
395
uuWhen Driving uVehicle Stability Assist (VSA ®), aka Electronic Stability Control (ESC), System
Continued
Driving
Vehicle Stability Assist (VSA ®), aka Electronic 
Stability Control (ESC), System
VSA ® helps to stabilize the vehicle during corn ering if the vehicle turns more or less 
than what was intended. It also assists in  maintaining traction on slippery surfaces. 
It does so by regulating motor out put and selectively applying the brakes.
When VSA ® activates, you may notice that the 
motor do not respond to the accelerator. You 
may also notice some noise from the hydraulic 
system. You will also  see the indicator blink.
■VSA® Operation
1 Vehicle Stability Assist (VSA ®), aka Electronic Stability Control 
(ESC), System
The VSA ® may not function properl y if tire type and 
size are mixed. Make sure to use the same size and 
type of tire, and the air pressures as specified.
When the VSA ® system indicator comes on and stays 
on while driving, there may be a problem with the 
system. While this may not interfere with normal 
driving, have your vehicle checked by an authorized 
Honda Clarity Electric  dealer immediately.
The indicators for the Vehicle Stability Assist (VSA ®) 
System, Vehicle Stability Assist (VSA ®) OFF, low tire 
Pressure/TPMS and Collision Mitigation Braking 
System
TM (CMBSTM) may come on along with a 
message in the driver information interface after re-
connecting the 12-volt battery. Drive a short distance 
at more than 12 mph (20 km/h). The indicator should 
go off. If it does not, have your vehicle checked by an 
authorized Honda Clarity Electric dealer.
VSA ® cannot enhance stability in all driving situations 
and does not control the entire braking system. You 
still need to drive and corner at speeds appropriate 
for the conditions and alwa ys leave a sufficient 
margin of safety.
The main function of the VSA ® system is generally 
known as Electronic Stability Control (ESC). The 
system also includes a  traction control function.VSA® System 
Indicator
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443
uuBefore Performing Maintenance uSafety When Performing Maintenance
Maintenance
Safety When Performing Maintenance
Some of the most important safe ty precautions are given here.
However, we cannot warn you of every  conceivable hazard that can arise in 
performing maintenance. Only you can decide whether you should perform a given 
task.
• To reduce the possibility of fire or explos ion, keep cigarettes, sparks, and flames 
away from the 12-volt battery and all High Voltage system related parts.
• Never leave rags, towels, or other flammable objects under the hood.
u Heat from the motor or the surrounding  parts can ignite them, causing a fire.
• To clean parts, use a co mmercially available degreaser or parts cleaner, not 
gasoline.
• Wear eye protection and pr otective clothing when working with the 12-volt 
battery or compressed air.
• The vehicle must be in a stationary condition.
u Make sure your vehicle is parked on le vel ground, the parking brake is set, and 
the power system is turned off.
• Be aware that hot parts can burn you.
u Make sure to let the power system cool thoroughly before touching vehicle 
parts.
• Be aware that moving parts can injure you.
u Do not activate the power system unless instructed to do so.
Keep your hands and limbs away from moving parts.
■Maintenance Safety
■Vehicle Safety
1Safety When Performing Maintenance
3WARNING
Improperly maintaining this vehicle or 
failing to correct a pr oblem before driving 
can cause a crash in which you can be 
seriously hurt or killed.
Always follow the inspection and 
maintenance recommendations according 
to the schedules in  this owner’s manual.
3WARNING
Failure to properly follow maintenance 
instructions and prec autions can cause you 
to be seriously hurt or killed.
Always follow the procedures and 
precautions in this owner’s manual.
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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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459
Maintenance
Checking and Maintaining Tires
Checking Tires
To safely operate your vehicle, your tires must be of the proper type and size, in 
good condition with adequate  tread, and properly inflated.
■Inflation guidelines
Properly inflated tires provid e the best combination of hand ling, tread life, and comfort. 
Refer to the driver’s doorjamb label or spec ifications page for the specified pressure.
Underinflated tires wear unevenly, advers ely affect handling and energy economy, 
and are more likely to fail from overheating.
Overinflated tires make your vehicle ride ha rshly, are more prone to road hazards, 
and wear unevenly.
Every day before you drive, look at each of  the tires. If one looks lower than the 
others, check the pressure with a tire gauge.
At least once a month or before long trips , use a gauge to measure the pressure in 
all tires. Even tires in good condition can lose 1–2 psi (10–20 kPa, 0.1–0.2 kgf/cm
2) 
per month.
■Inspection guidelines
Every time you check inflation, also  examine the tires and valve stems.
Look for:
• Bumps or bulges on the side or in the tr ead. Replace the tire if you find any cuts, 
splits, or cracks in the side of the tire . Replace it if you see fabric or cord.
• Remove any foreign objects  and inspect for air leaks.
• Uneven tread wear. Have an authorized  Honda Clarity Electric dealer check the 
wheel alignment.
• Excessive tread wear.
2 Wear Indicators  P. 464
•Cracks or other damage around valve stem.
1Checking Tires
Measure the air pressure when tires are cold. This 
means the vehicle has been parked for at least three 
hours, or driven less than 1 mile (1.6 km). If 
necessary, add or releas e air until the specified 
pressure is reached.
If checked when hot, tire pressure can be as much as 
4–6 psi (30–40 kPa, 0.3–0.4 kgf/cm
2) higher than if 
checked when cold.
Whenever tire pressure is adjusted, you must 
calibrate the TPMS. 2 TPMS Calibration P. 398
Have an authorized Honda  Clarity Electric dealer 
check the tires if you feel a consistent vibration while 
driving. New tire s and any that have been removed 
and reinstalled  should be properly balanced.
