height GMC ACADIA 2009 User Guide

Some driving conditions or climates
can cause a brake squeal when the
brakes are rst 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
specications inCapacities and
Specifications on page 5-96.
Brake linings should always be
replaced as complete axle sets.Brake Pedal Travel
See your dealer/retailer 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 designedand tested with top-quality brake
parts. When parts of the braking
system are replaced — for example,
when the brake linings wear down
and new ones are installed — be
sure to get new approved
replacement parts. If this is not
done, the brakes might not work
properly. For example, if someone
puts in brake linings that are wrong
for the vehicle, the balance between
the front and rear brakes can
change — for the worse. The braking
performance expected can change
in many other ways if the wrong
replacement brake parts are
installed.
Service and Appearance Care 5-27

Tire Sidewall Labeling
Useful information about a tire
is molded into its sidewall. The
examples below show a typical
passenger vehicle tire and a
compact spare tire sidewall.
(A) Tire Size
:The tire size
is a combination of letters and
numbers used to dene aparticular tire’s width, height,
aspect ratio, construction type,
and service description. See the
“Tire Size” illustration later in this
section for more detail.
(B) TPC Spec (Tire
Performance Criteria
Specication)
:Original
equipment tires designed to
GM’s specic tire performance
criteria have a TPC specication
code molded onto the sidewall.
GM’s TPC specications meet
or exceed all federal safety
guidelines.
(C) DOT (Department
of Transportation)
:The
Department of Transportation
(DOT) code indicates that the tire
is in compliance with the U.S.
Department of Transportation
Motor Vehicle Safety Standards.(D) Tire Identication Number
(TIN)
:The letters and numbers
following DOT (Department
of Transportation) code is the
Tire Identication Number (TIN).
The TIN shows the manufacturer
and plant code, tire size, and
date the tire was manufactured.
The TIN is molded onto both
sides of the tire, although
only one side may have the
date of manufacture.
(E) Tire Ply Material
:The type
of cord and number of plies
in the sidewall and under
the tread.
(F) Uniform Tire Quality
Grading (UTQG)
:Tire
manufacturers are required
to grade tires based on three
performance factors: treadwear,
traction, and temperature
resistance. For more information
seeUniform Tire Quality Grading
on page 5-51. Passenger (P-Metric) Tire
Example
5-36 Service and Appearance Care

(G) Maximum Cold Ination
Load Limit:Maximum load that
can be carried and the maximum
pressure needed to support
that load.
(A) Temporary Use Only
:The
compact spare tire or temporary
use tire has a tread life of
approximately 3,000 miles
(5 000 km) and should not be
driven at speeds over 65 mph
(105 km/h). The compact spare
tire is for emergency use when aregular road tire has lost air and
gone at. If your vehicle has a
compact spare tire, seeCompact
Spare Tire on page 5-81andIf a
Tire Goes Flat on page 5-55.
(B) Tire Ply Material
:The type
of cord and number of plies in the
sidewall and under the tread.
(C) Tire Identication Number
(TIN)
:The letters and numbers
following the DOT (Department
of Transportation) code is the
Tire Identication Number (TIN).
The TIN shows the manufacturer
and plant code, tire size, and
date the tire was manufactured.
The TIN is molded onto both
sides of the tire, although only
one side may have the date of
manufacture.
(D) Maximum Cold Ination
Load Limit
:Maximum load
that can be carried and
the maximum pressure needed
to support that load.(E) Tire Ination
:The
temporary use tire or compact
spare tire should be inated
to 60 psi (420 kPa). For
more information on tire
pressure and ination see
Inflation - Tire Pressure on
page 5-41.
(F) Tire Size
:A combination
of letters and numbers dene a
tire’s width, height, aspect ratio,
construction type, and service
description. The letter T as the
rst character in the tire size
means the tire is for temporary
use only.
(G) TPC Spec (Tire
Performance Criteria
Specication)
:Original
equipment tires designed to
GM’s specic tire performance
criteria have a TPC specication
code molded onto the sidewall.
GM’s TPC specications
meet or exceed all federal
safety guidelines. Compact Spare Tire Example
Service and Appearance Care 5-37

Tire Size
The following illustration shows
an example of a typical
passenger vehicle tire size.
(A) Passenger (P-Metric) Tire
:The United States version of
a metric tire sizing system. The
letter P as the rst character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire
and Rim Association.
(B) Tire Width
:The three-digit
number indicates the tire
section width in millimeters
from sidewall to sidewall.
(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
range and speed rating of the
tire. The load index represents
the load carry capacity a tire is
certied to carry. The load index
can range from 1 to 279. The
speed rating is the maximum
speed a tire is certied to carry
a load. Speed ratings range
fromAtoZ.
Tire Terminology and
Denitions
Air Pressure:The amount
of air inside the tire pressing
outward on each square inch
of the tire. Air pressure is
expressed in pounds per square
inch (psi) or kilopascal (kPa).
Accessory Weight
:This
means 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.
5-38 Service and Appearance Care

