2017 MAZDA MODEL CX-9 wheel size

6–43
Maintenance and Care
Owner Maintenance
Tires
For reasons of proper performance, safety,
and better fuel economy, always maintain
recommended tire infl ation pressures and
stay within the recommended load limits
and weight distribution.
WARNING
Using Diff erent Tire Types:
Driving your vehicle with diff erent
types of tires is dangerous. It could
cause poor handling and poor braking;
leading to loss of control.
Except for the limited use of the
temporary spare tire, use only the
same type tires (radial, bias-belted,
bias-type) on all four wheels.

Using Wrong-Sized Tires:
Using any other tire size than what is
specifi ed for the vehicle (page 9-9 )
is dangerous. It could seriously aff ect
ride, handling, ground clearance,
tire clearance, and speedometer
calibration. This could cause you to
have an accident. Use only tires that
are the correct size specifi ed for the
vehicle.

Tire Infl ation Pressure
WARNING
Always infl ate the tires to the correct
pressure:
Overinfl ation or underinfl ation of tires
is dangerous. Adverse handling or
unexpected tire failure could result in a
serious accident.
Refer to Tires on page 9-9 .

Use only a Mazda-genuine tire valve
cap:
Use of a non-genuine part is
dangerous as the correct tire air
pressure cannot be maintained if the
tire valve becomes damaged. If the
vehicle is driven under this condition,
the tire air pressure will decrease which
could result in a serious accident. Do
not use any part for the tire valve cap
that is not a Mazda-genuine part.

Inspect all tire pressures monthly
(including the spare) when the tires are
cold. Maintain recommended pressures for
the best ride, handling, and minimum tire
wear.
Refer to the specifi cation charts (page
9-9 ).
(With tire pressure monitoring system)
After adjusting the tire pressure,
initialization of the tire pressure
monitoring system is necessary to make
the system operate normally.
Refer to Tire Pressure Monitoring System
Initialization on page 4-153 .
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6–46
Maintenance and Care
Owner Maintenance
*Some models.
CAUTION
 


 Do not use your temporary spare tire
rim with a snow tire or a conventional
tire. Neither will properly fi t and could
damage both tire and rim.
 


 The temporary spare tire has a tread life
of less than 5,000 km (3,000 miles). The
tread life may be shorter depending on
driving conditions.
 


 The temporary spare tire is for limited
use, however, if the tread wear solid-
band indicator appears, replace the tire
with the same type of temporary spare
(page 6-45 ).

NOTE
Tires degrade over time, even when
they are not being used on the road. It
is recommended that tires generally be
replaced when they are 6 years or older.
Heat caused by hot climates or frequent
high loading conditions can accelerate
the aging process. You should replace the
spare tire when you replace the other road
tires due to the aging of the spare tire. The
period in which the tire was manufactured
(both week and year) is indicated by a
4-digit number.
Refer to Tire Labeling on page 8-24 .

Replacing a Wheel
WARNING
Always use wheels of the correct size on
your vehicle:
Using a wrong-sized wheel is
dangerous. Braking and handling
could be aff ected, leading to loss of
control and an accident.

CAUTION
A wrong-sized wheel may adversely
aff ect:




 Tire fi t



 Wheel and bearing life



 Ground clearance



 Snow-chain clearance



 Speedometer calibration



 Headlight aim



 Bumper height



 Tire Pressure Monitoring System *
NOTE




 When replacing a wheel, make sure
the new one is the same as the original
factory wheel in diameter, rim width,
and offset (inset/outset).
 


 For details, contact an Authorized
Mazda Dealer.


Proper tire balancing provides the best
riding comfort and helps reduce tread
wear. Out-of-balance tires can cause
vibration and uneven wear, such as
cupping and fl at spots.
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7–10
If Trouble Arises
Flat Tire
3. Turn on the hazard warning fl asher.
4. Have everyone get out of the vehicle
and away from the vehicle and traffi c.
5. Remove the jack, tool, and spare tire
(page 7-3 ).
6. Block the wheel diagonally opposite
the fl at tire. When blocking a wheel,
place a tire block both in front and
behind the tire.


NOTE
When blocking a tire, use rocks or wood
blocks of suffi cient size if possible to hold
the tire in place.

