2010 GMC ACADIA tire pressure

5-42 Instruments and Controls
Driver Information Center (DIC)
(Without DIC Buttons)on
page 5‑28.
SERVICE TIRE MONITOR
SYSTEM
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
TPMS is not working properly. The
tire pressure light also flashes and
then remains on during the same
ignition cycle. See Tire Pressure
Light
on page 5‑21. Several
conditions may cause this message
to appear. See Tire Pressure
Monitor Operation
on page 10‑45for
more information. If the warning
comes on and stays on, there may
be a problem with the TPMS. See
your dealer/retailer.
TIRE LEARNING ACTIVE
This message displays when the
Tire Pressure Monitor System
(TPMS) is re-learning the tire
positions on your vehicle. The tire positions must be re-learned after
rotating the tires or after replacing a
tire or sensor. See
Tire Rotation
on
page 10‑49, Tire Pressure Monitor
Systemon page 10‑44, and Tire
Pressureon page 10‑43for more
information.
Transmission Messages
ALL WHEEL DRIVE OFF
If your vehicle has the All-Wheel
Drive (AWD) system, this message
displays when there is a compact
spare tire on the vehicle, when the
Antilock Brake System (ABS)
warning light comes on, or when the
rear differential fluid is overheating.
This message turns off when the
differential fluid cools.
The AWD system is disabled until
the compact spare tire is replaced
by a full-size tire. If the warning
message is still on after putting on
the full-size tire, you need to reset
the warning message. To reset the warning message, turn the ignition
off and then back on again after
30 seconds. If the message stays
on, see your dealer/retailer right
away. See
All-Wheel Drive
on
page 9‑25for more information.
SERVICE ALL WHEEL DRIVE
If your vehicle has the All-Wheel
Drive (AWD) system, this message
displays if there is a problem with
this system. If this message
appears, stop as soon as possible
and turn off the vehicle. Restart the
vehicle after 30 seconds and check
for the message on the DIC display.
If the message is still displayed or
appears again when you begin
driving, the AWD system needs
service. See your dealer/retailer.
SERVICE TRANSMISSION
This message displays when there
is a problem with the transmission.
See your dealer/retailer for service.

Driving and Operating 9-11
{WARNING
Do not load the vehicle any
heavier than the Gross
Vehicle Weight Rating
(GVWR), or either the
maximum front or rear Gross
Axle Weight Rating (GAWR).
If you do, parts on the vehicle
can break, and it can change
the way your vehicle handles.
These could cause you to lose
control and crash. Also,
overloading can shorten the
life of the vehicle.Tire and Loading Information
Label
Example Label
A vehicle specific Tire and
Loading Information label is
attached to the center pillar
(B-pillar) of your vehicle. With
the driver's door open, you will
find the label attached below the
door lock post (striker). The tire
and loading information label
shows the number of occupant seating positions (A), and the
maximum vehicle capacity
weight (B) in kilograms and
pounds.
The Tire and Loading
Information label also shows the
size of the original equipment
tires (C) and the recommended
cold tire inflation pressures (D).
For more information on tires
and inflation see
Tires
on
page 10‑37
and Tire Pressureon
page 10‑43
.
There is also important loading
information on the vehicle
Certification/Tire label. It tells
you the Gross Vehicle Weight
Rating (GVWR) and the Gross
Axle Weight Rating (GAWR) for
the front and rear axle. See
“Certification/Tire Label” later in
this section.

10-2 Vehicle Care
Fuses and CircuitBreakers . . . . . . . . . . . . . . . . . . 10-31
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-31
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-34
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-37
Tire Sidewall Labeling . . . . . . 10-37
Tire Designations . . . . . . . . . . . 10-39
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-40
Tire Pressure . . . . . . . . . . . . . . . 10-43
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-44
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . 10-45 Tire Inspection . . . . . . . . . . . . . . 10-49
Tire Rotation . . . . . . . . . . . . . . . 10-49
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . 10-50
Buying New Tires . . . . . . . . . . . 10-51
Different Size Tires and
Wheels . . . . . . . . . . . . . . . . . . . 10-53
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-53
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-55
Wheel Replacement . . . . . . . . 10-55
Tire Chains . . . . . . . . . . . . . . . . . 10-56
If a Tire Goes Flat . . . . . . . . . . 10-56
Tire Sealant and Compressor Kit . . . . . . . . . . . 10-58
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . 10-65 Tire Changing . . . . . . . . . . . . . . 10-66
Secondary Latch System . . . 10-74
Compact Spare Tire . . . . . . . . 10-77
Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-78
Towing
Towing the Vehicle . . . . . . . . . 10-82
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . 10-82
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-85
Interior Care . . . . . . . . . . . . . . . . 10-88
Floor Mats . . . . . . . . . . . . . . . . . . 10-91

