wheel MAZDA MX5 MIATA 2016 Repair Manual

7–34
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
SignalWarning
Electronic Brake Force Distribution System
Warning If the electronic brake force distribution control unit determines that \
some components
are operating incorrectly, the control unit may illuminate the brake system warning
light and the ABS warning light simultaneously. The problem is likely to be the
electronic brake force distribution system.
WARNING
Do not drive with both the ABS warning light and brake warning light illuminated. Have the vehicle towed to an Authorized Mazda Dealer to have the brakes
inspected as soon as possible:
Driving when the brake system warning light and ABS warning light are
illuminated simultaneously is dangerous.
When both lights are illuminated, the rear wheels could lock more quickly in an
emergency stop than under normal circumstances.
Charging System Warning Light If the warning light illuminates while driving, it indicates a malfuncti\
on of the
alternator or of the charging system.
Drive to the side of the road and park off the right-of-way. Consult an Authorized
Mazda Dealer.CAUTION
Do not continue driving when the charging system warning light is illuminated because the engine could stop unexpectedly.
Engine Oil Warning LightThis warning light indicates low engine oil pressure.
CAUTION
Do not run the engine if the oil pressure is low. Otherwise, it could result in extensive engine damage.
If the light illuminates or the warning indication is displayed while dr\
iving:
1.Drive to the side of the road and park off the right-of-way on level ground.
2.Turn off the engine and wait 5 minutes for the oil to drain back into the oil p\
an.
3.Inspect the engine oil level 6-28. If it's low, add the appropriate amount of engine
oil while being careful not to overfill.
CAUTION
Do not run the engine if the oil level is low. Otherwise, it could result in extensive engine damage.
4.Start the engine and check the warning light.
If the light remains illuminated even though the oil level is normal or \
after adding oil,
stop the engine immediately and have your vehicle towed to an Authorized Mazda
Dealer.
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7–35
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
SignalWarning
(Red)High Engine Coolant
Temperature Warning Light
The light flashes when the engine coolant temperature is extremely high, and
illuminates when the engine coolant temperature increases further.
Handling Procedure
Flashing light
Drive slowly to reduce engine load until you can find a safe place to stop the vehicle
and wait for the engine to cool down.
Illuminated light
This indicates the possibility of overheating. Park the vehicle in a saf\
e place
immediately and stop the engine.
Refer to Overheating 7-27.
CAUTION
Do not drive the vehicle with the high engine coolant temperature warning light illuminated. Otherwise, it could result in damage to the engine.
Power Steering Malfunction Indicator
Light The light illuminates if the electric power steering has a malfunction.
If the light illuminates, stop the vehicle in a safe place and do not op\
erate the steering
wheel. There is no problem if the light turns off after a while. Contact an Authorized
Mazda Dealer if the light illuminates continuously.
NOTE
If the indicator light illuminates, the power steering will not operate \
normally. If this
happens, the steering wheel can still be operated, however, the operation may feel
heavy compared to normal, or the steering wheel could vibrate when turning.
Repeatedly jerking the steering wheel left and right while the vehicle i\
s stopped or moving extremely slowly will cause the power steering system to go into protective
mode which will make the steering feel heavy, but this does not indicate a problem. If
this occurs, park the vehicle safely and wait several minutes for the sy\
stem to return
to normal.
Contact Authorized Mazda Dealer and Have Vehicle Inspected
If any of the following warning lights or the indicator light turns on/flashes, the system may
have a malfunction. Contact an Authorized Mazda Dealer to have your vehicle inspected.
Signal Warning
Master Warning Light(Vehicles with type B audio)
The light turns on when the system has a malfunction.
Operate the center display and verify the content.
Refer to If a Warning Light Turns On or Flashes on page
7-33.
(Vehicles without type B audio)
The light illuminates continuously if any one of the following occurs. C\
onsult an
Authorized Mazda Dealer.There is a malfunction in the battery management system.There is a malfunction in the brake switch.
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7–38
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
SignalWarning
(Illuminate)Lane Departure
Warning System
(LDWS) Warning Light
*
The warning light remains turned on if there is a problem with the syste\
m. Have your vehicle inspected at an Authorized Mazda Dealer.The LDWS does not operate when the
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 light remains turned on while driving the vehicle. When the system is canceled automatically, the light turns on. Normally, the system
restores automatically and the light turns off, however, if the light remains turned on,
there may be a problem with the system.
The 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 Light
*
The light remains turned on 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 light turns on temporarily. If the light remains turned on, there may be a
problem with the system.
LED Headlight Warning Light This light illuminates if there is a malfunction in the LED headlight. H\
ave your vehicle
inspected by an Authorized Mazda Dealer.
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 turned on even if the Blind Spot Monitoring (BSM) switch is operated.It 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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7–48
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Lane Departure Warning System
(LDWS) 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.
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.
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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 by the U.S\
. National Highway
Traffic Safety Administration for grading tires by tread wear, traction, and temperature
performance.
Tread Wear
The tread wear grade is a comparative rating based on the wear rate of t\
he tire when tested
under controlled conditions on a specified government test course.
For example, a tire graded 150 would wear one-and-a-half times as well o\
n 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, C
The 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 controlled 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 c\
ontrolled conditions on
a specified indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to degener\
ate and reduce tire
life, and excessive temperatures can lead to sudden tire failure.
Grade C corresponds to a level of performance which all passenger 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 minimum requ\
ired 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 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.
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 ei\
ther 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 construction”.
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 p\
ut 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 t\
he tire
when tested under controlled conditions on a specified 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 c\
ontrolled 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 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. M\
ake
sure you purchase snow tires that are the same size and construction typ\
e 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 RatingSpeed Rating
M 81 mph
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8–32
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
Glossary of Terms
Tire 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 whic\
h they replace,
and not previously considered in the curb weight or accessory weight, in\
cluding 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 u\
pon which the tire
beads are seated.
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8–33
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
Tire Maintenance
Improper or inadequate vehicle maintenance can cause tires to wear abnor\
mally. Here are
some important maintenance points:
Tire Inflation Pressure
Inspect 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 tire label for optimum service.
Tire Rotation
To equalize tread wear, rotate the tires every 12,000 km (7,500 miles) at the latest or soon\
er
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 (TEMPORARY 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 m\
onitoring system is
necessary to make the system operate normally.
Refer to Tire Pressure Monitoring System Initialization on page 4-96.
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