2007 SUZUKI FORENZA tires

4-18 DRIVING YOUR VEHICLE
85Z03-03E
Actual weight of the loaded vehicle and
actual loads at the front and rear axles can
only be determined by weighing the vehicle
using a vehicle scale. To measure the
weight and load, try taking your vehicle to
a highway weighing station, shipping com-
pany or inspection station for trucks, etc.
Compare these weights to the GVWR and
GAWR (front and rear) listed on the Safety
Certification Label. If the gross vehicle
weight or the load on either axle exceeds
these ratings, you must remove enough
weight to bring the load down to the rated
capacity.
Steps for Determining Correct Load
Limit
1) Locate the statement “The combined
weight of occupants and cargo should
never exceed XXX pounds” on your
vehicle placard.
2) Determine the combined weight of the
driver and passengers that will be riding
in your vehicle.
3) Subtract the combined weight of the
driver and passengers from XXX kilo-
grams or XXX pounds.
4) The resulting figure equals the available
amount of cargo and luggage load
capacity. For example, if the “XXX”
amounts equals 1,400 lbs and there will
be five 150 lb passengers in your vehi-
cle, the amount of available cargo and
luggage load capacity is 650 lbs (1,400
– 750 (5 x 150) = 650 lbs).5) Determine the combined weight of lug-
gage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in Step 4.
Vehicle Loading Example
As an example, suppose that the Tire and
Loading Information label on your vehicle
indicates that your vehicle’s total load
capacity is 950 lbs. If you were to drive
your vehicle with one passenger, and the
total combined weight of you and your pas-
senger was 350 lbs, then the cargo and
luggage capacity of your vehicle would be
600 lbs (950 – 350 = 600 lbs).
If you later added 2 more passengers, hav-
ing a combined weight of 325 lbs, the
cargo and luggage capacity of your vehicle
would be reduced from 600 lbs to 275 lbs
(600 – 325 = 275 lbs). As you can see, as
the number and combined weight of vehi-
cle occupants increase, the vehicle’s cargo
and luggage capacity decreases. Do not
carry more than 123 lbs (56 kg) in your
trunk.If you put things inside your vehicle – like
suitcases, tools, packages, or anything
else – they will go as fast as the vehicle
goes. If you have to stop or turn quickly, or
if there is a crash, they’ll keep going.
WARNING
Never overload your vehicle. Over-
loading your vehicle can cause dam-
age to your tires and lead to poor
steering and braking which can result
in an accident. The gross vehicle
weight (sum of the weights of the
loaded vehicle, driver and passen-
gers) must never exceed the Gross
Vehicle Weight Rating (GVWR) listed
on the Safety Certification Label. In
addition, never distribute a load so
that the weight on either the front or
rear axle exceeds the Gross Axle
Weight Rating (GAWR) listed on the
Safety Certification Label.
Towing:

4-19 DRIVING YOUR VEHICLE
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Determining Compatibility of Tire and
Vehicle Load Limits
The tires on your vehicle, when they are
inflated to the recommended tire inflation
pressure, have a load-carrying capacity
that is greater than the load that will be onthe tires when the vehicle is at its GVWR
or GAWR limit. Never use replacement
tires that have a load-carrying capacity
less than the original tires on your vehicle.
Tire load-carrying capacity information is
molded into the tire sidewall typically
shown as “Max. Load”. Use of replacement
tires with a lower load-carrying capacity
than the original tires, or failure to keep the
tires inflated to recommended tire pres-
sure, may reduce the GVWR or GAWR
limit of your vehicle.
NOTE:
Use of replacement tires with a higher
load-carrying capacity than the original
tires, or using a tire inflation pressure
higher than the recommended tire inflation
pressure, will not increase the GVWR or
GAWR limit of your vehicle.
Towing a TrailerDo not use your vehicle to tow a trailer. The
vehicle is not designed or intended for
such use. Towing a trailer can adversely
affect handling, durability and fuel econ-
omy.
WARNING
Things you put inside your vehicle
can strike and injure people in a sud-
den stop or turn, or in a crash.
 Put things in the trunk or rear area
of your vehicle. In a trunk, put them
as far forward as you can. Try to
spread the weight evenly. If you
have fold-down rear seats, you’ll
find four anchors on the back wall
of your trunk. You can use these
anchors to tie down lighter loads.
They’re not strong enough for
heavy things, however, so put them
as far forward as you can in the
trunk or rear area.
 Never stack heavier things, like
suitcases, inside the vehicle so that
some of them are above the tops of
the seats.
 Don’t leave an unsecured child
restraint in your vehicle.
 When you carry something inside
the vehicle, secure it whenever you
can.
 Don’t leave a seat folded down
unless you need to.
L3U4030A
Towing:

