2021 HONDA CLARITY PLUG-IN overheating

Contents
Child Safety P. 71Safety Labels P. 85
Opening and Closing the Trunk P. 152 Security System P. 155 Opening and Closing the Windows P. 158
Adjusting the Mirrors P. 175 Adjusting the Seats P. 177
Climate Control System P. 195
Audio Error Messages P. 286 General Information on the Audio System P. 290
Bluetooth ® HandsFreeLink ® P. 339
When Driving P. 380 Braking P. 437Parking Your Vehicle P. 453
Charging P. 460 Fuel Economy and CO
2 Emissions P. 475
Maintenance Under the Hood P. 486 Replacing Light Bulbs P. 500
Checking and Maintaining Tires P. 505 12-Volt Battery P. 514 Remote Transmitter Care P. 516
Accessories and Modifications P. 525
Power System Won’t Start P. 541 If the 12-Volt Battery Is Dead P. 545 Overheating P. 548
Fuses P. 559 Emergency Towing P. 567
If You Cannot Open the Charge Lid P.569 If You Cannot Open the Trunk P. 570
Devices that Emit Radio Waves P. 575 Reporting Safety Defects P. 576
Authorized Manuals P. 582 Customer Service Information P. 583
Quick Reference GuideP. 6
Safe DrivingP. 41
Instrument PanelP. 87
ControlsP. 137
FeaturesP. 205
DrivingP. 373
MaintenanceP. 477
Handling the UnexpectedP. 527
InformationP. 571
IndexP. 585
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36
Quick Reference Guide
Handling the Unexpected (P 527)
Flat Tire (P 528)
●Park in a safe location and repair the flat
tire using the temporary tire repair kit.
Indicators Come On
(P 551)
●Identify the indicator and consult the
owner’s manual.
Power System Won’t Start
(P 541)
●If the 12-volt battery is dead, jump start
using a booster battery.
Blown Fuse

(P 559)
●Check for a blown fuse if an electrical
device does not operate.
Overheating (P 548)
●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 567)
●Call a professional towing service if you
need to tow your vehicle.
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106
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 a dealer.
2 Checking the 12-Volt Battery P. 514
●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. 551
●Appears when the engine coolant temperature gets
abnormally high.
2Overheating P. 548
●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 a deal er as soon as possible.
●Appears when the fuel fill cap is loose or is not
installed.
2Tighten Fuel Cap Message P. 553
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109
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. 548
●Appears if the power system is in diagnostic mode.●You may notice a decrease in available power. Have
your vehicle checked by a dealer immediately.
●As a result of diagnostics, the POWER SYSTEM
indicator may come on.
2 POWER SYSTEM Indicator P. 90
U.S. models
Canadian models
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505
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 provide the best combination of handling, tread life, and
comfort. Refer to the driver’s doorjamb labe l or specifications 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 a deal er check the wheel alignment.
• Excessive tread wear.
2 Wear Indicators P. 510
•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. 431
Have a dealer check the tires if you feel a consistent
vibration while driving. Ne w tires and any that have
been removed and reinst alled should 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 instruction s in this owner’s
manual regarding tire inflation and
maintenance.
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527
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
If a Tire Goes FlatTemporarily Repairi ng a Flat Tire....... 528
Handling of the Jack ......................... 540
Power System Won’t Start Checking the Procedure ................... 541
If the Smart Entry Remote Battery is Weak .......................................... 543
Emergency Power System Off........... 544
If the 12-Volt Battery Is Dead .......... 545
Overheating How to Handle Overheating ............. 548
Indicator, Coming On/Blinking
If the Low Oil Pressure Warning Appears .. 551
If the 12-Volt Battery Charging System Indicator Comes On ....................... 552
If the Malfunction Indicator Lamp Comes
On or Blinks ..................................... 553
If the Brake System Indicator (Red) Comes On or Blinks ....................................... 554
If the Electric Power Steering (EPS) System Indicator Comes On ........................... 555
If the Brake System Indicator (Red) Comes On or Blinks at the Same Time
When the Brake System Indicator
(Amber) Comes On ...................... 556
If the Low Tire Pressure/TPMS Indicator
Comes On or Blinks ....................... 557
If the Transmission System Indicator Blinks
along with the Warning Message ...... 558
Fuses Fuse Locations ................................. 559
Inspecting and Changing Fuses ........ 566
Emergency Towing ........................... 567
If You Cannot Unlock the Fuel Fill Door.. 568If You Cannot Open the Charge Lid ... 569
If You Cannot Open the Trunk ........ 570
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548
Handling the Unexpected
Overheating
How to Handle Overheating
Overheating symptoms are as follows:
•The High Temperature. Power Reduced. message appears on the driver
information interface.
• The Stop Driving When Safe. Engine Temperature Too Hot message appears
on the driver information interface.
• Steam or spray comes out of the engine compartment.
The High Temperature. Power Reduced. message appears on the driver
information interface when the po wer system temperature is high.
2Driver Information Interface Warning and Information Messages P. 105
1.Immediately park the vehicle in a safe place.
u Set the parking brake, and put the transmission into
(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 a dealer.
■The High Temperature. Power Reduced. Message Appears
on the Driver Information Interface
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Continued549
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 Driver Information Interface1 The Stop Driving When Safe. Engine Temperature Too
Hot Message Appears on the Driver Information Interface
NOTICE
Continuing to drive with the Stop Driving When
Safe. Engine Temperature Too Hot message on
the driver information interface 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.
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