
452
uuRefueling uHow to Refuel
Driving
How to Refuel
1. Stop your vehicle with the service station 
pump on the left side of the vehicle in the 
rear.
2. Put the transmission into 
(P.
3. Turn the power system off.
4. Press the fuel fill door release button.
u Please Wait  appears for a few seconds 
on the driver information interface.
5. When the message changes to  Ready, the 
fuel fill door automatically opens.
u You can now unscrew the fuel cap and 
start refueling.
6. Remove the fuel fill cap slowly. If you hear a 
release of air, wait unt il this stops, then turn 
the knob slowly to open the fuel fill cap.
1 How to Refuel
This vehicle has a pressurized fuel system.
When the fuel vapor pressure inside the fuel tank is 
high, it takes about 10 seconds  for the vehicle to vent 
the fuel tank. Once the pressure is vented, the driver 
information interface changes from  Please Wait to 
Ready.
If the filler nozzle keeps tu rning off when the tank is 
not full, there may be a problem with the pump's fuel 
vapor recovery system. Try fi lling at another pump. If 
this does not fix the problem, consult an authorized 
Honda Clarity Plug-In  Hybrid dealer.
Do not continue to add fuel  after the filler nozzle has 
automatically stopped. Addi tional fuel can exceed 
the full tank capacity.
The filler nozzle automatically stops to leave space in 
the fuel tank so that fuel  does not overflow as a result 
of changes in air temperature.
3WARNING
Gasoline is highly flammable and explosive. 
You can be burned or seriously injured 
when handling fuel.
• Stop the engine, and  keep heat, sparks, 
and flame away.
• Handle fuel only outdoors.
• Wipe up spills immediately.
Fuel Fill Door 
Release Button
Fuel Fill Cap
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477
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
■Maintenance Service Items1Maintenance Service Items
•Adjust the valves during services A, 0, 1, 2, or 3 if 
they are noisy.
Maintenance Minder Message
System Message 
Indicator
Sub Items
Main Item
U.S. models
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset, 
change the engine oil every year.
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A
●Replace engine oil*1 and oil filter
0●Inspect front and rear brakes●Check expiration date for Temporary Tire Repair Kit●Inspect these items: • Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines  (including ABS/VSA)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
•Stay RR, RR Subframe
• Under body battery cover
*2: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and 
from diesel-powered vehicles, replace the dust and pollen filter every 15,000 miles (24,000 km).
*3: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures. 
This requires transmission fluid changes more frequently than recommended by the Maintenance 
Minder. If you regularly drive your vehicle under these conditions, have the transmission fluid changed 
every 47,500 miles (75,000 km) or 3 years.
*4: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is  reset, change the brake fluid every 3 years.
*5: If you drive in dusty conditions, replace the air cleaner element every 15,000 miles (24,000 km).
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace dust and pollen filter*2
3●Replace transmission fluid*3
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*4
8●Replace air cleaner element*5
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478
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
1Maintenance Service Items
•Adjust the valves during services A, 9, 1, 2, or 3 if 
they are noisy.
Canadian models
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset, 
change the engine oil every year.
*2: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and  from diesel-powered vehicles, replace the dust and pollen filter every 24,000 km (15,000 miles).
*3: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures. 
This requires transmission fluid changes more frequently than recommended by the Maintenance 
Minder. If you regularly drive your vehicle under these conditions, have the transmission fluid changed 
every 75,000 km (47,500 miles) or 3 years.
*4: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is  reset, change the brake fluid every 3 years.
*5: If you drive in dusty conditions, replace the air cleaner element every 24,000 km (15,000 miles).
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A
●Replace engine oil*1 and oil filter
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace dust and pollen filter*2
3●Replace transmission fluid*3
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*4
8●Replace air cleaner element*5
9●Service front and rear brakes●Check expiration date for Temporary Tire Repair Kit●Inspect these items: • Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines (including ABS/VSA)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
•Stay RR, RR Subframe
• Under body battery cover
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508
Maintenance
12-Volt Battery
Checking the 12-Volt Battery
Check the battery condition monthly. Look at 
the test indicator window and check the 
terminals for corrosion.
The battery condition is monitored by the 
sensor on the negative terminal. If there is a 
problem with the sensor, the warning 
message on the driver information interface 
will let you know. Have your vehicle checked 
by an authorized Honda  Clarity Plug-In Hybrid 
dealer.
If your vehicle’s battery is disconnected or goes dead:
• The audio system is disabled.
2 Reactivating the audio system  P. 206
•The clock resets.
2 Clock  P. 136
•The vehicle cannot be charged. After reconnecting the batte ry, turn the power 
system on, then turn it off.
Confirm that charging is possible.
2 Turning on the Power  P. 376
2 Charging P. 454
•
The immobilizer system needs to be reset.
2 Immobilizer System Indicator  P. 97
112-Volt Battery
WARNING:  Battery post, terminals, 
and related accessories contain lead 
and lead compounds.
Wash your hands after handling.
The test indicator’s color in formation is on the battery.
When you find corrosion, cl ean the battery terminals 
by applying a baking powder and water solution. 
Clean the terminals with a damp towel. Cloth/towel 
dry the battery. Coat the terminals with grease to 
help prevent future corrosion.
3WARNING
The battery gives off explosive hydrogen 
gas during normal operation.
A spark or flame can cause the battery to 
explode with enough force to kill or 
seriously hurt you.
When conducting any battery 
maintenance, wear prot ective clothing and 
a face shield, or have a skilled technician do 
it.
Test Indicator Window
Canadian models only
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562
Handling the Unexpected
When You Cannot Unlock the Fuel Fill Door
■What to Do When Unable to Unlock the Fuel Fill Door
If you cannot open the fuel fill door, use the following procedure. 1.Open the trunk and pull off the left inside 
cover.
2. Pull the release lever towards you.
u The release lever opens the fuel fill door 
when it is pulled.
3. Slowly remove the fuel fill cap by turning it 
to the left. If you hear a release of pressure, 
wait until it stops, then continue to slowly 
remove the fuel fill cap.
2 How to Refuel  P. 452
4.Add fuel very slowly.
u The automatic fuel tank vent valve does 
not operate when the fuel fill door is 
opened manually. Trying to add fuel too 
rapidly when the vent valve is closed will 
cause fuel vapors to be pushed out the 
filler pipe and can cause a small amount 
of liquid fuel to be spilled onto the 
ground.
1When You Cannot Unlock the Fuel Fill Door
The automatic fuel tank ve nt does not operate when 
using the manual fuel door  release. Gradually release 
pressure by slowly turning th e fuel fill cap to the left. 
If you hear a release of fuel  vapors, wait until it stops, 
then continue to slowly remove the fuel fill cap.
The malfunction indicator  lamp may come on when 
driving after you have refueled by manually opening 
the fuel fill door.
2 If the Malfunction Indicator Lamp Comes 
On or Blinks  P. 547
After taking these steps, contact an authorized 
Honda Clarity Plug-In Hybrid dealer to have the 
vehicle checked.
3WARNING
Gasoline vapors in tank are under pressure.
• If using the manual fuel door release, 
open the cap slowly to gradually release 
pressure.
• Stop the engine, and keep all sparks, 
heat, and flame away.
Release Lever
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566
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 U.S.:4,965 lbs (2,252 kg)Canada:2,252 kgGross Axle Weight 
Rating (Front)U.S.:2,579 lbs (1,170 kg)Canada:1,170 kgGross Axle Weight 
Rating (Rear)U.S.:2,460 lbs (1,116 kg)Canada:1,116 kg
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 LightLEDCharge Indicator LightLED
* Not available on all models
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