SERVICE AND APPEARANCE CARE
5
85Z03-03E
SERVICE AND APPEARANCE CAREService ................................................................................. 5-1
Fuel ....................................................................................... 5-1
Checking Things Under the Hood ..................................... 5-4
Headlamp Aiming ................................................................ 5-23
Bulb Replacement ............................................................... 5-23
Windshield Wiper Blade Replacement .............................. 5-28
Tires ...................................................................................... 5-28
Tire Pressure Monitoring System ...................................... 5-33
Appearance Care ................................................................. 5-45
Vehicle Identification .......................................................... 5-49
Electrical System ................................................................ 5-49
Capacities and Specifications ........................................... 5-54

5-19 SERVICE AND APPEARANCE CARE
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When your brake fluid falls to a low level,
your brake warning light will come on. See
“Brake System Warning Light” in section 3.
What to Add
When you do need brake fluid, use only
DOT-3 brake fluid. Use new brake fluid
from a sealed container only. See “Recom-
mended Fluids and Lubricants” in section
6.
Always clean the brake fluid reservoir cap
and the area around the cap before remov-
ing it. This will help keep dirt from entering
the reservoir.Brake Wear
Your vehicle has front and rear disc brakes.
Disc brake pads have built-in wear indica-
tors that make a high-pitched warning
sound when the brake pads are worn and
new pads are needed. The sound may
come and go or be heard all the time your
vehicle is moving (except when you are
pushing on the brake pedal firmly).Some driving conditions or climates may
cause a brake squeal when the brakes are
first applied or lightly applied. This does
not mean something is wrong with your
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 SUZUKI torque specifica-
tions.
Brake linings should always be replaced as
complete axle sets.
See “Brake System Inspection” in section
6.
WARNING
If you have too much brake fluid, it
can spill on the engine. The fluid will
burn if the engine is hot enough. You
or others could be burned, and your
vehicle could be damaged.
WARNING
With the wrong kind of fluid in your
brake system, your brakes may not
work well, or they may not even work
at all. This could cause a crash.
Always use the proper brake fluid.
CAUTION
 Using the wrong fluid can badly
damage brake system parts. For
example, just a few drops of min-
eral-based oil, such as engine oil,
in your brake system can damage
brake system parts so badly that
they’ll have to be replaced. Don’t let
someone put in the wrong kind of
fluid.
 If you spill brake fluid on your vehi-
cle’s painted surfaces, the paint fin-
ish can be damaged. Be careful not
to spill brake fluid on your vehicle.
If you do, wash it off immediately.
See “Appearance Care” in the
Index.
WARNING
The brake wear warning sound
means that soon your brakes won’t
work well. That could lead to an acci-
dent. When you hear the brake wear
warning sound, have your vehicle
serviced.
CAUTION
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Checking Things Under the Hood:

5-28 SERVICE AND APPEARANCE CARE
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Windshield Wiper Blade
ReplacementWindshield wiper blades should be
inspected at least twice a year for wear or
cracking. If the wiper blades become brittle
or damaged, or make streaks when wiping,
replace the wiper blades for optimum driv-
ing visibility. Replacement blades come in
different types and are removed in different
ways.
Here’s how to remove the Shepherd’s
Hook type:
1) Pull the windshield wiper arm away
from the windshield.
2) Press the retaining clip (A) and pull the
wiper blade off the arm.
3) Install a new blade by reversing the
steps 1 and 2.
TiresYour 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 SUZUKI Warranty booklet for details.
For additional information refer to the tire
manufacturer’s booklet included with your
vehicle’s Owner’s Manual.
Tire Sidewall LabelingUseful information about a tire is molded
into its sidewall. The examples below show
a typical passenger car tire and a spare
tire sidewall.
Passenger Car Tire Example
A. Tire Size
The tire size is a combination of let-
ters and numbers used to define a
particular tire’s width, height, aspect
ratio, construction type and service
description. See the “Tire Size” illus-
WARNING
Poorly maintained and improperly
used tires are dangerous.
 Overloading your tires can cause
overheating as a result of too much
friction. You could have an air-out
and a serious accident. See “Load-
ing Your Vehicle” in the Index.
 Under inflated tires pose the same
danger as overloaded tires. The
resulting accident could cause
serious injury. Check all tires fre-
quently to maintain the recom-
mended pressure. Tire pressure
should be checked when your tires
are cold.
 Overi nflated 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 rec-
ommended pressure.
(Continued)
WARNING
(Continued)
 Worn, old tires can cause acci-
dents. If your tread is badly worn,
or if your tires have been damaged,
replace them.
Tires:

