
388
uuWhen Driving uRoad Departure Mitigation (RDM) System
Driving
■Roadway conditions
• Driving on a snowy or wet roadway (obs cured lane marking, vehicle tracks, 
reflected lights, road  spray, high contrast).
• Driving on a road with temporary lane markings.
• Faint, multiple, or varied lane markings  are visible on the roadway due to road 
repairs or old lane markings.
• The roadway has merging, split, or crossing  lines (e.g., such as at an intersection 
or crosswalk).
• The lane markings are extremely  narrow, wide, or changing.
• The vehicle in front of you is  driving near the lane lines.
• The road is hilly or the vehicle is approaching the crest of a hill.
• Driving on rough or unpaved roads, or over bumpy surfaces.
• When objects on the road (curb, guard rail, pylons, etc.) are recognized as white 
lines (or yellow lines).
• Driving on roads with double lines.
■Vehicle conditions
• Headlight lenses are dirty or the  headlights are not properly adjusted.
• The outside of the windshield is streake d or blocked by dirt, mud, leaves, wet 
snow, etc.
• The inside of the windshield is fogged.
• The camera temperature gets too high.
• An abnormal tire or wheel condition (wrong sized, varied size or construction, 
improperly inflated tire, etc.).
• The vehicle is tilted due to a heav y load or suspension modifications.
• When tire chains are installed.
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Continued395
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
The system may automatically shut off and the  ACC indicator will come on under 
certain conditions. Some examples of these conditions  are listed below. Other 
conditions may reduce some of the ACC functions.
2 Front Sensor Camera  P. 383
■Environmental conditions
Driving in bad weather (r ain, fog, snow, etc.).
■Roadway conditions
Driving on a snowy or wet roadway (obscure d lane marking, vehicle tracks, reflected 
lights, road spra y, high contrast).
■Vehicle conditions
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• An abnormal tire or wheel condition (Wrong sized, varied size or construction, 
improperly inflated tire, etc.).
• The camera temperature gets too high.
• The parking brake is applied.
• When the front grille is dirty.
• The vehicle is tilted due to a heavy load or  suspension modifications.
• When tire chains are installed.
■ACC with LSF Conditions and Limitations1ACC with LSF Conditions and Limitations
The radar sensor for ACC with LSF is shared with the 
collision mitigation braking system
TM (CMBSTM).
2 Collision Mitigation Braking SystemTM 
(CMBSTM)  P. 432
You can read about handling information for the 
camera equipped with this system. 2 Front Sensor Camera  P. 383
Always keep the radar sensor cover clean.
Never use chemical solvents or polishing powder for 
cleaning the sensor cover.  Clean it with water or a 
mild detergent.
Do not put a sticker on the radar sensor cover or 
replace the radar sensor cover.
If you need the radar sensor to be repaired, or 
removed, or the radar se nsor cover is strongly 
impacted, turn off the system by pressing the MAIN  
button and take your vehicl e to an authorized Honda 
Clarity Fuel Cell dealer.
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415
uuWhen Driving uTire Pressure Monitoring System (TPMS)
Continued
Driving
Tire Pressure Monitoring System (TPMS)
Instead of directly measuring the pressure  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 pressure in all four tires.
2 Checking Tires  P. 468
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. 468
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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430
uuBraking uAnti-lock Brake System (ABS)
Driving
Anti-lock Brake System (ABS)
Helps prevent the wheels from locking up, a nd helps you retain steering control by 
pumping the brakes rapidly, much faster than you.
The electronic brake distribution (EBD) system, which is part of the ABS, also 
balances the front-to-rear braking distri bution according to vehicle loading.
You should never pump the brake pedal.  Let the ABS work for you by always 
keeping firm, steady pressure on the brake pe dal. This is sometimes referred to as 
“stomp and steer.”
■ABS operation
You may hear an operating noise when the ABS is working. Keep holding the pedal 
firmly down. On dry pavement, you will need  to press on the brake pedal very hard 
before the ABS activates. However, you may  feel the ABS activate immediately if you 
are trying to stop on snow or ice.
ABS may activate when you depress  the brake pedal when driving on:
• Wet or snow covered roads.
• Roads paved with stone.
• Roads with uneven surfaces, such as potholes, cracks, manholes, etc.
When the vehicle speed goes unde r 6 mph (10 km/h), the ABS stops.
■ABS1Anti-lock Brake System (ABS)
NOTICE
The ABS may not function correc tly if you use a tire of 
the wrong size or type.