Removing a Flat Tire
WARNING
When jacking-up a vehicle, always shift
the selector lever to P, apply the parking
brake, and place wheel blocks in the
position diagonally opposed to the jack:
Changing a fl at tire without using
wheel blocks is dangerous because the
vehicle may move and fall off the jack
even with the select lever is in P, which
could result in an accident.

1. Loosen the lug nuts by turning them
counterclockwise one turn each, but do
not remove any lug nuts until the tire
has been raised off the ground.



2. Place the jack on the ground.
3. Turn the jack screw in the direction
shown in the fi gure and adjust the jack
head so that it is close to the jack-up
position.


Jack head

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7–34
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


Check Engine Light If this light illuminates while driving, the vehicle may have a problem. It is important to
note the driving conditions when the light illuminated and consult an Authorized Mazda
Dealer.
The check engine light may illuminate in the following cases:
 The fuel tank level being very low or approaching empty.
 The engine's electrical system has a problem.
 The emission control system has a problem.
 The fuel-fi ller cap is missing or not tightened securely.
If the check engine light remains on, or it fl ashes continuously , do not drive at high speeds
and consult an Authorized Mazda Dealer as soon as possible.


Automatic
Transaxle Warning
Indication/Warning
Light The indication/light illuminates when the transaxle has a problem. CAUTION
If the automatic transaxle warning indication/light illuminates, the transaxle has
an electrical problem. Continuing to drive your Mazda in this condition could cause
damage to your transaxle. Consult an Authorized Mazda Dealer as soon as possible.


AWD Warning
Indication
*
“4WD System Malfunction” is displayed
The indication is displayed under the following conditions. The system may have a
malfunction. Have the vehicle checked at an Authorized Mazda Dealer.
 When there is a malfunction in the AWD system.
 When there is a large difference between the tire size of the front and rear wheels.
“4WD System High Load” is displayed
The indication is displayed under the following conditions. Park the vehicle in a safe place
and check that the warning indication light turns off, and then drive the vehicle. Contact an
Authorized Mazda Dealer if the indication is continuously displayed.
 When the differential oil temperature is excessively high.
 When there is a large difference between the front and rear wheel rotation, such as when
trying to remove the vehicle from mud.

AWD Warning
Light
*
When the light is turned on
The light turns on under the following conditions. The system may have a malfunction.
Have the vehicle checked at an Authorized Mazda Dealer.
 When there is a malfunction in the AWD system.
 When there is a large difference between the tire size of the front and rear wheels.
When the light is fl ashing
Park the vehicle in a safe place. After a few moments, if the warning light stops fl ashing,
you can resume driving. If the light does not stop fl ashing, contact an Authorized Mazda
Dealer.
 When the differential oil temperature is excessively high.
 When there is a large difference between the front and rear wheel rotation, such as when
trying to remove the vehicle from mud.
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7–37
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


(Amber)
Mazda Radar
Cruise Control
(MRCC) Warning
Indication
* The “Front Radar Sensor System Malfunction” is displayed if there is a malfunction in the
system while the Mazda Radar Cruise Control (MRCC) system is on. Have your vehicle
inspected at an Authorized Mazda Dealer.


(Amber)
Lane-keep Assist
System (LAS) &
Lane Departure
Warning System
(LDWS) Warning
Indication
* The message is displayed when the system has a malfunction. Have your vehicle inspected
at an Authorized Mazda Dealer.
The system does not operate when the warning message is displayed.
CAUTION
 Always use tires for all wheels that are of the specifi ed size, and the same manufacture,
brand, and tread pattern. In addition, do not use tires with signifi cantly different wear
patterns on the same vehicle. If such improper tires are used, the system may not operate
normally.

 When an emergency spare tire is used, the system may not operate normally.

LED Headlight
Warning Light This light illuminates if there is a malfunction in the LED headlight. Have your vehicle
inspected by an Authorized Mazda Dealer.

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8–25
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
P
Indicates a tire that may be installed on cars, SUVs, minivans and light trucks as designated
by the Tire and Rim Association (T&RA).
NOTE
If your tire size does not begin with a letter this may mean it is designated by either ETRTO
(European Tire and Rim Technical Organization) or JATMA (Japan Tire Manufacturing
Association).