Vehicle Care 10-37
Wheels and Tires
Tires
Your new vehicle comes with
high-quality tires made by a
leading tire manufacturer. If you
ever have questions about your
tire warranty and where to
obtain service, see your vehicle
Warranty booklet for details. For
additional information refer to
the tire manufacturer.
{WARNING
Poorly maintained and improperly
used tires are dangerous.
.Overloading your tires can
cause overheating as a result
of too much flexing. You
could have an air-out and a
serious accident. SeeVehicle
Load Limits on page 9‑10.
(Continued)
WARNING (Continued)
.Underinflated tires pose the
same danger as overloaded
tires. The resulting accident
could cause serious injury.
Check all tires frequently to
maintain the recommended
pressure. Tire pressure
should be checked when your
tires are cold. See Tire
Pressure on page 10‑43.
.Overinflated tires are more
likely to be cut, punctured or
broken by a sudden
impact —such as when you
hit a pothole. Keep tires at
the recommended pressure.
.Worn, old tires can cause
accidents. If your tread is
badly worn, or if your tires
have been damaged,
replace them.
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.
Passenger (P-Metric) Tire Example
(A) Tire Size:The tire size is a
combination of letters and
numbers used to define a
particular tire's width, height,
aspect ratio, construction type,

10-38 Vehicle Care
and service description. See the
“Tire Size”illustration later in this
section for more detail.
(B) TPC Spec (Tire
Performance Criteria
Specification)
:Original
equipment tires designed to
GM's specific tire performance
criteria have a TPC specification
code molded onto the sidewall.
GM's TPC specifications 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 Identification Number
(TIN)
:The letters and numbers
following the DOT (Department
of Transportation) code is the Tire Identification 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
see Uniform Tire Quality
Grading
on page 10‑53.
(G) Maximum Cold Inflation
Load Limit
:Maximum load that
can be carried and the
maximum pressure needed to
support that load.
Compact Spare Tire Example
(A) Tire Ply Material:The type
of cord and number of plies in
the sidewall and under the tread.
(B) Temporary Use Only
:The
compact spare tire or temporary
use tire has a tread life of
approximately 5 000 km
(3,000 miles) and should not be
driven at speeds over 105 km/h
(65 mph). The compact spare
tire is for emergency use when a
regular road tire has lost air and
gone flat. If your vehicle has a

Vehicle Care 10-39
compact spare tire, see
Compact Spare Tire
on
page 10‑77
and If a Tire Goes
Flat
on page 10‑56.
(C) Tire Identification Number
(TIN)
:The letters and numbers
following the DOT (Department
of Transportation) code is the
Tire Identification 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 Inflation
Load Limit
:Maximum load that
can be carried and the
maximum pressure needed to
support that load. (E) Tire Inflation
:The
temporary use tire or compact
spare tire should be inflated to
420 kPa (60 psi). For more
information on tire pressure and
inflation see Tire Pressure
on
page 10‑43
.
(F) Tire Size
:A combination of
letters and numbers define a
tire's width, height, aspect ratio,
construction type, and service
description. The letter T as the
first character in the tire size
means the tire is for temporary
use only.
(G) TPC Spec (Tire
Performance Criteria
Specification)
:Original
equipment tires designed to
GM's specific tire performance
criteria have a TPC specification
code molded onto the sidewall.
GM's TPC specifications meet or
exceed all federal safety
guidelines.
Tire Designations
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 first 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.

10-40 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 carry 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 psi (pounds per
square inch) or kPa (kilopascal).
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.
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 psi (pounds per
square inch) or kPa (kilopascal)
before a tire has built up heat
from driving. See Tire Pressure
on page 10‑43.

Vehicle Care 10-41
Curb Weight:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) motor vehicle safety
standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
on page 9‑10. GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits
on
page 9‑10
.
GAWR RR
:Gross Axle Weight
Rating for the rear axle. See
Vehicle Load Limits
on
page 9‑10
.
Intended Outboard Sidewall
:
The side of an asymmetrical tire,
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric
unit for air pressure.
Light Truck (LT-Metric) Tire
:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire. Maximum Inflation Pressure
:
The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall.
Maximum Load Rating
:The
load rating for a tire at the
maximum permissible inflation
pressure for that tire.
Maximum Loaded Vehicle
Weight
:The sum of curb
weight, accessory weight,
vehicle capacity weight, and
production options weight.
Normal Occupant Weight
:The
number of occupants a vehicle
is designed to seat multiplied by
68 kg (150 lbs). See Vehicle
Load Limits
on page 9‑10.
Occupant Distribution
:
Designated seating positions.