Page 463 of 591
461
uuCharging uControl Box
Continued
Driving
Control Box
POWER Indicator
CHARGE Indicator
Error Warning
Indicator
Vehicle StatusControl Box LED Status IndicatorCharge
IndicatorExplanatory notesGoes offStays onBlinkingPOWERCHARGE (Error
Warning)
InitializingInitial processing
Stand bySlowlyReady and waiting for the timer
ChargeComes on during charge.
CompletionCharge end
18 CLARITY PHEV CSS-31TRW6000.book 461 ページ 2017年12月25日 月曜日 午後2時22分
Page 464 of 591
462
uuCharging uControl Box
Driving
Vehicle
StatusControl Box LED St atus IndicatorCharge
IndicatorExplanatory notesGoes offStays onBlinkingPOWERCHARGE (Error
Warning)
Plug
temperature rise
detected
or
A rise in plug temperature due to bad electrical contact between the
outlet and the plug was detected.
Check the connection between the outlet and the plug.
●Charging is carried out with a limited charging current.
FaultExcept above lighting patterns or or
There could be a problem with the electric supply or an internal
failure.
Contact an authorized Honda Cl arity Plug-In Hybrid dealer.
You don’t have to charge before contacting the dealer.
18 CLARITY PHEV CSS-31TRW6000.book 462 ページ 2017年12月25日 月曜日 午後2時22分
Page 475 of 591

473
uuBefore Performing Maintenance uSafety When Performing Maintenance
Continued
Maintenance
Safety When Performing Maintenance
Some of the most important safe ty precautions are given here.
However, we cannot warn you of every conceivable hazard that can arise in
performing maintenance. Only you can decide whether you should perform a given
task.
• To reduce the possibility of fire or explos ion, keep cigarettes, sparks, and flames
away from the 12-volt battery, all High Volt age system, and all fuel related parts.
• Never leave rags, towels, or other flammable objects under the hood.
u Heat from the engine and exhaust can ignite them, causing a fire.
• To clean parts, use a co mmercially available degreas er or parts cleaner, not
gasoline.
• Wear eye protection and protective clothing when working with the 12-volt
battery or compressed air.
• Engine exhaust contains carbon monoxide, which is poisonous and can kill you.
u Only operate the engine if th ere is sufficient ventilation.
■Maintenance Safety
1Safety When Performing Maintenance
3WARNING
Improperly maintaining this vehicle or
failing to correct a pr oblem before driving
can cause a crash in which you can be
seriously hurt or killed.
Always follow the inspection and
maintenance recommendations according
to the schedules in this owner’s manual.
3WARNING
Failure to properly follow maintenance
instructions and precautions can cause you
to be seriously hurt or killed.
Always follow the procedures and
precautions in this owner’s manual.
18 CLARITY PHEV CSS-31TRW6000.book 473 ページ 2017年12月25日 月曜日 午後2時22分
Page 478 of 591

476
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
The system message indicator ( ) comes on al ong with the Maintenance Minder message.
■Warning Message and Maintenance Minder Information on
the Driver Information Interface
Warning MessageMaintenance Minder
InformationExplanationInformation
Service Due SoonOne or more of the service items are
required in less than 30 days. Press the button to switch to another
display.The remaining days will be
counted down per day.
Service Due NowOne or more of the service items are
required in less than 10 days. Press the button to switch to another
display.Have the indicated service
performed as soon as
possible.
Service Past DueThe indicated maintenance service is
still not done after the remaining time
reaches 0. Press the button to
switch to another display.Your vehicle has passed the
service required point.
Immediately have the service
performed and make sure to
reset the Maintenance
Minder
TM.
18 CLARITY PHEV CSS-31TRW6000.book 476 ページ 2017年12月25日 月曜日 午後2時22分
Page 491 of 591
489
uuMaintenance Under the Hood uEngine Coolant
Maintenance
1. Make sure the engine and radiator are
cool.
2. Turn the radiator cap 1/8 turn counter-
clockwise and relieve any pressure in the
cooling system.
3. Push down and turn the radiator cap
counter-clockwise to remove it.
4. The coolant level should be up to the base
of the filler neck. Add coolant if it is low.
5. Put the radiator cap back on, and tighten it
fully.
■Radiator1Radiator
NOTICE
Pour the fluid slowly and ca refully so you do not spill
any. Clean up any spills immediately; they can
damage components in the engine compartment.
3WARNING
Removing the radiator cap while the
engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
Radiator Cap
18 CLARITY PHEV CSS-31TRW6000.book 489 ページ 2017年12月25日 月曜日 午後2時22分
Page 501 of 591

499
Maintenance
Checking and Maintaining Tires
Checking Tires
To safely operate your vehicle, your tires 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 handling and fuel economy, and
are more likely to fail from overheating.
Overinflated tires make your vehicle ride ha rshly, are more prone 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 tread. 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.
1Checking 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 consistent vibration
while driving. New tires and any that have been
removed and reinstalled sh ould be properly balanced.
3WARNING
Using tires that are excessively worn or
improperly inflated can cause a crash in
which you can be seriously hurt or killed.
Follow all instructions in this owner’s
manual regarding ti re inflation and
maintenance.
18 CLARITY PHEV CSS-31TRW6000.book 499 ページ 2017年12月25日 月曜日 午後2時22分
Page 505 of 591

503
uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
Maintenance
The traction grades, from highest to lowest, are AA, A, B, and C.
Those grades represent the tire’s ability to stop on wet pavement
as measured under controlled conditions on specified
government test surfaces of asph alt and concrete. A tire marked
C may have poor traction performance.
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 te sted 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 ex cessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of performance which
all passenger car 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
required by law.
■Traction
■Temperature
1 Traction
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.
1Temperature
Warning: The temperature grade for
this tire is establishe d for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive loading,
either separately or in combination,
can cause heat buildup and possible
tire failure.
18 CLARITY PHEV CSS-31TRW6000.book 503 ページ 2017年12月25日 月曜日 午後2時22分
Page 507 of 591
505
uuChecking and Maintaining Tires uTire and Wheel Replacement
Maintenance
Tire and Wheel Replacement
Replace your tires with radials of the same size, load range, speed rating, and
maximum cold tire pressure rating (as shown on the tire’s sidewall). Using tires of a
different size or construction can cause ce rtain vehicle systems such as the ABS and
Vehicle Stability Assist (VSA®) system to work incorrectly.
It is best to replace all four tires at the same time. If that isn’t possible, replace the
front or rear tires in pairs.
Make sure that the wheel’s specifications match those of the original wheels.1 Tire and Wheel Replacement
3WARNING
Installing improper tires on your vehicle can
affect handling and stability. This can cause
a crash in which you can be seriously hurt or
killed.
Always use the size and type of tires
recommended in this owner’s manual.
18 CLARITY PHEV CSS-31TRW6000.book 505 ページ 2017年12月25日 月曜日 午後2時22分