air condition TOYOTA MIRAI 2020 Warranties & Maintenance Guides (in English)

9
BFGOODRICH TIRE
Safety Maintenance Information
Read this Owner’s Manual, the information on the sidewall of
your tires, your vehicle owner’s manual and the tire information
placard that came on your vehicle, for essential safety and
maintenance information.
While you should have complete confidence in your new
BFGOODRICH
® tires, it’s important to register your tires so we can
contact you about any new safety developments. For online tire
registration, visit www.tireregistration.com.
Tire Failure – Safety Warning
Any tire may fail as a result of an improperly repaired puncture,
impact damage, improper inflation, overloading, a crack, a bulge or
other distortion, or other conditions resulting from use or misuse. Tire
failures, such as a rapid air loss or a tread and belt detachment, may
increase risk of injury, death, or property damage. To reduce the risk
of a tire failure, you should thoroughly read and follow the instruction\
s
in this manual, your vehicle owner’s manual, the tire information
placard on the vehicle (located in the vehicle’s door jamb, inside
the fuel hatch, or on the glove compartment door), and tire sidewall
information regarding safety warnings, proper tire use, and proper
tire maintenance.
Controlling a Vehicle When a Tire Failure Occurs
If a tire failure occurs, you may hear a loud noise, feel a vibration, o\
r
feel the vehicle pull toward the side of the failed tire. If that happen\
s,
DO NOT BRAKE OR ABRUPTLY TURN THE STEERING WHEEL.
Instead, slowly remove your foot from the accelerator and hold the
steering wheel firmly while steering to remain in your lane. Once the
vehicle has slowed and is fully in your control, apply the brakes gently\
,
safely pull over to the shoulder, and come to a stop in the safest
location possible. Inspect all tires. If any tire looks flat or low , or shows
detachment or any other damage, replace the wheel and tire
with a properly inflated spare after first inspecting the spare for

15
BFGOODRICH TIRE
Consult your BFGoodrich tire retailer for maximum speed capabilities.
Although a tire may be speed-rated, no vehicle should be operated in
an unsafe or unlawful manner. Speed ratings are based on laboratory
tests that relate to performance on the road, but are not applicable
if tires are underinflated, overloaded, worn out, damaged, altered,
improperly repaired, or retreaded. Furthermore, a tire’s speed rating
does not imply that vehicles can be safely driven at the maximum
speed for which the tire is rated, particularly under adverse road
and weather conditions or if the vehicle has unusual characteristics.
BFGoodrich highway passenger tires that do not have a speed symbol
on the sidewall have a maximum speed rating of 105 mph (170 kph).
Light truck highway tires that do not have a speed symbol on the
sidewall of the tire have a maximum speed rating of 87 mph (140
kph). BFGoodrich winter tires that do not have a speed symbol on
the sidewall or tires with Q symbols have a speed rating of 100 mph
(160 km/hr). Winter tires with a speed symbol have a maximum speed
rating in accordance with the symbol. The speed and other ratings of
retreaded tires are assigned by the retreader and replace the original
manufacturer’s ratings. IMPORTANT: The replacement tire speed
rating should be equal to or higher than the OEM tire speed rating. If a\

lower speed rated tire is selected, then the vehicle top speed becomes
limited to that of the lower speed rating selected. The customer must
be informed of the new speed restriction and that the vehicle’s handling
may be adversely impacted. REMEMBER…High speed driving can
be dangerous and may damage your tires. AND…When driving at
highway speeds, correct inflation pressure is especially important.
Inspect Your Tires, and Do Not Drive on a Damaged
Tire or Wheel
Road hazards and objects in the road, such as potholes, curbs, glass,
metal, rocks, wood, and debris, can damage a tire and should be
safely avoided. If your vehicle hits any such hazard or object, however,