If the ABS  indicator comes on while driving, there 
may be a problem with the system.
While normal braking will not  be affected, there is a 
possibility that the ABS wi ll not be operating. Have 
your vehicle checked by an  authorized Honda Clarity 
Fuel Cell dealer immediately.
The ABS is not designed  for the purpose of reducing 
the time or distance it takes for a vehicle to stop: It is 
designed to limit brake lo ckup which can lead to 
skidding and loss of steering control.
In the following cases, yo ur vehicle may need more 
distance to stop than a vehicle without the ABS:
•You are driving on rough or uneven road surfaces, 
such as gravel or snow.
•The tires are equipped with tire chains.
The following may be observed with the ABS system:
•Motor sounds coming from the motor 
compartment when the brakes are applied, or 
when system checks are being performed after the 
power system has been turned on and while 
vehicle accelerates.
•Brake pedal and/or the ve hicle body vibration when 
ABS activates.
These vibrations and sounds are normal to ABS 
systems and are no cause for concern.
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437
uuBraking uCollision Mitigation Braking SystemTM (CMBSTM)
Continued
Driving
■Vehicle conditions
• Headlight lenses are dirty or the h eadlights are not properly adjusted.
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• The inside of the windshield is fogged.
• An abnormal tire or wheel condition (wrong  sized, varied size or construction, 
improperly inflated tire, etc.).
• When tire chains are installed.
• The vehicle is tilted due to a heavy load or  suspension modifications.
• The camera temperature gets too high.
• Driving with the parking brake applied.
• When the radar sensor in the front grille gets dirty.
■Detection limitations
• A vehicle or pedestrian suddenly crosses in front of you.
• The distance between your vehicle and the  vehicle or pedestrian ahead of you is 
too short.
• A vehicle cuts in front of you at a  slow speed, and it brakes suddenly.
• When you accelerate rapidly and approach  the vehicle or pedestrian ahead of you 
at high speed.
• The vehicle ahead of you is a motorcycle,  bicycle, mobility scooter or other small 
vehicle.
• When there are animals in front of your vehicle.
• When you drive on a curved, winding or und ulating road that makes it difficult for 
the sensor to properly detect a vehicle in front of you.
• The speed difference between your vehicle an d a vehicle or pedestrian in front of 
you is significantly large.
• An oncoming vehicle suddenly comes in front of you.
• Another vehicle suddenly comes in fr ont of you at an intersection, etc.
• Your vehicle abruptly crosses over in front of an oncoming vehicle.
• When driving through a narrow iron bridge.
• When the lead vehicle suddenly slows down.
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476
uuChecking and Maintaining Tires uWinter Tires
Maintenance
Winter Tires
If driving on snowy or frozen roads, mount all season marked  M+S tires, snow tires, 
or tire chains; reduce speed; and maintain su fficient distance between vehicles when 
driving.
Be particularly careful when operating  the steering wheel or brakes to prevent 
skidding.
Use tire chains, snow tires, or all season ti res when necessary or according to the law.
When mounting, refer to  the following points.
For winter tires:
• Select the size and load ranges that  are the same as the original tires.
• Mount the tires to all four wheels.
For tire chains:
• Install them on the front tires only.
• Because your vehicle has limited tire cl earance, we strongly recommend using the 
chains listed below:
• Follow the chain manufacturer’s instruction when installing. Mount them as 
tightly as you can.
• Check that the chains do not to uch the brake lines or suspension.
• Drive slowly.
Cable-type: SCC Ra dial Chain SC1040
1Winter Tires
NOTICE
Traction devices that are th e wrong size or improperly 
installed can damage your  vehicle’s brake lines, 
suspension, body, and wheels.  Stop driving if they are 
hitting any part  of the vehicle.
When tire chains are mounted, follow the chain 
manufacturer’s instructi ons regarding vehicle 
operational limits.
If your vehicle is equipp ed with summer tires, be 
aware that these tires are not designed for winter 
driving conditions. For more information, contact an 
authorized Honda Clarit y Fuel Cell dealer.
3WARNING
Using the wrong chains, or not properly 
installing chains, can damage the brake 
lines and cause a crash in which you can be 
seriously injured or killed.
Follow all instructions in this owner’s 
manual regarding the selection and use of 
tire chains.
