2017 MAZDA MX5 MIATA wheel

7 –39 If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.Signal Warning
(Illuminate)
Lane Departure
Warning System
(LDWS) Warning
Indication/Warning
Light *

The warning indication/warning light illuminates if there is a problem with the system.
Have your vehicle inspected at an Authorized Mazda Dealer. 
The LDWS does not operate when the warning indication/warning light illuminates.
CAUTION 
A problem in the system may be indicated under the following conditions. Have your
vehicle inspected at an Authorized Mazda Dealer.

When the warning indication/warning light illuminates while driving the vehicle.
When the system is canceled automatically, the warning indication/warning
light illuminates. Normally, the system restores automatically and the warning
indication/warning light turns off, however, if the warning indication/warning light
illuminates, there may be a problem with the system.

The warning indication/warning light does not illuminate when the ignition is
switched ON.

Always use tires for all wheels that are of the specified size, and the same
manufacture, brand, and tread pattern. In addition, do not use tires with significantly
different wear patterns on the same vehicle. If such improper tires are used, the LDWS
may not operate normally.

When an emergency spare tire is used, the system may not operate normally.
NOTE If the windshield area in front of the Forward Sensing Camera (FSC) is fogged or
obstructed, the light turns on temporarily. If the light remains turned on, there may be a
problem with the system.
(Amber)
High Beam Control
System (HBC)
Warning Indication/
Warning Light *
The warning indication/warning light illuminates if there is a problem with the system.
Have your vehicle inspected at an Authorized Mazda Dealer.
NOTE If the windshield area in front of the Forward Sensing Camera (FSC) is fogged or
obstructed, the warning indication/warning light illuminates temporarily. If the warning
indication/warning light illuminates, there may be a problem with the system.
Blind Spot
Monitoring (BSM)
Warning Indication *
The message is displayed when the system has a malfunction. Have your vehicle inspected
by an Authorized Mazda Dealer.
NOTE If the vehicle is driven on a road with less traffic and few vehicles that the radar sensors
can detect, the system may pause. However, it does not indicate a malfunction.
Blind Spot
Monitoring (BSM)
OFF Indicator
Light *
A problem in the system may be indicated under the following conditions.
Have your vehicle inspected at an Authorized Mazda Dealer. 
The light does not turn on when the ignition is switched ON. 
The light remains on even when the Blind Spot Monitoring (BSM) system can be operated.
The light turns on while driving the vehicle.
NOTE If the vehicle is driven on a road with less traffic and few vehicles that the radar sensors
can detect, the system may pause (The Blind Spot Monitoring (BSM) OFF indicator light in
the instrument cluster illuminates). However, it does not indicate a malfunction.
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7 –51 If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models. Tire Inflation Pressure Warning
Beep *
The warning beep sound will be heard
for about 3 seconds when there is any
abnormality in tire inflation pressures
(page 4-105 ).
Blind Spot Monitoring (BSM)
System Warning Beep *
Driving forward
The warning beep operates when the turn
signal lever is operated to the side where
the Blind Spot Monitoring (BSM) warning
light is illuminated.
NOTE
A personalized function is available to
change the Blind Spot Monitoring (BSM)
warning beep sound volume.
Refer to Personalization Features on page
9-9 .
Reversing
If a moving object such as a vehicle or
two-wheeled vehicle approaches on the
left or right from behind your vehicle, the
Blind Spot Monitoring (BSM) warning
sound is activated. Lane Departure Warning Sound *
While the system is operating, if the
system determines that the vehicle may
depart from the lane, it sounds a warning
sound. NOTE 
The volume of the LDWS warning sound
can be changed.
Refer to Personalization Features on
page 9-9 . 
The type of the LDWS warning sound
can be changed.
Refer to Personalization Features on
page 9-9 .
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8 –22 Customer Information and Reporting Safety Defects
Uniform Tire Quality Grading System (UTQGS)
Uniform Tire Quality Grading System (UTQGS)This information relates to the tire grading system developed b y the U.S. National Highway
Traffic Safety Administration for grading tires by tread wear, traction, and temperature
performance.
Tread WearThe tread wear grade is a comparative rating based on the wear rate of the tire when tested
under controlled conditions on a specified government test cours e.
For example, a tire graded 150 would wear one-and-a-half times as well on the government
course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use, however,
and may depart significantly from the norm because of variations in driving habits, service
practices and differences in road characteristics and climate.
Traction-AA, A, B, CThe traction grades, from highest to lowest, are AA, A, B, and C. These grades represent the
tire's ability to stop on wet pavement as measured under contro lled conditions on specified
government test surfaces of asphalt and concrete. A tire marked C may have poor traction
performance.
WARNING The traction grade assigned to this tire is based on braking (straight ahead) traction tests
and does not include acceleration cornering (turning), hydroplaning, or peak traction