25
BFGOODRICH TIRE
year of decade, e.g.: 1995, 1985, etc.) For the 1990-1999 decade
BFGOODRICH® brand tires are marked with a triangle pointing to the
last three numeric characters. Tires produced after July 2000 have an
additional digit to identify a given decade. For example, 2800 means
the tire was produced during the 28th week of 2000; 0201 during the
2nd week of 2001. If the last digits of your DOT number contain three
numeric characters and are not marked with a triangle, consult a
qualified tire professional to determine the year of manufacture.
Service Life and Safety for Passenger Car and Light
Truck Tires Including Spare Tires
Tires are composed of various types of material and rubber
compounds having performance properties essential to the proper
functioning of the tire itself. These component properties evolve over
time. For each tire, this evolution depends upon many factors such
as weather, storage conditions, and conditions of use (load, speed,
inflation pressure, maintenance etc.) to which the tire is subjected
throughout its life. This service-related evolution varies widely so that
accurately predicting the serviceable life of any specific tire in advance
is not possible. That is why, in addition to regular inspections and
inflation pressure maintenance by consumers, it is recommended that
passenger car and light truck tires, including spare tires be inspected \
regularly by a qualified tire specialist, such as a BFGoodrich tire
retailer, who will assess the tire’s suitability for continued service.
Tires which have been in use for 5 years or more should continue to
be inspected by a specialist at least annually. Consumers are strongly
encouraged to be aware not only of their tires’ visual condition and
inflation pressure but also of any change in dynamic performance such
as increased air loss, noise or vibration, which could be an indication \
that the tires need to be removed from service to prevent tire failure. \
It
is impossible to predict when tires should be replaced based on their
calendar age alone. However, the older a tire, the greater the chance
that it will need to be replaced due to the service-related evolution or
other conditions found upon inspection or detected during use. While
most tires will need replacement before they achieve 10 years, it is
recommended that any tires in service 10 years or more from the date
of manufacture, including spare tires, be replaced with new tires as
a precaution even if such tires appear serviceable and even if they

26
BFGOODRICH TIRE
have not reached the legal wear limit. For tires that were on an origina\
l
equipment vehicle (i.e., acquired by the consumer on a new vehicle),
follow the vehicle manufacturer’s tire replacement recommendations,
when specified (but not to exceed 10 years). The date when a tire
was manufactured is located on the sidewall of each tire. Consumers
should locate the Department of Transportation or “DOT” code on the
tire. The code begins with “DOT” and ends with the week and year of
manufacture. For example, a DOT code ending with “2214” indicates
a tire made in the 22nd week of 2014.
Remember . . . to Avoid Damage to Your Tires and
Possible Accident:
• INSPECT TIRES AT LEAST MONTHLY, AND IMMEDIATELY
AFTER STRIKING ANY ROAD HAZARD.
•
CHECK TIRE PRESSURE AT LEAST ONCE EACH MONTH
WHEN TIRES ARE COLD AND BEFORE EVERY LONG TRIP.
•
NEVER UNDERINFLATE OR OVERINFLATE A TIRE.
•
NEVER OVERLOAD YOUR VEHICLE AND TIRES.
•
ALWAYS OBEY LEGAL SPEED LIMITS AND DRIVE AT A SPEED
THAT IS REASONABLE UNDER THE ROAD AND WEATHER
CONDITIONS.
•
AVOID DRIVING OVER POTHOLES, OBSTACLES, CURBS OR
EDGES OF PAVEMENT.
•
AVOID EXCESSIVE WHEEL SPINNING.
•
IF YOU SEE ANY DAMAGE TO A TIRE, REPLACE THE TIRE
WITH A PROPERLY INFLATED SPARE AND VISIT A QUALIFIED
TIRE PROFESSIONAL AT ONCE.
•
KEEP TIRES AND WHEELS PROPERLY ALIGNED, BALANCED,
AND ROTATED.
•
HAVE MOUNTING AND REPAIRS DONE BY A TIRE
PROFESSIONAL.
•
IF YOU HAVE ANY QUESTIONS, CONTACT YOUR
BFGOODRICH TIRE RETAILER.
FAILURE TO FOLLOW ANY OF THE RECOMMENDED

BRIDGESTONE / FIRESTONE
36
Different Tire Pressures for the Front and Rear Tires: For some
vehicles, the recommended front and rear inflation pressures may
be different (such as in the example shown in Figure 2). Make sure
you take this into account during inflation pressure checks and when
rotating tires.
Pressure Loss: Tires can lose 1 psi (7 kPa) per month under normal
conditions and can lose 1 psi (7 kPa) for every 10˚F (5.6˚C temperature
drop. A puncture, leaking valve, or other damage could also cause
inflation pressure loss. If a tire loses more than 2 psi (14 kPa) per
month, have it checked by a qualified tire service professional.
Tips For Safe Tire Inflation
SAFETY WARNING
Inflating an unsecured tire is dangerous. If it bursts, it could be hurled
into the air with explosive force resulting in serious personal injury or
death. Never inflate a tire unless it is
secured to the vehicle or a tire
mounting machine.
• Check your tire pressures, including your spare tire, monthly
and before long trips or carrying extra weight. Be sure to use an
accurate pressure gauge.
•
Check inflation pressure when the tires are “cold.” Tires are
considered “cold” when the vehicle has been parked for three
hours or more, or if the vehicle has been driven less than a mile at
moderate speed.
•
Never release pressure from a hot tire in order to reach the
recommended cold tire pressure. Normal driving causes tires
to run hotter and inflation pressure to increase. If you reduce
inflation pressure when your tires are hot, you may dangerously
underinflate your tires.
•
If it is necessary to adjust inflation pressure when your tires are
“hot,” set their pressure to 4 psi (28 kPa) above the recommended
cold inflation pressure. Recheck the inflation pressure when the
tires are cold.
•
If your tires lose more than 2 psi (14 kPa) per month, the tire, the
valve, or wheel may be damaged. Consult a qualified tire service
professional for an inspection.