Wheel Alignment and
Tire Balance
The tires and wheels on your vehicle
were aligned and balanced carefully
at the factory to give you the longest
tire life and best overall performance.
Adjustments to wheel alignment and
tire balancing will not be necessary
on a regular basis. However, if you
notice unusual tire wear or your
vehicle pulling to one side or the
other, the alignment might need to be
checked. If you notice your vehicle
vibrating when driving on a smooth
road, the tires and wheels might
need to be rebalanced. See your
dealer/retailer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts, and wheel nuts
should be replaced. If the wheel
leaks air, replace it (except some
aluminum wheels, which can
sometimes be repaired). See your
dealer/retailer if any of these
conditions exist.
Your dealer/retailer will know the
kind of wheel you need.
Each new wheel should have the
same load-carrying capacity,
diameter, width, offset, and be
mounted the same way as the
one it replaces.
If you need to replace any of your
wheels, wheel bolts, wheel nuts,
or Tire Pressure Monitor System
(TPMS) sensors, replace them only
with new GM original equipment
parts. This way, you will be sure to
have the right wheel, wheel bolts,
wheel nuts, and TPMS sensors for
your vehicle.{CAUTION
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts on your vehicle can be
dangerous. It could affect the
braking and handling of your
vehicle, make your tires lose air
and make you lose control. You
could have a collision in which
you or others could be injured.
Always use the correct wheel,
wheel bolts, and wheel nuts for
replacement.
Notice:The wrong wheel can
also cause problems with bearing
life, brake cooling, speedometer
or odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
SeeChanging a Flat Tire on
page 5-69for more information.
Service and Appearance Care 5-53

Doing Your Own
Service Work..................... 5-4
Dome Lamp Override...........3-14
Dome Lamps .......................3-14
Door
Delayed Locking................. 2-8
Locks............................... 2-8
Power Door Locks.............. 2-8
Programmable Automatic
Door Locks.................... 2-9
Rear Door Security Locks.... 2-9
Driver
Seat Height Adjuster........... 1-3
Driver Information
Center (DIC)....................3-46
DIC Operation
and Displays........3-46, 3-51
DIC Vehicle
Customization...............3-64
DIC Warnings and
Messages....................3-56
Driving
At Night..........................4-10
Before a Long Trip............4-12
Defensive.......................... 4-2
Drunken............................ 4-2
Highway Hypnosis............4-12
Hill and Mountain Roads....4-12Driving (cont.)
In Rain and on
Wet Roads...................4-11
Rocking Your Vehicle to
Get it Out ....................4-15
Winter.............................4-13
Driving for Better Fuel
Economy........................... 4-1
Dual Automatic Climate
Control System.................3-25
DVD
Rear Seat Entertainment
System......................3-109
E
EDR ..................................7-16
Electrical System
Add-On Equipment............5-89
Fuses and Circuit
Breakers......................5-90
Instrument Panel
Fuse Block...................5-90
Power Windows and Other
Power Options..............5-90
Underhood Fuse Block......5-92
Windshield Wiper Fuses....5-90
Electronic Immobilizer
PASS-Key
®III+................2-17Electronic Immobilizer
Operation
PASS-Key
®III+................2-18
Engine
Air Cleaner/Filter...............5-15
Check and Service Engine
Soon Lamp..................3-41
Coolant...........................5-17
Coolant Heater.................2-23
Coolant
Temperature Gage.........3-40
Coolant Temperature
Warning Light...............3-40
Drive Belt Routing.............6-15
Engine Compartment
Overview......................5-10
Exhaust...........................2-30
Oil ..................................5-11
Oil Life System.................5-13
Overheated Protection
Operating Mode............5-23
Overheating.....................5-21
Starting...........................2-22
Entry Lighting......................3-14
Event Data Recorders..........7-16
Extender, Safety Belt............1-28
Exterior Lamps....................3-11
i-4 INDEX