3WARNING
Using tires that are excessively worn or 
improperly inflated can cause a crash in 
which you can be seriously hurt or killed.
Follow all instruction s in this owner’s 
manual regarding tire inflation and 
maintenance.
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471
Maintenance
Climate Control System Maintenance
Air Conditioning
To ensure proper and safe operation, the Society of Automotive Engineers (SAE 
J2845) recommends that the refrigerant system only be serviced by trained and 
certified technicians.
Never repair or replace the air conditio ning evaporator (cooling coil) with one 
removed from a used or salvaged vehicle.
New replacement mobile air conditioning  evaporators must be certified (and 
labeled) as meeting SAE Standard J2842.
Dust and Pollen Filter
The climate control system is equipped with  a dust and pollen filter that collects 
pollen, dust, and other debris in the air. The Maintenance MinderTM messages will let 
you know when to  replace the filter.
We recommend that you replace the dust an d pollen filter sooner when using your 
vehicle in areas with high concentrations of dust.
1 Climate Control System Maintenance
NOTICE
Vented refrigerant is harmful to the environment.
To avoid refrigerant from  venting, never replace the 
evaporator with one re moved from a used or 
salvaged vehicle.
Refrigerant in your  vehicle’s air conditioning system is 
flammable and can be igni ted during servicing if 
proper procedures  are not followed.
The air conditioner labe l is found under the hood:
2 Safety Labels  P. 78
2 Specifications  P. 520
1Dust and Pollen Filter
If the airflow from the climate control system 
deteriorates noticeably, and the windows fog up 
easily, the filter may need to be replaced. Please 
contact an authorized Honda  Clarity Electric dealer 
for replacement.
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474
uuCleaning uExterior Care
Maintenance
Exterior Care
Dust off the vehicle body after you drive. Re gularly inspect your vehicle for scratches 
on painted surfaces. A scratch on a painted  surface can result in body rust. If you 
find a scratch, pr omptly repair it.
Wash the vehicle regularly. Wash more  frequently when driving in the following 
conditions:
• If driving on roads with road salt.
• If driving in coastal areas.
• If tar, soot, bird droppings, insects, or  tree sap are stuck to painted surfaces.
• Make sure to follow the instructions  indicated on the automated car wash.
• Fold in the door mirrors.
■Washing the Vehicle
■Using an Automated Car Wash
1Washing the Vehicle
Do not spray water into the air intake vents. It can 
cause a malfunction.
Air Intake Vents
1Using an Automated Car Wash
When using an automated  car wash that pulls the 
vehicle through with a conveyor, make sure vehicle is 
in car wash mode. 2 If you want to keep the transmission in 
(N 
position [car wash mode]  P. 359
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478
Maintenance
Accessories and Modifications
Accessories
When installing accessories, check the following:
• Do not install accessories on the windshie ld. They can obstruct your view and 
delay your reaction to driving conditions. In addition, they may become projectiles 
in a crash.
• Do not install any accessorie s over areas marked SRS Airbag, on the sides or backs 
of the front seats, on front or side pillars, or near the side windows. Accessories 
installed in these areas may interfere wi th proper operation of the vehicle’s 
airbags or may be propelled into you or another occupant if the airbags deploy.
• Be sure electronic accessories do not over load electrical circuits or interfere with 
proper operation of your vehicle.
2 Fuses  P. 508
•Before installing any electronic accessory,  have the installer contact an authorized 
Honda Clarity Electric dealer for assistance . If possible, have an authorized Honda 
Clarity Electric dealer inspect the final installation.
1 Accessories and Modifications
Honda Genuine accessor ies are recommended to 
ensure proper operati on on your vehicle.
3WARNING
Improper accessories or modifications can 
affect your vehicle’s handling, stability, and 
performance, and cause a crash in which 
you can be seriously hurt or killed.
Follow all instruction s in this owner’s 
manual regarding  accessories and 
modifications.
3WARNING
Use of improperly designed, engineered or 
manufactured high-voltage battery 
assemblies could cause a fire in your 
vehicle.
A vehicle fire could result in a crash or 
injury.
Only use a genuine Honda high-voltage 
battery assembly, or it s equivalent, in your 
vehicle.
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479
uuAccessories and Modifications uModifications
Maintenance
Modifications
Do not modify your vehicle in a manner that  may affect its handling, stability, or 
reliability, or install non-genuine Honda pa rts or accessories that may have a similar 
effect.
Even minor modifications to  vehicle systems can affect overall vehicle performance.
Always make sure all equipment is properly installed and maintained, and do not 
make any modification to your  vehicle or its systems that might cause your vehicle 
to no longer meet federal, state, pr ovince, territory, and local regulations.
The on-board diagnostic port (OBD-II/J2534  connector) installed on this vehicle is 
intended to be used only with automobile system diagnostic devices. Use of any 
other type of device may adversely affect  the vehicle’s electronic systems or allow 
them to be compromised, and could result in a system malfunction, drained battery, 
or other unexpected problems.
Do not modify or attempt to repair your  vehicle’s high-voltage power system or 
otherwise modify vehicle electrical systems. Disassembling or modifying electrical 
equipment can result in a crash or a fire.
If you ever need to replace your vehicle’s high-voltage battery assembly outside of 
warranty coverage, we highly recommend that you only use a genuine Honda high-
voltage battery assembly. Genuine Honda  high-voltage battery assemblies are 
designed to work with your vehicle’s power system and have been designed, 
engineered and manufactured to avoid overcharging situations. Non-genuine high-
voltage battery assemblies may not have b een similarly designed, engineered and 
manufactured, and installation of such assemb lies could result in overcharging, fires, 
loss of power, or other conditions that may increase the likelihood of a crash or 
injury.
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