2018 HONDA CLARITY PLUG IN HYBRID TPMS

425uu When Driving u Tire Pressure Monitoring System (TPMS)
Continued
Driving
Tire Pressure Monitoring System (TPMS) Instead of directly measuring the pressure in each tire, the TPMS on this vehicle
monitors and compares the rolling radius and rotational characteristics of each
wheel and tire while you are driving to determine if one or more tires are
significantly under-inflated. This will caus e the low tire pressure/TPMS indicator to
come on and a message to appear on the driver information interface.
You must start TPMS calibration every time you:
• Adjust the pressure in one or more tires.
• Rotate the tires.
• Replace one or more tires.
Before calibrating the TPMS:
• Set the cold tire pressure in all four tires. 2 Checking Tires P. 499
Make sure:
• The vehicle is at a complete stop.
• The gear position is in ( P
.
• The power mode is in ON.■ TPMS Calibration 1 Tire Pressure Monitoring System (TPMS)
The system does not monitor the tires when driving
at low speed.
Conditions such as low ambient temperature and
altitude change directly a ffect tire pressure and can
trigger the low tire pressure/TPMS indicator to come on.
Tire pressure checked and inflated in:
• Warm weather can beco me under-inflated in
colder weather.
• Cold weather can become over-inflated in warmer
weather.
The low tire pressure/TPMS indicator will not come
on as a result of over inflation.
The TPMS may not function pr operly if tire type and
size are mixed. Make sure to use the same size and
type of tire.
2 Checking and Maintaining Tires P. 499
The low tire pressure/TPMS indicator may come on
with a delay or may not come on at all when:
• You rapidly accelerate, decelerate, or turn the
steering wheel.
• You drive on snowy or slippery roads.
• Snow chains are used.
The low tire pressure/TPMS indicator may come on
under the following conditions:
• There is a heavier and une ven load on the tires,
such as when towing a trailer, than the condition at
calibration.
• Snow chains are used.18 CLARITY PHEV CSS-31TRW6000.book 425 ページ ２０１７年８月３１日　木曜日　午後２時４９分

uu When Driving u Tire Pressure Monitoring System (TPMS)
426
Driving You can calibrate the system from the
customized feature on the audio/information
screen.
1. Set the power mode to ON.
2. Select .
3. Select Settings .
4. Select Vehicle .
5. Select TPMS Calibration .
6. Select Cancel or Calibrate .
u When the calibration is complete, the
display returns to the customization
menu screen.
• If the Calibration Failed To Start.
message appears, repeat steps 4-6.
• The calibration pr ocess finishes
automatically. 1 TPMS Calibration
• The calibration process requires appr oximately 30
minutes of cumulative dr iving at speeds between
30-65 mph (48-105 km/h).
• During this period, if the power system is turned on
and the vehicle is not moved within 45 seconds, you
may notice the low tire pressure/TPMS indicator
comes on briefly. This is normal and indicates that
the calibration process is not yet complete.
If snow chains are instal led, remove them before
calibrating the TPMS.
If the low tire pressure/TPMS indicator comes on even
when the properly inflated specified regular tires are
installed, have your vehicl e checked by an authorized
Honda Clarity Plug-In Hybrid dealer.
We recommend that the tires be replaced with the
same brand, model, and size as the originals. Ask an
authorized Honda Clarity Pl ug-In Hybrid dealer for
details.
The indicators for the Vehicle Stability Assist (VSA ® )
System, Vehicle Stability Assist (VSA ® ) OFF, low tire
Pressure/TPMS and Collision Mitigation Braking
System TM
(CMBS TM
) may come on along with a
message in the driver information interface after
reconnecting the 12-volt battery. Drive a short
distance at more than 12 mph (20 km/h). The
indicator should go off. If it does not, have your
vehicle checked by an aut horized Honda Clarity Plug-
In Hybrid dealer.18 CLARITY PHEV CSS-31TRW6000.book 426 ページ ２０１７年８月３１日　木曜日　午後２時４９分

427uu When Driving u Tire Pressure Monitoring System (TPMS) - Required Federal Explanation
Continued
Driving
Tire Pressure Monitoring System (TPMS) - Required
Federal Explanation Each tire, including the spare (if provided), should be checked
monthly when cold and inflated to the inflation pressure
recommended by the vehicle manufa cturer on the vehicle placard
or tire inflation pressure label.
(If your vehicle has tires of a diff erent size than the size indicated
on the vehicle placard or tire inflation pressure label, you should
determine the proper tire inflat ion pressure for those tires.)
As an added safety feature, your vehicle has been equipped with
a tire pressure monitoring system (TPMS) that illuminates a low
tire pressure telltale
when one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure tell tale illuminates, you
should stop and check your tires as soon as possible, and inflate
them to the proper pressure.
Driving on a significantly under-inf lated tire causes the tire to
overheat and can lead to tire fail ure. Under-inflation also reduces
fuel efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability. 18 CLARITY PHEV CSS-31TRW6000.book 427 ページ ２０１７年８月３１日　木曜日　午後２時４９分

