2021 HONDA CLARITY PLUG-IN maintenance

The data belongs to the vehicle owner and may not be accessed by
anyone else except as legally required or with the permission of the
vehicle owner.
Service Diagnostic Recorders
This vehicle is equipped with se rvice-related devices that record
information about powertrain perfo rmance. The data can be used
to verify emissions law requirem ents and/or help technicians
diagnose and solve service problems . It may also be combined with
data from other sources for research purposes, but it remains
confidential. Some diagnostic and maintenance information is
uploaded to Honda upon vehicle start up.
California Perchlorate Contamination Prevention Act
The airbags, seat belt tensioners , and CR type batteries in this
vehicle may contain perchlorate materials - special handling may
apply. See www.dtsc.ca.gov/hazard ouswaste/perchlorate/
As you read this manual, you will find information that is preceded
by a symbol. This information is intended to help you avoid
damage to your vehicle, othe r property, or the environment.
NOTICE
Software End User License Agreement
Your vehicle comes equipped with software, which is governed by
the End User License Agreement in Owner’s Manual, and which
contains a binding arbitration clau se. Please refer to the End User
License Agreement for the terms and conditions governing your
use of the installed software, as well as the applications, services,
functions, and content provided through the software. Your use of
the installed software will serve as your consent to the terms and
conditions of the End User License Agreement.
You may opt out within 30 days of your initial use of the Software
by sending a signed, written noti ce to HONDA at American Honda
Motor Co., Inc. Honda Automobile Customer Services Mail Stop
100-5E-8A, 1919 Torrance Blvd. Torrance, CA 90501-2746.
Privacy Notice
This vehicle may share location an d usage information. To manage
this setting, visit www.hondalink.com/vehicle-data-choices .
To learn more about how we collect and use Personal
Information, please read our Privacy Policy, accessible
at www.honda.com .
21 CLARITY PHEV CSS-31TRW6300.book 1 ページ ２０２０年５月１９日　火曜日　午前１０時 ４６分

High-Voltage Battery Monitoring System
This vehicle is equipped with a monitoring system that compiles
data about your vehicle and drivin g conditions and transmits that
data to Honda at regular intervals as determined at the discretion
of Honda. This data includes information on but not limited to the
following:
●Vehicle location, distance dr iven, warning indicators and
messages, and vehicle speed
●High-Voltage Battery system control and power generation
The system does not record audio or images.
Data collected is used for the sole purposes of technical diagnoses,
preventive maintenance, resear ch and vehicle development.
Neither Honda nor any third party receiving data will use the data
for any other purpose withou t first obtaining customer
authorization.
21 CLARITY PHEV CSS-31TRW6300.book 2 ページ ２０２０年５月１９日　火曜日　午前１０時 ４６分

Contents
This owner’s manual should be considered a permanent part of the
vehicle and should remain with the vehicle when it is sold.
This owner’s manual covers all models of your vehicle. You may find
descriptions of equipment and features that are not on your
particular model.
Images throughout this owner’s manu al (including the front cover)
represent features and equipment that are available on some, but
not all, models. Your particular mo del may not have some of these
features.
This owner’s manual is for vehicles sold in the United States and
Canada.
The information and specifications in cluded in this publication were
in effect at the time of approval for printing. Honda Motor Co., Ltd.
reserves the right, however, to discontinue or change specifications
or design at any time without notice and without incurring any
obligation.2 Safe Driving P. 41
For Safe Driving P. 42 Seat Belts P. 47 Airbags P. 54
2Instrument Panel P. 87
Indicators P. 88 Gauges and Driver Information Interface P. 123
2Controls P. 137
Clock P. 138 Locking and Unlocking the Doors P. 139
Operating the Switches Ar ound the Steering Wheel P. 160
Interior Lights/Interior Convenience Items P. 185
2 Features P. 205
Audio System P. 206 Audio System Basic Operation P. 212
Customized Features P. 308 HomeLink® Universal Transceiver* P. 336
2 Driving P. 373
Before Driving P. 374 Towing a Trailer P. 379
Multi-View Rear Camera P. 455 Refueling P. 457
2 Maintenance P. 477
Before Performing Maintenance P. 478 Maintenance MinderTM P. 481
Checking and Maintaining Wiper Blades P. 502
Climate Control System Main tenance P. 517 Cleaning P. 519
2Handling the Unexpected P. 527
If a Tire Goes Flat P. 528 Handling of the Jack P. 540
Indicator, Coming On/Blinking P. 551
If You Cannot Unlock the Fuel Fill Door P. 568
2 Information P. 571
Specifications P. 572 Identification Numbers P. 574
Emissions Testing P. 577 Warranty Coverages P. 578
21 CLARITY PHEV CSS-31TRW6300.book 4 ページ ２０２０年５月１９日　火曜日　午前１０時 ４６分

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
21 CLARITY PHEV CSS-31TRW6300.book 5 ページ ２０２０年５月１９日　火曜日　午前１０時 ４６分

