2009 CHEVROLET TRAIL BLAZER tire pressure

Tire and Loading Information Label
A vehicle specic Tire and Loading Information
label is attached to the center pillar (B-pillar).
With the driver’s door open, you will nd 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 ination pressures (D). For
more information on tires and ination seeTires on
page 5-58andInflation - Tire Pressure on
page 5-65.
There is also important loading information on the
vehicle Certication/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 “Certication/Tire Label” later in this section.
Label Example
4-34

Certication/Tire Label
A vehicle specic Certication/Tire label is found
on the rear edge of the driver’s door. The label
shows the size of your vehicle’s original tires and
the ination pressures needed to obtain the gross
weight capacity of your vehicle. This is called
Gross Vehicle Weight Rating (GVWR). The GVWR
includes the weight of the vehicle, all occupants,
fuel, cargo, and trailer tongue weight, if pulling a
trailer.
The Certication/Tire label also tells you the
maximum weights for the front and rear axles,
called Gross Axle Weight Rating (GAWR).To nd out the actual loads on your front and rear
axles, you need to go to a weigh station and weigh
your vehicle. Your dealer can help you with this.
Be sure to spread out your load equally on both
sides of the centerline.
Never exceed the GVWR for your vehicle, or the
GAWR for either the front or rear axle.
And, if you do have a heavy load, you should
spread it out.
Similar appearing vehicles may have different
GVWRs and capacity weights. Please note your
vehicle’s Certication/Tire label or consult your
dealer for additional details.
{CAUTION:
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.
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Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
the Vehicle.................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-6
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-7
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-18
Engine Oil Life System..................................5-22
Engine Air Cleaner/Filter................................5-24
Automatic Transmission Fluid.........................5-25
Cooling System............................................5-28
Engine Coolant.............................................5-29
Radiator Pressure Cap..................................5-34
Engine Overheating.......................................5-35Engine Fan Noise.........................................5-36
Power Steering Fluid.....................................5-37
Windshield Washer Fluid................................5-38
Brakes........................................................5-39
Battery........................................................5-42
Jump Starting...............................................5-43
All-Wheel Drive..............................................5-48
Rear Axle.......................................................5-49
Four-Wheel Drive
............................................5-50
Front Axle......................................................5-51
Headlamp Aiming...........................................5-52
Bulb Replacement..........................................5-52
Halogen Bulbs..............................................5-52
Taillamps and Turn Signal Lamps...................5-53
License Plate Lamp......................................5-54
Replacement Bulbs.......................................5-54
Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-58
Winter Tires.................................................5-59
Tire Sidewall Labeling...................................5-60
Tire Terminology and Denitions.....................5-62
Ination - Tire Pressure.................................5-65
High-Speed Operation...................................5-66
Tire Pressure Monitor System.........................5-67
Section 5 Service and Appearance Care
5-1

Tire Pressure Monitor Operation.....................5-69
Tire Inspection and Rotation...........................5-73
When It Is Time for New Tires.......................5-74
Buying New Tires.........................................5-75
Different Size Tires and Wheels......................5-77
Uniform Tire Quality Grading..........................5-78
Wheel Alignment and Tire Balance..................5-80
Wheel Replacement......................................5-80
Tire Chains..................................................5-81
If a Tire Goes Flat........................................5-82
Tire Sealant and Compressor Kit....................5-83
Tire Sealant and Compressor Kit Storage.........5-92
Changing a Flat Tire.....................................5-93
Removing the Spare Tire and Tools................5-94
Removing the Flat Tire and Installing the
Spare Tire................................................5-97
Secondary Latch System..............................5-103
Storing a Flat or Spare Tire and Tools...........5-106
Spare Tire.................................................5-109
Appearance Care..........................................5-109
Interior Cleaning.........................................5-109
Fabric/Carpet..............................................5-111
Leather......................................................5-111
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-112Care of Safety Belts....................................5-112
Weatherstrips.............................................5-112
Washing Your Vehicle..................................5-113
Cleaning Exterior Lamps/Lenses....................5-113
Finish Care................................................5-114
Windshield, Backglass, and Wiper Blades.......5-114
Aluminum Wheels.......................................5-115
Tires.........................................................5-115
Sheet Metal Damage...................................5-116
Finish Damage...........................................5-116
Underbody Maintenance...............................5-116
Chemical Paint Spotting...............................5-116
Vehicle Identication.....................................5-117
Vehicle Identication Number (VIN)................5-117
Service Parts Identication Label...................5-117
Electrical System..........................................5-118
Add-On Electrical Equipment.........................5-118
Headlamps.................................................5-118
Windshield Wiper Fuses...............................5-118
Power Windows and Other Power Options......5-118
Fuses and Circuit Breakers..........................5-119
Engine Compartment Fuse Block...................5-119
Rear Underseat Fuse Block..........................5-122
Capacities and Specications........................5-125
Section 5 Service and Appearance Care
5-2