characteristics.
Temperature-A, B, C
The temperature grades A (the highest), B, and C, represent the tire's resistance to the
generation of heat and its ability to dissipate heat when tested under controlled conditions on
a specified indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate and reduce tire
life, and excessive temperatures can lead to sudden tire failure.
Grade C corresponds to a level of performance which all passeng er vehicle tires must meet
under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher
levels of performance on the laboratory test wheel than the min imum required by law.
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8 –25 Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)P215/65R15 95H is an example of a tire size and load index rati ng. Here is an explanation
of the various components of that tire size and load index rati ng. Note that the tire size and
load index rating may be different from the example.
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.
65
“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 co nstruction”.
15
“15” is the wheel rim diameter in inches.
95
“95” is the Load Index. This two-or three-digit number indicates how much weight each tire
can support.
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8 –27 Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)Maximum Permissible Inflation 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 specified governmen t 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 specified 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 specified indoor laboratory test whee l.
Snow Tires
In some heavy snow areas, local governments may require true sn ow 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.
SAFETY WARNING
The following safety warning appears on the tire's sidewall.
SERIOUS INJURY MAY RESULT FROM: 
EXPLOSION OF TIRE/RIM ASSEMBLY DUE TO IMPROPER MOUNTING-MATCH
TIRE DIAMETER TO RIM DIAMETER; NEVER EXCEED 40 psi (275 kPa) TO SEAT
BEADS-ONLY SPECIALLY TRAINED PERSONS SHOULD MOUNT TIRES. 
TIRE FAILURE DUE TO UNDER-INFLATION/OVERLOADING/DAMAGE-
FOLLOW OWNER'S MANUAL AND PLACARD IN VEHICLE-FREQUENTLY
CHECK INFLATION PRESSURE AND INSPECT FOR DAMAGE.
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8 –29 Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)16
“16” is the wheel rim diameter in inches.
90
“90” is the Load Index. This two-or three-digit number indicates how much weight each tire
can support.
M
“M” is the speed rating. The speed rating denotes the maximum speed for which the use of
the tire is rated. Letter Rating Speed Rating
M 81 mph
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8 –32 Customer Information and Reporting Safety Defects
Tire Information (U.S.A.) Glossary of TermsTire Placard: A label indicating the OE tire sizes, recommended inflation pressure, and the
maximum weight the vehicle can carry.
Tire Identification Number (TIN): A number on the sidewall of each tire providing
information about the tire brand and manufacturing plant, tire size, and date of manufacture.
Inflation Pressure: A measure of the amount of air in a tire.
kPa: Kilopascal, the metric unit for air pressure.
psi: Pounds per square inch, the English unit for air pressure.
B-pillar: The structural member at the side of the vehicle behind the front door.
Original Equipment (OE): Describes components originally equipped on the vehicle.
Vehicle Load Limit: The maximum value of the combination weight of occupants and
cargo.
Bead Area of the Tire: Area of the tire next to the rim.
Sidewall Area of the Tire: Area between the bead area and the tread.
Tread Area of the Tire: Area on the perimeter of the tire that contacts the road when it's
mounted on the vehicle.
Seating capacity means the total allowable number of vehicle occupants. Seating capacity
is described on the tire label.
Production options weight is the combination weight of installed regular production
options weighing over 2.3 kilograms in excess of the standard items which they replace,
and not previously considered in the curb weight or accessory weight, including heavy duty
brakes, ride levelers, roof rack, heavy duty battery, and special trim.
Rim is the metal support (wheel) for a tire or a tire and tube assembly upon which the tire
beads are seated.
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8 –33 Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
Tire MaintenanceImproper or inadequate vehicle maintenance can cause tires to w ear abnormally. Here are
some important maintenance points:
Tire Inflation PressureInspect all tire pressure monthly (including the spare) when the tires are cold. Maintain
recommended pressures for the best ride, top handling, and minimum tire wear. Use the
pressures specified on the vehicle tire information placard or t ire label for optimum service.
Tire RotationTo equalize tread wear, rotate the tires every 12,000 km (7,500 miles) at the latest or sooner
if irregular wear develops. Mazda recommends to rotate every 8,000 km (5,000 miles) to
help increase tire life and distribute wear more evenly.
Do not include (TEMPORAR Y USE ONLY)
spare tire in rotation. Forward
Inspect the tires for uneven wear and damage. Abnormal wear is usually caused by one or a
combination of the following: 
Incorrect tire pressure 
Improper wheel alignment 
Out-of-balance wheel 
Severe braking
After rotation, inflate all tire pressures to specification (page 9-8 ) and inspect the lug
nuts for tightness.
(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 4-108 .
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