BRIDGESTONE / FIRESTONE
40
Tire Repairs
SAFETY WARNING
Driving on an improperly repaired tire is dangerous. An improper repair
can be unreliable or permit further damage to the tire. The tire may
suddenly fail, causing serious personal injury or death. A complete
inspection and repair of
your tire in accordance with U.S. Tire
Manufactur
ers Association procedures should be conducted by a
qualified tire service professional.
While the comprehensive procedures and recommendations for
tire repair are beyond the scope of this manual, a proper tire repair
includes the following:
•
The tire is demounted from the wheel for a complete
inspection, inside and out. Some damage to the tire may only be
evident on the interior of the tire.
•
The puncture injury is 1/4 inch (6 mm)
or less and must be within the tread
area as shown in the graphic. This helps
ensure long-term tire and repair durability.
•
A patch is applied to the interior of the
tire and the puncture hole is filled with
a suitable plug/stem filler. This helps
ensure that the interior of the tire is
adequately sealed to prevent inflation pressure loss and prevents
contamination of the steel belts and other plies from the elements
(such as water) in the outside world.
PATCH + PLUG/STEM PATCH ONLY PLUG/STEM ONLY
Additional notes about tire repairs :
•
Not all punctured or damaged tires can be properly repaired;
consequently, they must be replaced. NEVER repair a tire with any
of the following conditions:
- Wear to the tire’s built-in treadwear indicators or to 2/32 inch (1.6 mm) remaining tread depth in any area of the tread.

BRIDGESTONE / FIRESTONE
42
Speed Rating: The tire’s speed rating is void if the tire is repaired,
retreaded, damaged, abused, or otherwise altered from its original
condition. Thereafter, it should be treated as a non-speed rated tire.
See “Tire Speed Ratings” in this manual.
Improper repair voids the tire Limited Warranty. See “Limited
Warranty” in this manual.
RFT (Run-Flat Technology) Tires: In addition to the above, there are
recommendations specific to the repair of RFT tires; see “RFT Tires
with Run-Flat Technology” in this manual.
Tire Mounting and Other Servicing
SAFETY WARNING
Removing and replacing tires on wheels can be dangerous. Attempting
to mount tires with improper tools or procedures may result in a tire
explosion causing serious personal injury or death. This is only a job
for a qualified tire service professional. Never perform tire service
procedures without proper training, tools, and equipment.
This manual is not intended to provide proper training or service
procedures for tire mounting, demounting, balancing, rotation,
or repair. Please leave these tasks to qualified tire service
professionals. For your safety and that of others:
•
Always stand well clear of any tire mounting operation. This is
especially important when the service operator inflates the tire. If
the tire has been improperly mounted, it may burst with explosive
force causing serious personal injury or death.
•
Tires must match the width and diameter requirements of the
wheels. For example, 16 inch diameter tires must only be mounted
to 16 inch diameter wheels. Radial tires must only be mounted to
wheels approved for radial tires.
•
Wheels must be free of cracks, dents, chips, and rust. Tires must
be free of bead damage, cuts, and punctures.
•
Never inflate a tire beyond 40 psi (275 kPa) to seat the beads. Be
absolutely certain beads are fully seated before adjusting inflation
pressure to the level recommended for vehicle operation.