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.
{CAUTION:
Poorly maintained and improperly used
tires are dangerous.
Overloading your tires can cause
overheating as a result of too much
exing. You could have an air-out and
a serious accident. SeeLoading the
Vehicle on page 4-33.
CAUTION: (Continued)
CAUTION: (Continued)

Underinated 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
Inflation - Tire Pressure on page 5-65.
Overinated 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.
SeeHigh-Speed Operation on page 5-66for
ination pressure adjustment for high speed
driving.
5-58

Low-Prole Performance Tire
If your vehicle has P255/50R20 size tires, they are
classied as low-prole performance tires. These
tires are designed for very responsive driving on
wet or dry pavement. You may also notice more
road noise with low-prole performance tires and
that they tend to wear faster.
Notice:If the vehicle has low-prole tires,
they are more susceptible to damage from road
hazards or curb impact than standard prole
tires. Tire and/or wheel assembly damage can
occur when coming into contact with road
hazards like, potholes, or sharp edged objects,
or when sliding into a curb. The vehicle
warranty does not cover this type of damage.
Keep tires set to the correct ination pressure
and, when possible avoid contact with curbs,
potholes, and other road hazards.
Winter Tires
For cold weather driving conditions you may prefer to
get tires designed for snow or ice, if your vehicle has
P255/50R20 size tires. See your dealer for details
regarding winter tire availability and proper tire
selection. Also, seeBuying New Tires on page 5-75.
If you choose to use winter tires:
Use tires of the same brand and tread type on all
four wheel positions.
Use only radial ply tires of the same size, load
range, and speed rating as your original equipment
tires.
Winter tires with the same speed rating as your original
equipment tires may not be available for H, V, W, Y
and ZR speed rated tires. If you choose winter tires with
a lower speed rating, never exceed the tire’s maximum
speed capability.
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(G) Maximum Cold Ination Load Limit:Maximum load that can be carried and the
maximum pressure needed to support that load.
For information on recommended tire pressure
seeInflation - Tire Pressure on page 5-65
andLoading the Vehicle on page 4-33.
Tire Size
The following examples show the different parts of
a 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 75, as
shown in item C of the passenger (P-Metric) tire
illustration, it would mean that the tire’s sidewall
is 75 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
:The service description
indicates the load range and speed rating of a
tire. The load index can range from 1 to 279.
Speed ratings range from A to Z.Passenger (P-Metric) Tire
5-61

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.
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 pounds per square inch (psi)
or kilopascals (kPa) before a tire has built up heat
from driving. SeeInflation - Tire Pressure on
page 5-65.
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 Identication Number (TIN), an
alphanumeric designator which can also identify the
tire manufacturer, production plant, brand, and date
of production.
GVWR
:Gross Vehicle Weight Rating.
SeeLoading the Vehicle on page 4-33.
GAWR FRT
:Gross Axle Weight Rating for the
front axle. SeeLoading the Vehicle on page 4-33.
GAWR RR
:Gross Axle Weight Rating for the
rear axle. SeeLoading the Vehicle on page 4-33.
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