215
“215” is the nominal width of the tire in millimeters. This three-digit number gives the
width in millimeters of the tire from sidewall edge to sidewall edge. In general, the larger
the number, the wider the tire.
6 5
“65” is the aspect ratio. This two-digit number indicates the tire's ratio of height to width.
R
“R” is the tire construction symbol. R indicates “Radial ply construction”.
1 5
“15” is the wheel rim diameter in inches.
9 5
“95” is the Load Index. This two-or three-digit number indicates how much weight each tire
can support.
H
“H” is the speed rating. The speed rating denotes the maximum speed for which the use of
the tire is rated.

Letter Rating Speed Rating
Q 99 mph
R 106 mph
S 112 mph
T 118 mph
U 124 mph
H 130 mph
V 149 mph
W 168
* mph
Y 186 * mph
* For tires with a maximum speed capability over 149 mph, tire manufacturers sometimes
use the letters ZR. For tires with a maximum speed capability over 186 mph, tire
manufacturers always use the letters ZR.

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8–26
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
M S or M/S: Mud and Snow
AT: All Terrain.
AS: All Season. The “M
S” or “M/S” indicates that the tire has some functional use in mud
and snow.
U.S. DOT Tire Identifi cation Number (TIN)
This begins with the letters “DOT” which indicates the tire meets all federal standards. The
next two numbers or letters are the plant code where it was manufactured, and the last four
numbers represent the week and year the tire was manufactured. For example, the numbers
457 means the 45st week of 1997. After 2000 the numbers go to four digits. For example,
the number 2102 means the 21th week of 2002. The other numbers are marketing codes
used at the manufacturer's discretion. This information is used to contact consumers if a tire
defect requires a recall.
Tire Ply Composition and Materials Used
The number of plies indicates the number of layers of rubber-coated fabric in the tire.
In general, the greater the number of plies, the more weight a tire can support. Tire
manufacturers also must indicate the tire materials, which include steel, nylon, polyester,
and other.
Maximum Load Rating
This number indicates the maximum load in kilograms and pounds that can be carried by the
tire.
Maximum Permissible Infl ation Pressure
This number is the greatest amount of air pressure that should ever be put in the tire under
normal driving conditions.
Tread Wear, Traction and Temperature Grades
Tread wear: The tread wear grade is a comparative rating based on the wear rate of the tire
when tested under controlled conditions on a specifi ed government test course. For example,
a tire graded 150 would wear one and one-half (1 1/2) times as well on the government
course as a tire graded 100.
Traction: The traction grades, from highest to lowest are AA, A, B, and C. The grades
represent the tire's ability to stop on wet pavement as measured under controlled conditions
on specifi ed government test surfaces of asphalt and concrete. A tire marked C may have
poor traction performance.
Temperature: The temperature grades are A (the highest), B and C, representing the
tire's resistance to the generation of heat and its ability to dissipate heat when tested under
controlled conditions on a specifi ed indoor laboratory test wheel.
Snow Tires
In some heavy snow areas, local governments may require true snow tires, those with very
deeply cut tread. These tires should only be used in pairs or placed on all four wheels. Make
sure you purchase snow tires that are the same size and construction type as the other tires
on your vehicle.
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8–28
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
Information on Temporary Tires
Please refer to the sample below.


1. Temporary tires
2. Nominal width of tire in millimeters
3. Ratio of height to width (aspect ratio)
4. Diagonal
5. Rim diameter code
6. Load index & speed symbol

T115/70D16 90M is an example of a tire size and load index rating. Here is an explanation
of the various components of that tire size and load index rating. Note that the tire size and
load index rating may be different from the example.
T
Indicates a tire that may be installed on cars, SUVs, minivans and light trucks as designated
by the Tire and Rim Association (T&RA).
1 1 5
“115” is the nominal width of the tire in millimeters. This three-digit number gives the width
in millimeters of the tire from sidewall edge to sidewall edge. In general, the larger the
number, the wider the tire.
7 0
“70” is the aspect ratio. This two-digit number indicates the tire's ratio of height to width.
D
“D” is the tire construction symbol. D indicates “diagonal ply construction”.
1 6
“16” is the wheel rim diameter in inches.
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