
33
Quick Reference Guide
Refueling (P 454)
Fuel recommendation: Unleaded gasoline, pump octane number 87 or higher required
Fuel tank capacity: 7.0 US gal (26.5 L)
aPress the fuel fill door release button.
uPlease Wait  appears for a few seconds on the 
driver information interface.
bWhen the message changes to  Ready, the fuel 
fill door automatically opens.
cTurn the fuel fill cap slowly to remove the cap.
dPlace the cap in the holder on the fuel fill door.
eAfter refueling, screw the cap back on until it 
clicks at least once. Fuel Fill Door Release 
Button
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455
uuRefueling uHow to Refuel
Continued
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 info rmation 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 unti l 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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564
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. 455
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.
1 When You Cannot Unlo ck 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. 549
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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582
Index
Collision Mitigation Braking SystemTM 
(CMBSTM) .................................................. 442
Console Compartment ............................. 186
Control Box ...............................................  464
Controls ..................................................... 135
Coolant (Engine) ....................................... 490
Adding to the Radiator ............................ 491
Adding to the Reserve Tank ..................... 490
Overheating............................................. 544
Coolant (High Voltage Battery and  Inverter) ................................................... 492
Creeping (Transmission) ........................... 383
Cup Holders ...............................................  187
Customer Service Information ................. 578
Customized Features ........................  133, 306
D
Daytime Running Lights ........................... 165
Dead Battery (12-Volt) ............................. 541
Deceleration Paddle Selector ................... 392
Deceleration Paddle Sele ctor Indicator .......  91
Defrosting the Windshield and  Windows .................................................. 197
Devices that Emit Radio Waves ................ 571
Dimming Headlights ...............................................  162
Rearview Mirror ....................................... 173
Dipstick (Engine Oil) ................................. 485
Directional Signals (Turn Signal) .............. 161
Display Button .......................................... 211 Door Mirrors
.............................................  174
Doors .........................................................  137
Auto Door Locking ..................................  149
Auto Door Unlocking ..............................  149
Door Open Message..................................  46
Keys ........................................................  137
Locking/Unlocking the Doors from the  Inside ..............................................  25, 146
Locking/Unlocking the Doors from the  Outside .................................................  139
Lockout Prevention System ......................  145
DOT Tire Quality Grading ........................  504
Drive Cycle Score/Lifetime Points ............  131
Driver Information Interface ...................  124
Driver’s Knee Airbag ..................................  61
Driving ......................................................  371
Braking ...................................................  434
Shifting Gear ...........................................  384
Transmission ...........................................  383
Turning on the Power..............................  378
Driving Position Memory System ............  170
Dust and Pollen Filter ...............................  514
E
Eco Assist® System ......................................  20
Eco Drive Display ......................................  130
ECON Mode ..............................................  390
Elapsed Time .............................................  127
Electric Power Steering (EPS) System
Indicator....................................................  94 Electronic Stability Control (ESC)
............  425
Emergency ................................................  563
Emissions Testing  (Readiness Codes) ......  573
Energy Flow Screen ..................................  215
Engine
Coolant ..................................................  490
Oil ..........................................................  484
Engine Coolant ........................................  490
Adding to the Radiator ...........................  491
Adding to the Reserve Tank ....................  490
Overheating ............................................  544
Engine Oil .................................................  484
Adding ...................................................  486
Checking ................................................  485
Recommended Engine Oil .......................  484
EPS (Electric Power Steering) System ........  94
EV Indicator ................................................  89
Exhaust Gas Hazard (Carbon Monoxide) ..  82
Expanded View Driver’s Mirror ...............  174
Exterior Care (Cleaning) ..........................  517
Exterior Mirrors ........................................  174
F
Features....................................................  203
Filters Dust and Pollen.......................................  514
Oil ..........................................................  487
Flat Tire .....................................................  524
Floor Mats ................................................  516
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