Visual Index
10
Quick Reference Guide❚Maintenance Under the Hood (P 486)
❚Windshield Wipers (P 168, 502)
❚Tires (P 505, 528)
❚Door Lock/Unlock Control (P 141)
❚Power Door Mirrors (P 176)
❚Headlights (P 164, 500)
❚Front Turn Signal Lights (P 163, 500)
❚How to Refuel (P 458)
❚High-Mount Brake Light (P 501)
❚Emergency Trunk Release Lever (P 154)
❚Opening/Closing the Trunk (P 152)
❚Brake Lights (P 501)
❚Rear Turn Signal Lights (P 501)
❚Back-Up Lights (P 501)
❚Taillights (P 501)
❚Trunk Release Button (P 153)
❚Rear License Plate Light (P 501)
❚Multi-View Rear Camera (P 455)
❚Parking/Daytime Running Lights (P 164, 167, 500)
❚Front Side Marker Lights (P 164, 500)
❚How to Charge (P 461)
❚Tail/Rear Side Marker Lights (P 501)
21 CLARITY PHEV CSS-31TRW6300.book 10 ページ ２０２０年５月１９日　火曜日　午前１０時４６分

19
Quick Reference Guide
Safety Precautions
Do not touch the High Voltage systemAttempting to take a system component apart or disconnect one of its wires can cause
severe electrical shock. If the High Voltage system is in need of maintenance or repair, make
sure that the maintenance or repa ir is carried out by a dealer.
If a crash occurs●Be careful of electric shock hazard.
uIf a severe crash damages your vehicle’s Hi gh Voltage system, there is a possibility of electrical shock due to exposed High Vo ltage
components or wires. If this happens, do not touch any of the High Voltage system components or any of its orange wires.
●Avoid contact with High Voltage battery fluid.
uThe High Voltage battery contains a flammabl e electrolyte that can leak as a result of a severe crash. Avoid any skin or eye contact
with the electrolyte as it is corrosive. If you accidentally come into contact with the electrolyte, rinse the exposed skin or flush your
eyes with copious amounts of water for at least fi ve minutes, then seek medical attention immediately.
●Use a fire extinguisher for an electrical fire.
uAttempting to extinguish an electri cal fire with even a small quantity of water can be dangerous.
●Anytime the vehicle is damaged in a crash, have it repaired by a dealer.
Emergency Shutdown System for the High Voltage SystemIf the vehicle is involved in a crash, the emergency shutdown system will activate depending on the severity of the impact. Whe n the system
activates, the High Voltage system automatica lly shuts down, and the vehicle can no longer move under its own power. To return the High
Voltage system back to normal operation, consult a dealer.
Honda collects and recycles High Voltage batteries used in its vehicles. Consult a dealer for more information.
21 CLARITY PHEV CSS-31TRW6300.book 19 ページ ２０２０年５月１９日　火曜日　午前１０ 時４６分

35
Quick Reference Guide
Maintenance (P 477)
Under the Hood (P 486)
●Check engine oil, coolants and windshield washer fluid. Add
when necessary.
●Check brake fluid.●Check the 12-volt battery condition monthly.
aPull the hood release handle under the corner of the
dashboard.
bLocate the hood latch lever, push it to the side, and then
raise the hood. Once you have raised the hood slightly, you
can release the lever.
cWhen finished, close the hood and make sure it is firmly
locked in place.
Lights (P 500)
●Inspect all lights regularly.
Wiper Blades (P 502)
●Replace blades if they leave streaks
across the windshield.
Tires (P 505)
●Inspect tires and wheels regularly.●Check tire pressures regularly.●Install snow tires for winter driving.
21 CLARITY PHEV CSS-31TRW6300.book 35 ページ ２０２０年５月１９日　火曜日　午前１０ 時４６分

43
uuFor Safe Driving uImportant Safety Precautions
Continued
Safe Driving
■Pay appropriate attention to the task of driving safely
Engaging in cell phone conversation or other activities that keep you from paying
close attention to the road, other vehicles , and pedestrians could lead to a crash.
Remember, situations can change quickly, and only you can decide when it is safe to
divert some attention away from driving.
■Control your speed
Excessive speed is a major factor in crash injuries and deaths. Generally, the higher
the speed, the greater the risk, but serious injuries can also occur at lower speeds.
Never drive faster than is safe for current conditions, regardless of the maximum
speed posted.
■Keep your vehicle in safe condition
Having a tire blowout or a mechanical failure can be extremely hazardous.
To reduce the possibility of such problems, check your tire pressures and condition
frequently, and perform all re gularly scheduled maintenance.
■Do not leave children unattended in the vehicle
Children, pets and people needing assistan ce left unattended in the vehicle may be
injured if they activate one or more of the vehicle controls. They may also cause the
vehicle to move, resulting in a crash in wh ich they and/or another person(s) can be
injured or killed. Also, depending on the am bient temperature, the temperature of
the interior may reach extreme levels, which ca n result in harm or death. Even if the
climate control system is on, never leave them in the vehicle unattended as the
climate control system can shut off at any time.
21 CLARITY PHEV CSS-31TRW6300.book 43 ページ ２０２０年５月１９日　火曜日　午前１０ 時４６分