BRIDGESTONE / FIRESTONE
45
have an accident resulting in serious personal injury or death. Consult
your vehicle owner’s manual and a qualified tire service professional
for proper tire replacement.
High Speed Driving

SAFETY WARNING
Driving at high speed is dangerous and can cause a vehicle accident,
including serious personal injury or death.
•
Regardless of the speed and handling capabilities of your car and
its tires, a loss of vehicle control can result from exceeding the
maximum speed allowed by law or warranted by traffic, weather,
vehicle, or road conditions.
•
High-speed driving should be left to trained professionals operating
under controlled conditions.
•
No tire, regardless of its design or speed rating, has unlimited
capacity for speed, and a sudden tire failure can occur if its limits
are exceeded. See “Tire Speed Ratings,” the next section in
this manual.
Refer to your vehicle owner’s manual for any tire pressure
recommendations for high speed driving.
Tire Speed Ratings
A tire bearing a letter “speed rating” designation indicates the
tire’s speed capability according to standardized laboratory tests.
This speed rating system is intended to permit comparison of the
speed capabilities of different tires. When replacing your tires,
consult your vehicle owner’s manual and tire information placard for
recommendations, if any, concerning the use of speed rated tires. •
To avoid reducing the speed capability of the vehicle, replace a
speed rated tire only with another tire having at least the same
speed rating. It is the “top speed” of the “slowest” tire on\
the
vehicle which limits the vehicle’s top speed without tire failure.
•
The tire’s speed rating is void if the tire is repaired, retreaded,
damaged, abused, or otherwise altered from its original condition.

BRIDGESTONE / FIRESTONE
54
design and vehicle application (consult your vehicle owner’s manual).
By international standard, RFT tires have a baseline limitation in run-
flat mode of the following:
Maximum Speed: 50 mph (80 km/h)
Maximum Distance: 50 miles (80 km)
Note:•
Maximum distance values are determined under controlled
conditions, which may vary in actual use.
•
Your mileage capability may be less, or more, depending on your
specific operating conditions.
•
If in doubt, do not exceed the 50 mile (80 km) limitation.
•
Seek tire service as soon as possible to minimize tire damage.
Special Service and Repair Issues
Run-Flat Certified Retailers
Because of the advanced technology and design of RFT tires and
the required tire pressure monitoring systems (TPMS), Bridgestone
Firestone Run-Flat Certified Retailers are specially trained to sell and
service RFT tires.
Run-Flat Certified Retailers have the necessary equipment and are
specially trained to properly mount and demount RFT tires and to
handle TPMS devices. Conventional mounting equipment may
irreparably damage RFT tires and an improper repair is unsafe
and will void the Limited Warranty. Accordingly, it is important to
go to a Bridgestone Firestone Run- Flat Certified Retailer for tire
maintenance and replacement.
Call toll-free 1-877-BFS-4RFT or visit www.bridgestonetire.com to
locate the nearest Bridgestone Firestone Run-Flat Certified Retailer .
Inspection after Run-Flat or Low Pressure Operation
Following run-flat or low tire pressure operation, or in the event of any
other tire damage or unusual condition, it is very important to obtain a\

proper and complete tire evaluation as soon as possible.

BRIDGESTONE / FIRESTONE
55
Rotation
Follow the vehicle manufacturer’s recommendations, or rotate every
5,000 miles per the recommendations in this manual (see “Radial Tire
Rotation”). In some cases, TPMS devices require reprogramming with
each tire rotation.
RFT Tire Replacement
Do not replace or mix RFT tires with conventional tires, unless on an
emergency/temporary basis. Conventional tires do not have run-flat
capability and the handling characteristics of the vehicle with these
tires may be different. If a conventional tire is used on an emergency/
temporary basis, verify that its size, load capacity, inflation pressure,
and speed rating specifications meet the requirements of the vehicle.
Replace any conventional tire with the proper RFT tire as soon as
possible.
RFT Tire Damage and Repair
No tire, regardless of its design or quality is indestructible. RFT tires
can be ultimately rendered unusable due to a puncture or other road
hazard as well as from improper run-flat or low tire pressure operation.
Some punctures may be repaired under certain restrictions and
prescribed procedures.
When driven flat or with low pressure, factors affecting reparability
include vehicle speed, load, and maneuvering; the amount of inflation
pressure loss; and ambient temperature. In any situation, the extent
and location of direct damage from a puncturing object or other road
hazard are also critical factors.
RFT tires are not repairable in any of the following situations:
•
If the tire was operated with inflation pressure less than 15 psi
(100 kPa).
•
Abrasion or other damage is present on the exterior tread, sidewall
or bead areas.
•
Abrasion, wrinkling, or separation is present on the tire interior.
•
Any condition or damage is present that disqualifies repair of a
conventional tire.