5-29 SERVICE AND APPEARANCE CARE
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tration later in this section for more
detail.
B. Department of Transportation (DOT)
Code
The Department of Transportation
(DOT) code indicates that the tire is in
compliance with the U.S. Department
of Transportation Motor Vehicle
Safety Standards.
C. Tire Identification Number (TIN)
The letters and numbers following the
DOT code are the Tire Identification
Number (TIN). The TIN shows the
manufacturer and plant code, tire size
and the date the tire was manufac-
tured. The TIN is molded on to both
sides of the tire, although only one
side may have the date of manufac-
ture.
D. Tire Ply Material
The type of cord and number of plies
in the sidewall and under the tread.
E. Uniform Tire Quality Grading (UTQG)
Tire manufacturers are required to
grade tires based on three perfor-
mance factors: treadwear, traction
and temperature resistance.
F. Maximum Cold Inflation Load Limit
Maximum load that can be carried
and the maximum pressure needed to
support that load.
G. Load Index and Speed Rating
The two- or three-digit number is the
tire’s load index, the maximum load a
tire can carry at the speed indicated
by its speed symbol at the maximuminflation pressure. The higher the
number is, the greater the load carry-
ing capacity. The letter symbol
denotes the speed at which a tire is
designed to be driven for extended
periods of time. (Ratings are listed
below.)
*The letters ZR may be used on tires with a
maximum speed capability over 149 mph
and will always be used on tires with a
maximum speed capability over 186 mph.Compact Spare Tire Example
A. Temporary Use Only Marking
The compact spare tire should not be
driven at speeds over 50 mph (80 km/
h). The compact spare tire is for
emergency use when a regular road
tire has lost air and gone flat. See
“Compact Spare Tire” and “If a Tire
Goes Flat” in this section.
B. Tire Ply Material
The type of cord and number of plies
in the sidewall and under the tread.
C. Tire Identification Number (TIN)
The Tire Identification Number (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 Letter Rating Speed Rating
Q 99 mph
R106 mph
S112 mph
T118 mph
U124 mph
H130 mph
V149 mph
W 168 mph*
Y 186 mph*
Tires:

5-30 SERVICE AND APPEARANCE CARE
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and the maximum pressure needed to
support that load. See “Compact
Spare Tire” in this section and “Load-
ing Your Vehicle” in section 4.
E. Tire Inflation Pressure
The temporary use tire or compact
spare tire should be inflated to 60 psi
(420 kPa). For more information on
tire pressure and inflation, see “Tire
Inflation Pressure” in this section.
F. Tire Size
A combination of letters and numbers
defining 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.
Tire Size
The following illustration shows an exam-
ple of a typical passenger car tire size.
A. Tire Type
This letter code indicates the primary
intended use of the tire. The “P” as
the first character in the tire size
means a passenger vehicle tire engi-
neered 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 “70”, as shown in item “C” of
the illustration, it would mean that thetire’s sidewall is 70% 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 construc-
tion, the letter “D” means diagonal or
bias ply construction; and the letter
“B” means belted-bias ply construc-
tion.
E. Rim Diameter
Diameter of the wheel in inches.
F. Service Description
These characters represent the load
range and the speed rating of a tire.
The load range represents the load
carrying capacity a tire is certified to
carry. The speed rating is the maxi-
mum speed a tire is certified to carry
a load. Speed ratings range from “A”
to “Z”.
WARNING
Your SUZUKI is equipped with tires
which are all the same type and size.
This is important to ensure proper
steering and handling of the vehicle.
Never mix tires of different size or
type on the four wheels of your vehi-
cle. Mixing tires could cause you to
lose control while driving which may
lead to an accident. The size and type
of tires used should be only those
approved by SUZUKI Motor Corpora-
tion as standard or optional equip-
ment for your vehicle.
Tires:

5-31 SERVICE AND APPEARANCE CARE
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Glossary of Tire TerminologyAir 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 trans-
mission, power steering, power brakes,
power windows, power seats, and air con-
ditioning.
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 Inflation Pressure:
The amount of air pressure in a tire, mea-
sured in pounds per square inch (psi)
before a tire has built up heat from driving.
Curb Weight:
This means 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
motor vehicle safety standards. The DOT
code includes the Tire Identification Num-
ber (TIN), an alphanumeric designator
which can also identify the tire manufac-
turer, production plant, brand and date of
production.
GVWR:
Gross Vehicle Weight Rating.
This is the maximum permissible overall
weight of the fully loaded vehicle (including
all occupants, accessories and cargo).
GAWR:
Gross Axle Weight Rating.
This is the maximum permissible weight on
an individual axle.
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. There are
6.9 kPa’s to one psi.
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 may 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 150 pounds
(68 kg).
Occupant Distribution:
Distribution of occupants in a vehicle as
specified in the third column of Table 1
(shown below).
Outward Facing Sidewall:
The side of a asymmetrical tire that has a
particular side that faces outward when
Tires: