
404
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
Pull the electric parkin g brake switch up gently 
and securely. u The parking brake and brake system 
indicator (red) comes on.
■To release
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 moto r 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, or set the power 
mode to OFF. 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. 498
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 come 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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uuBraking uBrake System
406
Driving
Your vehicle is equipped with disc brakes at all four wh eels. The brake assist system 
increases the stopping force when you  depress the brake pedal hard in an 
emergency situation. The an ti-lock brake system (ABS) helps you retain steering 
control when braking very hard.
2 Brake Assist System  P. 410
2 Anti-lock Brake System (ABS)  P. 409
■Foot Brake1Foot Brake
Check the brakes after driving through deep water, 
or if there is a buildup of  road surface water. If 
necessary, dry the brakes by  lightly depressing the 
pedal several times.
If you hear a continuous metallic friction sound when 
applying the brakes, this is caused by the brake wear 
indicator rubbing on the brake  rotor and indicates that 
the brake pads need to be replaced. Have the vehicle 
checked by an authorized  Honda Clarity Electric 
dealer. If you hear only an occasional squeak or squeal 
when you initially apply the  brake pedal, this may be 
normal and caused by high frequency vibration of the 
brake pads against the rotating brake disc.
Applying constant pressure  to the brakes while going 
down a long hill can cause  the brakes to heat up, 
resulting in a loss of stopping power. Therefore, 
when descending a long hill , release the accelerator 
pedal and allow regenerati ve braking to slow the 
vehicle down. To adjust the  rate of deceleration, use 
the deceleration paddle selector.
When the high voltage battery is recharging, 
regenerative braking  may not be possible.
2 POWER/CHARGE Gauge  P. 115
2 High Voltage Battery Charge Level Gauge  
P. 116
2 Deceleration Paddle Selector  P. 362
Do not rest your foot  on the brake pedal while 
driving, as it will lightly  apply the brakes and cause 
them to lose effectiveness  over time and reduce pad 
life. It will also conf use drivers behind you.
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409
uuBraking uAnti-lock Brake System (ABS)
Driving
Anti-lock Brake System (ABS)
Helps prevent the wheels from locking up,  and helps you retain steering control by 
pumping the brakes rapidly, much faster than you.
The electronic brake distribu tion (EBD) system, which is part of the ABS, also 
balances the front-to-rear braking distribution according to vehicle loading.
You should never pu mp 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 ne ed to press on the brake pedal very hard 
before the ABS activates. Ho wever, you may feel the ABS  activate immediately if you 
are trying to stop on snow or ice.
ABS may activate when you depres s the brake pedal when driving on:
• Wet or snow covered roads.
• Roads paved with stone.
• Roads with uneven surf aces, 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 will  not operating. Have your 
vehicle checked by an authorized Honda Clarity 
Electric 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 lockup 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 snow 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 is accelerates.
•Brake pedal and/or the ve hicle body vibration when 
ABS activates.
These vibrations and sou nds are normal to ABS 
systems and are no cause for concern.
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uuBraking uCollision Mitigation Braking SystemTM (CMBSTM)
412
Driving
■When the system activates
At system’s earliest collision alert  stage, you can change the distance ( Long/
Normal /Short) between vehicles at which aler ts will come on through audio/
information screen setting options.
2 Customized Features P. 280
■Vibration alert on the steering wheel
When a potential collision to an oncoming detected vehicle is determined, the 
system alerts you with rapid vibration on th e steering wheel, in addition to visual and 
audible alerts. u Take appropriate action to prevent a co llision (apply the brakes, operate the 
steering wheel, etc.).
1 When the system activates
The camera in the CMBS
TM is also designed to detect 
pedestrians.
However, this pedestrian  detection feature may not 
activate or may not detect  a pedestrian in front of 
your vehicle under certain conditions.
Refer to the ones indicating  the pedestrian detection 
limitations from the list. 2 CMBS
TM Conditions and Limitations  P. 415
The system provides visual, audible and tactile alerts of a possible collision, and 
stops if the collision is avoided.
u Take appropriate action to prevent a collision (apply the brakes, change 
lanes, etc.)
Beep Visual Alerts
Audible Alert
Tactile Alert
1 Vibration alert on the steering wheel
Vibration alert function is  disabled when the electric 
power steering (EPS) system indicator comes on. 2 Electric Power Steering (EPS) System 
Indicator  P. 88
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416
uuBraking uCollision Mitigation Braking SystemTM (CMBSTM)
Driving
■Vehicle conditions
• Headlight lenses are dirty or the  headlights are not properly adjusted.
• The outside of the windshie ld 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 heav y 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 cu rved, winding or undulating 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 front 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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447
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
■Maintenance Service Items
Maintenance Minder Message
System Message 
Indicator
Maintenance Item Code(s)
CODEMaintenance Items
0
●Inspect front and rear brakes●Check expiration date for Temporary Tire Repair Kit●Inspect these items: • Tie rod ends, steering gear box, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines (including ABS/VSA)
• All fluid levels and condition of fluids
• Stay RR, RR Subframe
• Under body battery cover
1●Rotate tires
*1: 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.
*2: 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 31,250 miles.
*3: If a Maintenance Minder message does not appear more than 3 years after the display for item 7 is  reset, change the brake fluid and replace air cleaner element every 3 years.
CODEMaintenance Items
2
●Replace dust and pollen filter*1
3●Replace transmission fluid*2
7●Replace brake fluid*3
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467
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  sufficient distance between vehicles when 
driving.
Be particularly careful wh en operating the steering wheel or brakes to prevent 
skidding.
Use tire chains, snow  tires, or all season tires 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 clea rance, we strongly recommend using the 
chains listed below:
• Follow the chain manufactur er’s instruction when installing. Mount them as 
tightly as you can.
• Check that the chains do not touch the brake lines or suspension.
• Drive slowly.
Cable-type: SCC Radial 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 equipped with summer tires, be 
aware that these tires are not designed for winter 
driving conditions. For more information, contact an 
authorized Honda Clarity Electric 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 instruction s in this owner’s 
manual regarding the selection and use of 
tire chains.
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