2020 HONDA CLARITY PLUG-IN overheating

Contents
Child Safety P. 69Safety Labels P. 83
Opening and Closing the Trunk P. 150 Security System P. 153 Opening and Closing the Windows P. 156
Adjusting the Mirrors P. 173 Adjusting the Seats P. 175
Climate Control System P. 193
Audio Error Messages P. 284 General Information on the Audio System P. 288
Bluetooth ® HandsFreeLink ® P. 337
When Driving P. 378 Braking P. 435Parking Your Vehicle P. 451
Charging P. 458 Fuel Economy and CO
2 Emissions P. 473
Maintenance Under the Hood P. 484 Replacing Light Bulbs P. 498
Checking and Maintaining Tires P. 503 12-Volt Battery P. 512 Remote Transmitter Care P. 514
Accessories and Modifications P. 523
Power System Won’t Start P. 539 Jump Starting P. 543 Overheating P. 546
Fuses P. 557 Emergency Towing P. 565
When You Cannot Open the Charge Lid P. 567 When You Cannot Open the Trunk P. 568
Devices that Emit Radio Waves P. 573 Reporting Safety Defects P. 574
Authorized Manuals P. 579 Customer Service Information P. 580
Quick Reference GuideP. 6
Safe DrivingP. 41
Instrument PanelP. 85
ControlsP. 135
FeaturesP. 203
DrivingP. 371
MaintenanceP. 475
Handling the UnexpectedP. 525
InformationP. 569
IndexP. 582
20 CLARITY PHEV-31TRW6200.book 5 ページ ２０１９年９月２４日　火曜日　午後１２時９分

36
Quick Reference Guide
Handling the Unexpected (P 525)
Flat Tire (P 526)
●Park in a safe location and repair the flat
tire using the temporary tire repair kit.
Indicators Come On
(P 549)
●Identify the indicator and consult the
owner’s manual.
Power System Won’t Start
(P 539)
●If the 12-volt battery is dead, jump start
using a booster battery.
Blown Fuse

(P 557)
●Check for a blown fuse if an electrical
device does not operate.
Overheating (P 546)
●Park in a safe location. If you do not see
steam under the hood, open the hood,
and let the power system cool down.
Emergency Towing
(P 565)
●Call a professional towing service if you
need to tow your vehicle.
20 CLARITY PHEV-31TRW6200.book 36 ページ ２０１９年９月２４日　火曜日　午後１２時９分

104
uuIndicators uDriver Information Interface Wa rning and Information Messages
Instrument Panel
MessageConditionExplanation
●Appears when there is a problem with the sensor on
the 12-volt battery.●Have your vehicle checked by an authorized Honda
Clarity Plug-In Hybrid dealer.
2 Checking the 12-Volt Battery P. 512
●Appears when the engine oil pressure is low.●Appears while driving - Immediately stop in a safe
place.
2If the Low Oil Pressure Warning Appears P. 549
●Appears when the engine coolant temperature gets
abnormally high.
2Overheating P. 546
●Appears when the engine coolant temperature is
near its upper limit.●Drive slowly to prevent overheating.
●Appears if there is a pr oblem with the cooling
system.●Drive slowly to prevent ov erheating and have your
vehicle checked by an author ized Honda Clarity Plug-In
Hybrid dealer as soon as possible.
●Appears when the fuel fill cap is loose or is not
installed.
2 Tighten Fuel Cap Message P. 551
20 CLARITY PHEV-31TRW6200.book 104 ページ ２０１９年９月２４日　火曜日　午後１２時９分

107
uuIndicators uDriver Information Interface Wa rning and Information Messages
Continued
Instrument Panel
MessageConditionExplanation
●Appears when the high voltage battery charge level
is extremely low.●Caused by the low battery charge level -
Immediately charge the high voltage battery.
●Appears when the power system temperature is low.●Your vehicle has less ability to accelerate and may be
harder to start on an incline.
●In extremely cold climates, keep the vehicle stored in a
garage.
●In extremely cold climates, keep the vehicle stored in a
garage and connect th e charging connector.
●Appears when the power system temperature is
high.●Your vehicle has less ability to accelerate and may be
harder to start on an incline.
●Park in a safe place, an d cool the system down.
2Overheating P. 546
●Appears if the power system is in diagnostic mode.●You may notice a decrease in available power. Have
your vehicle checked by an authorized Honda Clarity
Plug-In Hybrid dealer immediately.
●As a result of diagnostics, the POWER SYSTEM
indicator may come on.
2 POWER SYSTEM Indicator P. 88
U.S. models
Canadian models
20 CLARITY PHEV-31TRW6200.book 107 ページ ２０１９年９月２４日　火曜日　午後１２時９分

