
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.
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515
Maintenance
Climate Control System Maintenance
Air Conditioning
To ensure proper and safe operation, the Society of Automotive Engineers (SAE 
J2845) recommends that the refrigerant system only be serviced by trained and 
certified technicians.
Never repair or replace the air conditio ning evaporator (cooling coil) with one 
removed from a used or salvaged vehicle.
New replacement mobile air conditioning  evaporators must be certified (and 
labeled) as meeting SAE Standard J2842.1 Climate Control System Maintenance
NOTICE
Vented refrigerant is harmful to the environment.
To avoid refrigerant from  venting, never replace the 
evaporator with one re moved from a used or 
salvaged vehicle.
Refrigerant in your vehicle’ s air conditioning system is 
flammable and can be igni ted during servicing if 
proper procedures  are not followed.
The air conditioner labe l is found under the hood:
2 Safety Labels  P. 83
2 Specifications  P. 570
Canadian models
: Caution
: Flammable 
Refrigerant
: Requires Registered 
Technician to Service
: Air Conditioning 
System
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519
uuCleaning uExterior Care
Continued
Maintenance
Exterior Care
Dust off the vehicle body after you drive.  Regularly inspect your vehicle for scratches 
on painted surfaces. A scratch on a painted  surface can result in body rust. If you 
find a scratch, promptly repair it.
Wash the vehicle regularly. Wash more frequently when driving in the following 
conditions:
• If driving on roads with road salt.
• If driving in coastal areas.
• If tar, soot, bird droppings, insects,  or tree sap are stuck to painted surfaces.
• Make sure to follow the instructions  indicated on the automated car wash.
• Fold in the door mirrors.
■Washing the Vehicle
■Using an Automated Car Wash
1Washing the Vehicle
Do not spray water into the air intake vents. It can 
cause a malfunction.
If you need to lift the  wiper arms away from the 
windshield, first set the wiper arms to the 
maintenance position. 2 Changing the Wiper Blade Rubber  P. 500
Air Intake Vents
1Using an Automated Car Wash
When using an automated  car wash that pulls the 
vehicle through with a convey or, make sure vehicle is 
in car wash mode. 2 If you want to keep the transmission in 
(N 
position [car wash mode]  P. 388
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523
Maintenance
Accessories and Modifications
Accessories
When installing accessories, check the following:
• Do not install accessories on the windsh ield. They can obstruct your view and 
delay your reaction to driving conditions.
• Do not install any accessories over areas  marked SRS Airbag, on the sides or backs 
of the front seats, on front or side pillars, or near the side windows. Accessories 
installed in these areas may interfere wi th proper operation of the vehicle’s 
airbags or may be propelled into you or another occupant if the airbags deploy.
• Be sure electronic accessories do not overload  electrical circuits or interfere with 
proper operation of your vehicle.
2 Fuses  P. 557
•Before installing any electronic accessory, have the installer contact an authorized 
Honda Clarity Plug-In Hybrid dealer for assi stance. If possible, have an authorized 
Honda Clarity Plug-In Hybrid dealer inspect the final installation.
1 Accessories and Modifications
Honda Genuine accessor ies are recommended to 
ensure proper operati on on your vehicle.
3WARNING
Improper accessories or modifications can 
affect your vehicle’s handling, stability, and 
performance, and cause a crash in which 
you can be seriously hurt or killed.
Follow all instruction s in this owner’s 
manual regarding accessories and 
modifications.
3WARNING
Use of improperly designed, engineered or 
manufactured high-voltage battery 
assemblies could cause a fire in your 
vehicle.
A vehicle fire could result in a crash or 
injury.
Only use a genuine Honda high-voltage 
battery assembly, or it s equivalent, in your 
vehicle.
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524
uuAccessories and Modifications uModifications
Maintenance
Modifications
Do not modify your vehicle in a manner that  may affect its handling, stability, or 
reliability, or install non-genuine Honda parts  or accessories that may have a similar 
effect.
Even minor modifications to  vehicle systems can affect overall vehicle performance.
Always make sure all equipment is prop erly installed and maintained, and do not 
make any modification to your vehicle or its systems that might cause your vehicle 
to no longer meet federal, state, prov ince, territory, and local regulations.
The on-board diagnostic port (OBD-II/SAE J1962 connector) installed on this vehicle 
is intended to be used with automobile system diagnostic devices or with other 
devices that Honda has approved. Use of  any other type of device may adversely 
affect the vehicle’s electronic systems or  allow them to be compromised, possibly 
resulting in a system malfunction, drained battery, or other unexpected problems.
Do not modify or attempt to repair your  vehicle’s high-voltage hybrid power system 
or otherwise modify vehicle electrical systems. Disassembling or modifying electrical 
equipment can result in a crash or a fire.
If you ever need to replace your vehicle’s high-voltage battery assembly outside of 
warranty coverage, we highly recommend that you only use a genuine Honda high-
voltage battery assembly. Genuine Hond a high-voltage battery assemblies are 
designed to work with your vehicle’s hybrid power system and have been designed, 
engineered and manufactured to avoid ov ercharging situations. Non-genuine high-
voltage battery assemblies may not have be en similarly designed, engineered and 
manufactured, and installation of such assemblies could result in overcharging, fires, 
loss of power, or other conditions that  may increase the likelihood of a crash or 
injury.
