
uuWhen Driving uTurning on the Power
380
Driving
You can turn the power system off when  the vehicle is completely stopped.
1. Put the transmission into 
(P.
2. Press the  POWER button.
■Stopping the Power System1Turning on the Power
Bring the smart entry remote close to the  POWER 
button if the battery in the smart entry remote is 
weak.
2 If the Smart Entry Remote Battery is Weak  
P. 539
The power system may not activate if the smart entry 
remote is subjected to strong radio waves.
Do not hold the  POWER button to start the power 
system.
If the power system does not  start, wait at least 30 
seconds before trying again.
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Continued407
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
■There is no vehicle ahead
Your vehicle maintains the set speed without 
having to keep your foot on the brake or 
accelerator pedal.
If there previously was a vehicle detected 
ahead that kept your vehicle from traveling at 
the set speed, ACC with LSF accelerates your 
vehicle to the set speed, and then maintains it.
■When you depress the accelerator pedal
You can temporarily increase the vehicle speed . In this case, there is no audible or 
visual alert even if a vehicl e is in the ACC with LSF range.
ACC with LSF stays on unless you cancel it . Once you release the accelerator pedal, 
the system resumes an appropriate speed fo r keeping the following-interval while a 
vehicle ahead is within the ACC with LSF range.
■A vehicle detected ahead  is within ACC with LSF range and slows to a stop
Your vehicle also stops, automatically. The 
Stopped  message appears on the driver 
information interface.
When the vehicle ahead  of you starts again, 
the vehicle icon on the driver information 
interface blinks. If you press the  RES/+ or 
−/SET  button, or depress the accelerator 
pedal, ACC with LSF operates again within the 
prior set speed.
1 When in Operation
Limitations
You may need to use the brake to maintain a safe 
interval when using ACC wi th LSF. Additionally, ACC 
with LSF may not work properly under certain 
conditions. 2 ACC with LSF Conditions and Limitations  
P. 408
3WARNING
Exiting a vehicle that has been stopped 
while the ACC with LSF system is operating 
can result in the ve hicle moving without 
operator control.
A vehicle that moves without operator 
control can cause a crash, resulting in 
serious injury or death.
Never exit a vehicle when the vehicle is 
stopped by ACC with LSF.
A vehicle icon with dotted-line 
contour appears on the driver 
information interface
1 When you depress the accelerator pedal
While the accelerator pedal is depressed, the system 
does not apply the brakes to keep the following 
interval, as well as the  BRAKE message on the driver 
information interface does not appear.
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428
uuWhen Driving uTire Pressure Monitoring System (TPMS)
Driving
Tire Pressure Monitoring System (TPMS)
Instead of directly measuring the pressu re in each tire, the TPMS on this vehicle 
monitors and compares the rolling radius  and rotational characteristics of each 
wheel and tire while you are driving to determine if one or more tires are 
significantly under-inflated. This will caus e the low tire pressure/TPMS indicator to 
come on and a message to appear on  the driver information interface.
You must start TPMS calibration every time you:
• Adjust the pressure in one or more tires.
• Rotate the tires.
• Replace one or more tires.
Before calibrating the TPMS:
• Set the cold tire pressu re in all four tires.
2Checking Tires  P. 501
Make sure:
•The vehicle is at a complete stop.
• The gear position is in 
(P.
• The power mode is in ON.
■TPMS Calibration
1Tire Pressure Monitoring System (TPMS)
The system does not monitor the tires when driving 
at low speed.
Conditions such as low  ambient temperature and 
altitude change directly a ffect tire pressure and can 
trigger the low tire pressure/TPMS indicator to come on.
Tire pressure checked and inflated in:
•Warm weather can beco me under-inflated in 
colder weather.
•Cold weather can become  over-inflated in warmer 
weather.
The low tire pressure/TPMS indicator will not come 
on as a result of over inflation.
The TPMS may not function pr operly if tire type and 
size are mixed. Make sure to use the same size and 
type of tire. 2 Checking and Maintaining Tires  P. 501
The low tire pressure/TPMS indicator may come on 
with a delay or may not come on at all when:
•You rapidly accelerate, decelerate, or turn the 
steering wheel.
•You drive on snowy or slippery roads.•Tire chains are used.
The low tire pressure/TPMS indicator may come on 
under the following conditions:
•There is a heavier and uneve n load on the tires than 
the condition at calibration.
•Tire chains are used.
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434
Driving
Braking
Brake System
Use the parking brake to keep the vehicle stationary when parked. When the 
parking brake is applied, you can manually or automatically release it.
■To apply
The electric parking brake can be applied any 
time the vehicle has battery, no matter which 
position the power mode is in.
Pull the electric parkin g brake switch up gently 
and securely.
u The parking brake and brake system 
indicator (red) comes on.
■To release
The power mode must be in ON in order to 
release the electric parking brake.
1. Depress the brake pedal.
2. Press the electric parking brake switch.
u The parking brake and brake system 
indicator (red) goes off.
Manually releasing the parking brake using 
the switch helps your ve hicle start slowly and 
smoothly when facing down hill on steep hills.
■Parking Brake1 Brake System
When you depress the brak e pedal, you may hear a 
whirling sound from the engine  compartment. This is 
because the brake system is  in operation, and it is 
normal.
1 Parking Brake
You may hear the electric parking brake system 
motor operating from the re ar wheel area when you 
apply or release the parki ng brake. This is normal.
The brake pedal may slightly  move due to the electric 
parking brake system opera tion when you apply or 
release the parking br ake. This is normal.
You cannot apply or  release the parking brake if the 
12-volt battery goes dead. 2 Jump Starting  P. 541
If you pull up and hold the electric parking brake 
switch while driving, the brakes on all four 
wheels are applied by the electric servo brake 
system until the vehicle comes to a stop. The 
electric parking brake then applies, and the 
switch should be released.