428 uu When Driving u Tire Pressure Monitoring System (TPMS) - Required Federal Explanation
Driving Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver ’s responsibility to maintain
correct tire pressure, even if un der-inflation has not reached the
level to trigger illumina tion of the TPMS low ti re pressure telltale.
Your vehicle has also been eq uipped with a TPMS malfunction
indicator to indicate when the sy stem is not operating properly.
The TPMS malfunction indicator is combined with the low tire
pressure telltale. When the system detects a malfunction, the
telltale will flash fo r approximately one minute and then remain
continuously illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the system may
not be able to detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including
the installation of replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS to
continue to function properly. 18 CLARITY PHEV CSS-31TRW6000.book 428 ページ ２０１７年８月３１日　木曜日　午後２時４９分

uu Braking u Collision Mitigation Braking System TM
(CMBS TM
)
442
Driving Press and hold the button until the beeper
sounds to switch the system on or off.
When the CMBS TM
is off:
• The CMBS TM
indicator in the instrument
panel comes on.
• A message on the driver information
interface reminds you that the system is off.
The CMBS TM
is turned on every time you start
the power system, even if you turned it off the
last time you drove the vehicle.■ CMBS TM
On and Off 1 Collision Mitigation Braking System TM
(CMBS TM
)
The CMBS TM
may automatically shut off, and the
CMBS TM
indicator will come and stay on under certain
conditions:
2 CMBS TM
Conditions and Limitations P. 443
The indicators for the Vehicle Stability Assist (VSA ® )
System, Vehicle Stability Assist (VSA ® ) OFF, low tire
Pressure/TPMS and Collision Mitigation Braking
System TM
(CMBS TM
) may come on along with a
message in the driver information interface after
reconnecting the 12-volt battery. Drive a short
distance at more than 12 mph (20 km/h). The
indicator should go off. If it does not, have your
vehicle checked by an aut horized Honda Clarity Plug-
In Hybrid dealer.18 CLARITY PHEV CSS-31TRW6000.book 442 ページ ２０１７年８月３１日　木曜日　午後２時４９分

499
Maintenance
Checking and Maintaining Tires Checking Tires To safely operate your vehicle, your tire s must be of the proper type and size, in
good condition with adequate tread, and properly inflated.
■ Inflation guidelines
Properly inflated tires provid e the best combination of hand ling, tread life, and comfort.
Refer to the driver’s doorjamb label or spec ifications page for the specified pressure.
Underinflated tires wear unev enly, adversely affect handli ng and fuel economy, and
are more likely to fail from overheating.
Overinflated tires make your vehicle ride ha rshly, are more pron e to road hazards,
and wear unevenly.
Every day before you drive, look at each of the tires. If one looks lower than the
others, check the pressure with a tire gauge.
At least once a month or before long trips , use a gauge to measure the pressure in
all tires. Even tires in good condition can lose 1–2 psi (10–20 kPa, 0.1–0.2 kgf/cm 2
)
per month.
■ Inspection guidelines
Every time you check inflation, also examine the tires and valve stems.
Look for:
• Bumps or bulges on the side or in the tr ead. Replace the tire if you find any cuts,
splits, or cracks in the side of the tire . Replace it if you see fabric or cord.
• Remove any foreign objects and inspect for air leaks.
• Uneven tread wear. Have an authorized H onda Clarity Plug-In Hybrid dealer check
the wheel alignment.
• Excessive tread wear. 2 Wear Indicators P. 504
• Cracks or other damage around valve stem. 1 Checking Tires
Measure the air pressure when tires are cold. This
means the vehicle has been parked for at least three
hours, or driven less than 1 mile (1.6 km). If
necessary, add or releas e air until the specified
pressure is reached.
If checked when hot, tire pressure can be as much as
4–6 psi (30–40 kPa, 0.3–0.4 kgf/cm 2
) higher than if
checked when cold.
Whenever tire pressure is adjusted, you must
calibrate the TPMS.
2 TPMS Calibration P. 425
Have an authorized Honda Clarity Plug- In Hybrid
dealer check the tires if you feel a consiste nt vibration
while driving. New tires and any that have been
removed and reinstalled sh ould be properly balanced.3
WARNING Using tires that are excessively worn or
improperly inflated can cause a crash in
which you can be seriously hurt or killed.
Follow all instruction s in this owner’s
manual regarding tire inflation and
maintenance.18 CLARITY PHEV CSS-31TRW6000.book 499 ページ ２０１７年８月３１日　木曜日　午後２時４９分

506 uu Checking and Maintaining Tires u Tire Rotation
Maintenance Tire Rotation Rotating tires according to the maintena nce messages on the driver information
interface helps to distribute wear more evenly and increase tire life.
■ Tires without rotation marks
Rotate the tires as shown here.
■ Tires with rotation marks
Rotate the tires as shown here. 1 Tire Rotation
Tires with directional trea d patterns should only be
rotated front to back (not fr om one side to the other).
Directional tires should be mounted with the rotation
indication mark facing forward, as shown below.
Whenever tires are rotated, you must calibrate the
TPMS.
2 TPMS Calibration P. 425Front
Direction MarkFront
Front18 CLARITY PHEV CSS-31TRW6000.book 506 ページ ２０１７年８月３１日　木曜日　午後２時４９分

509uu 12-Volt Battery u Charging the 12-Volt Battery
Maintenance
Charging the 12-Volt Battery Disconnect both battery cables to prevent damaging your vehicle’s electrical system.
Always disconnect the negative (–) cable first, and reconnect it last. 1 12-Volt Battery
When replacing the battery, the replacement must be
of the same specifications.
Consult an authorized Honda Clarity Plug-In Hybrid
dealer for more information.
The indicators for the Vehicle Stability Assist (VSA ® )
system, VSA ® OFF, Collision Mitigation Braking
System TM
(CMBS TM
), and low tire pressure/Tire
Pressure Monitoring System (TPMS) may come on
along with a message in the driver information
interface when you turn the power system on after
reconnecting the battery.
Drive a short distance at 12 mph (20 km/h). The
indicator should go off. If it does not, have your
vehicle checked by an aut horized Honda Clarity Plug-
In Hybrid dealer.18 CLARITY PHEV CSS-31TRW6000.book 509 ページ ２０１７年８月３１日　木曜日　午後２時４９分