's warranty. Always
use the correct fluid listed in
Recommended Fluids and
Lubricants on page 11‑12.

Black plate (41,1)GMC Terrain Owner Manual (Include Mex) - 2012
Vehicle Care 10-41
Mini Fuses Usage51 Heated Seat –Front
52 Chassis Control
Module
53 Engine Control
Module
54 Rear Vision Camera
Midi Fuse Usage 55 Electric Power
Steering Micro
Relays Usage
56 AIR Pump Solenoid
57 Brake Booster
58 Cooling Fan Low
59 Headlamp
High Beam
60 Cooling Fan Control
61 Wiper On/Off
Control
62 Air Conditioning
Compressor
63 Rear Defogger
64 Wiper Speed
65 Fog Lamp
66 Engine Control
67 Starter
68 Run/Crank Mini Relays Usage
69 Cooling Fan High
70 AIR Pump Motor

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

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.

Black plate (85,1)GMC Terrain Owner Manual (Include Mex) - 2012
Vehicle Care 10-85
Wheels and Trim—Aluminum
or Chrome
Use a soft, clean cloth with mild
soap and water to clean the wheels.
After rinsing thoroughly with clean
water, dry with a soft, clean towel.
A wax may then be applied.
Keep the wheels clean using a soft,
clean cloth with mild soap and
water. Rinse with clean water. After
rinsing thoroughly, dry with a soft,
clean towel. A wax may then be
applied.
Notice: Chrome wheels and other
chrome trim may be damaged if
the vehicle is not washed after
driving on roads that have been
sprayed with magnesium,
calcium, or sodium chloride.
These chlorides are used on
roads for conditions such as ice
and dust. Always wash the
chrome with soap and water after
exposure. Notice:
To avoid surface damage,
do not use strong soaps,
chemicals, abrasive polishes,
cleaners, brushes, or cleaners
that contain acid on aluminum or
chrome-plated wheels. Use only
approved cleaners. Also, never
drive a vehicle with aluminum or
chrome-plated wheels through an
automatic car wash that uses
silicone carbide tire cleaning
brushes. Damage could occur
and the repairs would not be
covered by the vehicle warranty.
Steering, Suspension, and
Chassis Components
Visually inspect front and rear
suspension and steering system for
damaged, loose, or missing parts or
signs of wear. Inspect power
steering lines and hoses for proper
hook-up, binding, leaks, cracks,
chafing, etc. Visually check constant
velocity joints, rubber boots, and
axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
steel fuel door hinge unless the
components are plastic. Applying
silicone grease on weatherstrips
with a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance
Use plain water to flush dirt and
debris from the vehicle's underbody.
Your dealer or an underbody car
washing system can do this. If not
removed, rust and corrosion can
develop.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.

Black plate (12,1)GMC Terrain Owner Manual (Include Mex) - 2012
11-12 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Use only engine oil licensed to the dexos1 specfication, or equivalent, of
the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is
recommended. See
Engine Oil on page 10‑10.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See
Engine Coolant on page 10‑17.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 88862806, in
Canada 88862807).
Windshield Washer Optikleen
®Washer Solvent.
Hydraulic Power Steering System (V6 engines only) DEXRON
®-VI Automatic Transmission Fluid.
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Transfer Case (All-Wheel Drive) Transfer Case Fluid (GM Part No. 88861950, in Canada 88861951).
Key Lock Cylinders Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).