Electric Parking 
Brake Switch
Electric Parking 
Brake Switch
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Continued435
uuBraking uBrake System
Driving
■To release automatically
Depressing the accelerator pedal releases the parking brake.
Use the accelerator pedal to release the  brake when you are starting the vehicle 
facing uphill, or in a traffic jam.
Gently depress the accelerator pedal.
When on a hill, it may require more 
accelerator input to release.u The parking brake and brake system 
indicator (red) goes off.
You can release the parking  brake automatically when:
• You are wearing the driver’s seat belt.
• The power system is on.
• The transmission is not in 
(P or (N.
1Parking Brake
In the following situations, the parking brake 
automatically operates.
•When the vehicle stops more than 10 minutes 
while ACC with LSF is activated.
•When the driver’s seat belt is unfastened while your 
vehicle is stopped automatically by ACC with LSF.
•When the power system is turned off while ACC 
with LSF is activated.
•When the vehicle stops with the automatic brake 
hold system activated for more than 10 minutes.
•When the driver’s seat  belt is unfastened while 
your vehicle is stopped  and brake hold is applied.
•When the power system is turned off while brake 
hold is applied.
•When there is a problem with the Brake Hold 
System.
If the parking brake cannot be released 
automatically, release it manually.
The parking brake may not be released automatically 
while the following  indicators are on:
•POWER SYSTEM indicator•Transmission system indicator
•Parking brake and brake system indicator (amber)
•VSA® system indicator•ABS  indicator
•Supplemental restraint system indicator
Accelerator Pedal
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uuBraking uBrake System
438
Driving
Keeps the brake applied after releasing the br ake pedal until the accelerator pedal is 
pressed. You can use this system while th e vehicle is temporarily stopped, like at 
traffic lights and in heavy traffic.
■Automatic Brake Hold1 Automatic Brake Hold
3WARNING
Activating the automatic brake hold system 
on steep hills or slippery roads may still 
allow the vehicle to  move if you remove 
your foot from the brake pedal.
If a vehicle unexpectedly moves, it may 
cause a crash resulting in serious injury or 
death.
Never activate the automatic brake hold 
system or rely on it  to keep a vehicle from 
moving when stopped on a steep hill or 
slippery roads.
3WARNING
Using the automatic brake hold system to 
park the vehicle may result in the vehicle 
unexpectedly moving.
If a vehicle moves unexpectedly, it may 
cause a crash, resulting in serious injury or 
death.
Never leave the vehicle when braking is 
temporarily kept by automatic brake hold 
and always park the vehicle by putting the 
transmission in 
( P and applying the parking 
brake.
■Turning on the system
Fasten your seat belt 
properly, then start the 
power system. Press the 
automatic brake hold 
button.
●The automatic brake 
hold system indicator 
comes on. The system 
is turned on.
■Activating the system
Depress the brake pedal 
to come to a complete 
stop. The transmission 
must be in 
( D or (N.●The automatic brake 
hold indicator comes 
on. Braking is kept for 
up to 10 minutes.
●Release the brake 
pedal after the 
automatic brake hold 
indicator comes on.
■Canceling the system
Depress the accelerator 
pedal while the 
transmission is in 
( D. 
The system is canceled 
and the vehicle starts to 
move.
●The automatic brake 
hold indicator goes 
off. The system 
continues to be on.
Accelerator PedalBrake PedalAutomatic Brake 
Hold Button
Goes 
Off
Comes 
OnOn On
Comes 
On
Comes 
On
U.S.
Canada
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442
uuBraking uCollision Mitigation Braking SystemTM (CMBSTM)
Driving
Collision Mitigati on Braking SystemTM (CMBSTM)
Can assist you when there is a possibility of your vehicle colliding with a vehicle or a 
pedestrian detected in  front of yours. The CMBSTM is designed to alert you when a 
potential collision is determined, as well as to reduce your vehicle speed to help 
minimize collision severity when a collision is deemed unavoidable.
■How the system works
1 Collision Mitigation Braking SystemTM (CMBSTM)
Important Safety Reminder
The CMBS
TM is designed to reduce the severity of an 
unavoidable collision. It do es not prevent a collision 
nor stop the vehicle automati cally. It is still your 
responsibility to  operate the brake  pedal and steering 
wheel appropriately acco rding to the driving 
conditions.
The CMBS
TM may not activate or may not detect a 
vehicle in front of y our vehicle under certain 
conditions: 2 CMBS
TM Conditions and Limitations  P. 446
You can read about handling information for the 
camera equipped with this system. 2 Front Sensor Camera  P. 396
Be careful not to severely  impact the radar sensor 
cover.
1 How the system works
Rapid vibrations on the  steering wheel alert you 
when the your vehicle speed is between 19 and 62 
mph (30 and 100 km/h) with an oncoming vehicle 
detected in front of you.
When the CMBS
TM activates, it  may automatically 
apply the brake. It will be  canceled when your vehicle 
stops or a potential coll ision is not determined.
The radar sensor is 
behind the emblem.
The camera is 
located behind 
the rearview 
mirror.
The system starts monitoring the roadway ah ead when your vehicle speed is about 3 
mph (5 km/h) and there is a vehicle in front of you.
When to use
The CMBSTM activates when:●The speed difference between your vehicle and a vehicle or pedestrian detected 
in front of you becomes about 3 mph (5 km/h) and over with a chance of a 
collision.
●Your vehicle speed is about 62 mph (100 km/h) or less and there is a chance of a 
collision with an oncoming detected vehicle or a pedestrian in front of you.
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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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