F
Filter
Engine Air Cleaner............5-15
Finish Damage....................5-88
Flashers, Hazard Warning....... 3-5
Flash-to-Pass........................ 3-7
Flat Tire..............................5-55
Flat Tire, Changing...............5-69
Flat Tire, Storing..................5-78
Floor Mats..........................2-50
Fluid
Automatic Transmission.....5-16
Power Steering.................5-23
Windshield Washer...........5-24
Fog Lamp
Fog ................................3-13
Fog Lamp Light...................3-44
Fuel..................................... 5-5
Additives........................... 5-5
California Fuel................... 5-5
Driving for Better Economy . . . 4-1
Filling a Portable Fuel
Container....................... 5-8
Filling the Tank.................. 5-7
Fuels in Foreign Countries . . . 5-6
Gage ..............................3-45Fuel (cont.)
Gasoline Octane................ 5-5
Gasoline Specications........ 5-5
Fuses
Fuses and Circuit
Breakers......................5-90
Instrument Panel
Fuse Block...................5-90
Underhood Fuse Block......5-92
Windshield Wiper..............5-90
G
Gage
Engine Coolant
Temperature.................3-40
Fuel................................3-45
Speedometer...................3-35
Tachometer......................3-35
Voltmeter Gage................3-38
Garage Door Opener............2-44
Gasoline
Octane............................. 5-5
Specications..................... 5-5
Glove Box...........................2-49
GM Mobility Reimbursement
Program............................ 7-5
H
Hazard Warning Flashers........ 3-5
Head Restraints..................... 1-2
Headlamp
Aiming ............................5-33
Headlamps
Bulb Replacement.............5-33
Daytime Running Lamps/
Automatic Headlamp
System........................3-13
Delayed..........................3-12
Exterior Lamps.................3-11
Flash-to-Pass..................... 3-7
Halogen Bulbs..................5-33
High/Low Beam Changer..... 3-7
Head-Up Display (HUD)........3-17
Heated Seats.................1-5, 1-6
Heater................................3-22
Engine Coolant.................2-23
Heater................................3-25
Height Adjuster, Driver Seat.... 1-3
High Voltage Devices and
Wiring.............................5-89
Highbeam On Light..............3-45
Highway Hypnosis................4-12
Hill and Mountain Roads.......4-12
INDEX i-5

Rear Seat Operation............1-10
Rear Vision Camera.............2-37
Rear Windshield
Washer/Wiper.................... 3-9
Rearview Mirror, Automatic
Dimming ..........................2-31
Rearview Mirrors..................2-31
Reclining Seatbacks............... 1-8
Recommended Fluids and
Lubricants........................6-12
Recreational Vehicle Towing . . . 4-21
Remote Keyless Entry (RKE)
System............................. 2-3
Remote Keyless Entry (RKE)
System, Operation.............. 2-3
Remote Vehicle Start............. 2-5
Removing the Flat Tire and
Installing the Spare Tire.....5-72
Removing the Spare
Tire and Tools..................5-69
Replacement Bulbs..............5-34
Replacement Parts,
Maintenance....................6-14
Reporting Safety Defects
Canadian Government.......7-14
General Motors................7-14
United States
Government..................7-14Restraint System Check
Checking the Restraint
Systems.......................1-61
Replacing Restraint System
Parts After a Crash........1-62
Retained Accessory Power....2-21
Roadside
Assistance Program............ 7-6
Rocking Your Vehicle to
Get it Out ........................4-15
Routing, Engine Drive Belt....6-15
Running the Vehicle
While Parked...................2-30
S
Safety Belt Reminders..........3-35
Safety Belts
Care of ...........................5-84
How to Wear Safety Belts
Properly.......................1-18
Lap-Shoulder Belt.............1-23
Safety Belt Extender.........1-28
Safety Belt Use During
Pregnancy....................1-28
Safety Belts Are for
Everyone.....................1-15
Safety Warnings and Symbols.... iii
Scheduled Maintenance.......... 6-3Seats
Driver Seat Height
Adjuster......................... 1-3
Heated and Cooled Seats.... 1-6
Heated Seats..................... 1-5
Manual Lumbar.................. 1-4
Memory, Mirrors................. 1-6
Power Lumbar ................... 1-5
Power Seats...................... 1-4
Rear Seat Operation.........1-10
Reclining Seatbacks............ 1-8
Third Row Seat................1-12
Second Row Center
Console..........................2-50
Secondary Latch System.......5-76
Securing a Child Restraint
Rear Seat Position............1-43
Right Front Seat Position . . . 1-45
Security Light......................3-44
Service................................ 5-3
Accessories and
Modications.................. 5-3
Adding Equipment to the
Outside of the Vehicle..... 5-4
California Perchlorate
Materials Requirements.... 5-3
California Proposition 65
Warning......................... 5-3
Doing Your Own Work........ 5-4
INDEX i-9