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546
Index
Siri Eyes Free............................................. 269
SiriusXM ® Radio ........................................ 240
Smart Entry System ................................... 135
Snow Tires ................................................. 476
Song By Voice
TM (SBV) .............................. 251
Spare Tire (Optional) ................................ 531
Specifications ............................................ 530
Specified Fuel ....................................  444, 530
SPORT Mode ............................................. 381
SPORT Mode Indicator .......................  97, 381
SRS Airbags (Airbags) .................................  58
Steering Wheel Adjusting ................................................. 169
Stopping .................................................... 440
Summer Tires ............................................ 476
Supplemental Restraint System (SRS) ........  58
Switches (Around the Steering 
Wheel) .............................................  6, 7, 154
Synchronization Mode ............................. 193
System Message Indicator ..........................  95
T
Temperature Sensor................................. 196
Temporary Tire Repair Kit ........................ 491
Time (Setting) ........................................... 132
Tire Pressure Monitoring System 
(TPMS) ...................................................... 415
Indicator ............................................  94, 516
Tires ........................................................... 468
Air Pressure .....................................  469, 531 Chains.....................................................  476
Checking and Maintaining ......................  468
Flat Tire (Puncture) ..................................  490
Inspection ...............................................  468
Labeling ..................................................  469
Regulations .............................................  471
Rotation ..................................................  475
Spare (Optional) ......................................  531
Summer ..................................................  476
Temporary Tire Re
pair Kit ........................  491
Wear Indicators .......................................  473
Winter.....................................................  476
Towing a Trailer .......................................  369
Towing Your Vehicle ................................  369
Emergency ..............................................  526
TPMS (Tire Pressure Monitoring  System) ....................................................  415
Transmission ...............................  34, 374, 375
Creeping .................................................  374
Fluid ........................................................  461
Gear Position Indicator ......................  91, 377
Number...................................................  532
Operating the Shift Button ................  34, 377
Shifting ...................................................  375
Trip Meter .................................................  121
Troubleshooting .......................................  489
Blown Fuse......................................  518, 520
Brake Pedal Vibrates ..................................  39
Buzzer Sounds When Opening Door..........  39
Emergency Towing ..................................  526
Flat Tire/Puncture ....................................  490 Noise When Braking .................................  41
Overheating ............................................  509
Power System Won’t Start ......................  503
Rear Door Won’t Open .....................  39, 144
Warning Indicators....................................  86
Trunk ........................................................  146
Lid ..........................................................  146
Light Bulbs ..............................................  530
Unable to Open ......................................  528
Turn Signals ..............................................  157
Indicators (Instru ment Panel) .....................  96
Turn-by-Turn Directions ..................  122, 129
Turning on the Power .............................  370
Does Not Activate ...................................  503
Jump Starting .........................................  506
U
Under-Floor Storage Area .......................  185
Unlocking the Doors ................................  135
Unlocking the Fron t Doors from the 
Inside .................................................  28, 142
USB Flash Drives ...............................  257, 283
USB Ports ..................................................  199
Using the Smart Entr y with Push Button 
Start System ............................................  135
V
Vanity Mirrors ..............................................  9
Vehicle Identification Number ................  532
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547
Index
Vehicle Monitoring System.........................  2
Vehicle Speed ...........................................  129
Vehicle Stability Assist ® (VSA ®) ...............  412
Off Button ..............................................  413
Off Indicator .....................................  93, 413
System Indicator ...............................  93, 412
Voice Control Operation .........................  232
Audio Commands ...................................  234
Climate Control Commands....................  235
General Commands ................................  235
Music Search Commands ........................  235
On Screen Commands ............................  235
Phone Commands ..................................  234
Useful Commands ..................................  234
Voice Portal Screen .................................  233
Voice Recognition ...................................  232
VSA ® (Vehicle Stability Assist ®) ...............  412
W
Wallpaper .................................................  216
Warning and Info rmation Messages ......  102
Warning Indicator On/Blinking ...............  513
Warning Labels ..........................................  83
Warranties (Warranty Manual provided  separately) ..............................................  535
Watts ........................................................  530
Wear Indicators (Tire) ..............................  473
Wi-Fi Connection .....................................  267
Window Washers .....................................  162
Adding/Refilling Fluid ..............................  462 Switch .....................................................  162
Windows (Opening and Closing) .............  152
Windshield Cleaning ..........................................  481, 484
Defrosting/Defogging ..............................  192
Washer Fluid ...........................................  462
Wiper Blades ...........................................  465
Wipers and Washers ................................  162
Winter Tires Snow Tires ...............................................  476
Tire Chains ..............................................  476
Wipers and Washers .................................  162
Checking and Replacing Wiper Blades .....  465
WMA .........................................................  257
Worn Tires .................................................  468
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