503
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 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 Honda Clarity Plug-In Hybrid dealer check
the wheel alignment.
• Excessive tread wear.
2 Wear Indicators P. 508
•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. 429
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 tire inflation and
maintenance.
20 CLARITY PHEV-31TRW6200.book 503 ページ ２０１９年９月２４日　火曜日　午後１２時９分

525
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
If a Tire Goes FlatTemporarily Repairi ng a Flat Tire....... 526
Handling of the Jack ......................... 538
Power System Won’t Start Checking the Procedure ................... 539
If the Smart Entry Remote Battery is Weak .......................................... 541
Emergency Power System Off........... 542
Jump Starting .................................... 543
Overheating How to Handle Overheating ............. 546
Indicator, Coming On/Blinking
If the Low Oil Pressure Warning Appears .. 549
If the 12-Volt Battery Charging System Indicator Comes On ....................... 550
If the Malfunction Indicator Lamp Comes
On or Blinks ..................................... 551
If the Brake System Indicator (Red) Comes On or Blinks ....................................... 552
If the Electric Power Steering (EPS) System Indicator Comes On ........................... 553
If the Brake System Indicator (Red) Comes On or Blinks at the Same Time
When the Brake System Indicator
(Amber) Comes On ...................... 554
If the Low Tire Pressure/TPMS Indicator
Comes On or Blinks ....................... 555
If the Transmission System Indicator Blinks
along with the Warning Message .... 556
Fuses Fuse Locations ................................. 557
Inspecting and Changing Fuses ........ 564
Emergency Towing ........................... 565
When You Cannot Unlock the Fuel Fill
Door ................................................. 566
When You Cannot Open the Charge
Lid ................................................. 567
When You Cannot Open the Trunk .. 568
20 CLARITY PHEV-31TRW6200.book 525 ページ ２０１９年９月２４日　火曜日　午後１２時９分

546
Handling the Unexpected
Overheating
How to Handle Overheating
Overheating symptoms are as follows:
•The High Temperature. Power Reduced. message appears on the multi-
information display.
• The Stop Driving When Safe. Engine Temperature Too Hot message appears
on the multi-information display.
• Steam or spray comes out of the engine compartment.
The High Temperature. Power Reduced. message appears on the multi-
information display when the powe r system temperature is high.
2Driver Information Interface Warning and Information Messages P. 103
1.Immediately park the vehicle in a safe place.
u Change the gear position to
(P, and set the parking brake. Turn off all
accessories and turn on the hazard warning lights.
2. Keep the power mode in ON, and wait until the message disappears.
u If the message does not disappear, have the vehicle inspected at an authorized
Honda Clarity Plug-In Hybrid dealer.
■The High Temperature. Power Reduced. Message Appears
on the Multi-Information Display
20 CLARITY PHEV-31TRW6200.book 546 ページ ２０１９年９月２４日　火曜日　午後１２時９分

Continued547
uuOverheating uHow to Handle Overheating
Handling the Unexpected
■First thing to do
1. Immediately park the vehicle in a safe place.
2. Turn off all accessories and turn on the hazard warning lights.
u No steam or spray present: Keep the power system on and open the hood.
u Steam or spray is present: Turn off the power system and wait until it
subsides. Then open the hood.
■The Stop Driving When Safe. Engine Temperature Too Hot
Message Appears on the Multi-Information Display1 The Stop Driving When Safe. Engine Temperature Too
Hot Message Appears on the Multi-Information Display
NOTICE
Continuing to drive with the Stop Driving When
Safe. Engine Temperature Too Hot message on
the multi-information display may damage the
engine.
3WARNING
Steam and spray from an overheated
engine can seri ously scald you.
Do not open the hood if steam is coming
out.
20 CLARITY PHEV-31TRW6200.book 547 ページ ２０１９年９月２４日　火曜日　午後１２時９分