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570
Information
Specifications
■Vehicle Specifications
■ Air Conditioning
■ Engine Specifications
ModelCLARITY PLUG-IN HYBRID
No. of Passengers:
Front 2
Rear 3
Total 5
Weights:Gross Vehicle Weight 
Rating See the certification la bel on the driver’s 
doorjamb
Gross Axle Weight 
Rating (Front)See the certification la bel on the driver’s 
doorjamb
Gross Axle Weight 
Rating (Rear)See the certification la bel on the driver’s 
doorjamb
Refrigerant TypeHFO-1234yf (R-1234yf)
Charge Quantity 13.9 – 15.7 oz (395 – 445 g)
Lubricant TypeSE-A2 (POE)
Quantity 8.54 – 10.4 cu-in (140 – 170 cc)
Displacement91.4 cu-in (1,498 cm3)
Spark Plugs NGK DILZKAR7C11H
■ Fuel
■ Washer Fluid
TypeUnleaded gasoline, Pump octane number 
of 87 or higher
Fuel Tank Capacity 7.0 US gal (26.5 L)
Tank Capacity1.43 US qt (1.35 L)
■ Light Bulbs
Headlights (Low Beam)LED
Headlights (High Beam) LED
Front Turn Signal LightsLED
Front Side Marker Lights LED
Parking/Daytime Running LightsLED
Taillights/Rear Side Marker Lights LED
Brake LightsLED
Taillights LED
Back-Up LightsLED
Rear Turn Signal Lights LED
High-Mount Brake LightLED
Rear License Plate Light LED
Interior LightsFront and Rear Map LightsLEDFront and Rear Ambient LightsLEDVanity Mirror Lights1.4 WCenter Console LightLEDGlove Box LightLEDFront Foot Lights*LEDTrunk LightLEDIllumination Lamp 
(inside Charge Lid)LED
* Not available on all models
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Index
582
Index
Index
Numbers
120V AC (AC Level 1)................................ 460
12-Volt Battery Charging System  Indicator ............................................  90, 550
240V AC (AC Level 2) ................................ 463
A
ABS (Anti-lock Brake System) ................... 441
Accessories and Modifications ................. 523
Accessory Power Sockets ..........................  189
Acoustic Vehicle Alerting System ............ 395
Adaptive Cruise Control (ACC) with Low 
Speed Follow ........................................... 402
Indicator .................................................. 100
Additives
Coolant ................................................... 492
Engine Oil ................................................ 486
Washer .................................................... 497
Additives, Engine Oil ................................ 486
Adjusting
Armrest ................................................... 182
Front Seats ..............................................  175
Head Restraints........................................ 178
Mirrors .................................................... 173
Steering Wheel ........................................ 172
Temperature ............................................ 126
Agile Handling Assist ................................ 428
Air Conditioning System (Climate Control  System) .................................................... 193
Changing the Mode ................................ 195 Defrosting the Windshield and 
Windows ...............................................  197
Dust and Pollen Filter...............................  516
Sensors ...................................................  201
Synchronized Mode.................................  198
Using Automatic Climate Control ............  193
Air Pressure .......................................  504, 571
Airbags ........................................................  54
Advanced Airbags .....................................  60
Airbag Care...............................................  68
Driver’s Knee Airbag..................................  61
Event Data Recorder ....................................  0
Front Airbags (SRS) ....................................  57
Indicator..............................................  66, 94
Passenger Front Airbag Off Indicator .........  67
Sensors .....................................................  54
Side Airbags ..............................................  63
Side Curtain Airbags..................................  65
AM/FM Radio ............................................  243
Android Auto ...........................................  280
Anti-lock Brake System (ABS) ..................  441
Indicator....................................................  93
Apple CarPlay ...........................................  277
Armrest .....................................................  182
Audio Remote Controls ...........................  207
Audio System ....................................  204, 210
Adjusting the Sound................................  236
Audio/Information Screen........................  211
Changing the Home Screen Icon Layout ..  219
Changing the Screen Interface ................  233
Closing Apps ...........................................  235 Customizing the Meter ...........................  219
Display Setup ..........................................  237
Error Messages .......................................  284
General Information................................  288
Home Screen ..........................................  225
Limitations for Manual Operation ............  238
Menu Customize ....................................  234
MP3/WMA/AAC .....................................  264
Reactivating ............................................  206
Recommended Devices ...........................  290
Remote Controls .....................................  207
Security Code .........................................  206
Selecting an Audio Source ......................  238
Status Area .............................................  232
Theft Protection ......................................  206
USB Flash Drives......................................  290
USB Port .................................................  205
Voice Control Operation .........................  239
Wallpaper Setup .....................................  223
Audio/Information Screen .......................  211
Authorized Manuals ................................  579
Auto Door Locking/Unlocking ................  149
Automatic Brake Hold .............................  439
Indicator ...........................................  87, 439
Automatic Brake Hold System
Indicator ...........................................  87, 439
Automatic Lighting ..................................  163
Average Fuel Economy ............................  126
Average Fuel Economy Records ..............  129
Average Speed .........................................  127
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