Page 486 of 596

484
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
1Maintenance Service Items
•Adjust the valves during services A, 9, 1, 2, or 3 if
they are noisy.
Canadian models
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset,
change the engine oil every year.
*2: 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 24,000 km (15,000 miles).
*3: 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 75,000 km (47,500 miles) or 3 years.
*4: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is reset, change the brake fluid every 3 years.
*5: If you drive in dusty conditions, replace the air cleaner element every 24,000 km (15,000 miles).
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A
●Replace engine oil*1 and oil filter
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace dust and pollen filter*2
3●Replace transmission fluid*3
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*4
8●Replace air cleaner element*5
9●Service front and rear brakes●Check expiration date for Temporary Tire Repair Kit●Inspect these items: • Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines (including ABS/VSA ®)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
•Stay RR, RR Subframe
• Under body battery cover
21 CLARITY PHEV CSS-31TRW6300.book 484 ページ 2020年5月19日 火曜日 午前10時46分
Page 487 of 596

485
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
Reset the maintenance minder information display if you have performed the
maintenance service.
1. Set the power mode to ON.
2. Press the (display/information) button.
3. Press the / button to select the icon, and press the ENTER button.
4. Press and hold the ENTER button for about 10 second s to enter the reset mode.
5. Press / to select a maintenance item to reset, or to select All Due Items
(You can also select Cancel to end the process).
6. Press the ENTER button to reset the selected item.
7. Repeat from step 4 for other items you wish to reset.
■Resetting the Display1Resetting the Display
NOTICE
Failure to reset the Maintenance MinderTM display
after a maintenance servic e results in the system
showing incorrect maintena nce intervals, which can
lead to serious mechanical problems.
The dealer will reset the Maintenance Minder
TM
display after completing th e required maintenance
service. If someone other than a dealer performs
maintenance service, reset the Maintenance
Minder
TM display yourself.
You can also reset the Maintenance Minder
TM display
using the audio/information screen. 2 Customized Features P. 308
/ / /
Button34
ENTER Button
Button
34
21 CLARITY PHEV CSS-31TRW6300.book 485 ページ 2020年5月19日 火曜日 午前10時46分
Page 498 of 596

496
uuMaintenance Under the Hood uCooling System
Maintenance
Cooling System
Coolant is used to reduce the temperature of the high voltage battery and inverter
coolant. When checking the c oolant level, make sure to follow the procedures listed
below. If the coolant level is below the MIN mark, have your vehicle inspected by a
dealer.
1.Check the fluid level in the tank.
2. If the coolant level has dropped below the
MIN level, have your vehicle serviced at a
dealer.
u Only a properly trained technician can
refill the coolant an d check the system
for leaks.
Specified coolant: Honda Long Life Antifreeze/Coolant Type 2
■Checking the Inverter Coolant Level
1Cooling System
NOTICE
Genuine Honda engine coolan t is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as about −31°F (−35°C). If your
vehicle is consistently subjected to temperatures
below this, the concentration of antifreeze in the
coolant should be increased. Consult a dealer for
details.
Only use the genuine Honda coolant.
Expansion Tank
MAX
MIN
21 CLARITY PHEV CSS-31TRW6300.book 496 ページ 2020年5月19日 火曜日 午前10時46分
Page 499 of 596
497
uuMaintenance Under the Hood uCooling System
Maintenance
1. Check the fluid level in the tank from the
window.
2. If the coolant level has dropped below the
MIN level, have your ve hicle serviced at a
dealer.
u Only a properly trained technician can
refill the coolant and check the system
for leaks.
■Checking the Coolant Level for the High Voltage Battery
and Related Parts
MAX
MINWindow
Expansion Tank
21 CLARITY PHEV CSS-31TRW6300.book 497 ページ 2020年5月19日 火曜日 午前10時46分
Page 510 of 596

508
uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
Maintenance
DOT Tire Quality Grading (U.S. Vehicles)
The tires on your vehicle meet all U.S. Federal Safety
Requirements. All tires are also graded for treadwear, traction,
and temperature performance a ccording to Department of
Transportation (DOT) standards. The following explains these
gradings.
Quality grades can be found where applicable on the tire sidewall
between tread shoulder an d maximum section width.
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested un der controlled conditions on a
specified government test course. For example, a tire graded 150
would wear one and one-half (1 1/2) times as well on the
government course as a tire grad ed 100. The relative performance
of tires depends upon the actual co nditions of their use, however,
and may depart significantly from the norm due to variations in
driving habits, service practices and differences in road
characteristics and climate.
■Uniform Tire Quality Grading
■Treadwear
1 Uniform Tire Quality Grading
For example:
Treadwear 200
Traction AA
Temperature A
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.
21 CLARITY PHEV CSS-31TRW6300.book 508 ページ 2020年5月19日 火曜日 午前10時46分
Page 512 of 596
510
uuChecking and Maintaining Tires uWear Indicators
Maintenance
Wear Indicators
The groove where the wear indicator is
located is 1/16 inch (1.6 mm) shallower than
elsewhere on the tire. If the tread has worn so
that the indicator is ex posed, replace the tire.
Worn out tires have poor traction on wet
roads.
Tire Service Life
The life of your tires is dependent on many factors, including driving habits, road
conditions, vehicle loading, inflation pre ssure, maintenance history, speed, and
environmental conditions (even when the tires are not in use).
In addition to regular in spections and inflation pres sure maintenance, it is
recommended that you have annual inspecti ons performed once the tires reach five
years old. All tires should be removed fro m service after 10 years from the date of
manufacture, regardless of their condition or state of wear.
Example of a Wear
Indicator mark
21 CLARITY PHEV CSS-31TRW6300.book 510 ページ 2020年5月19日 火曜日 午前10時46分
Page 519 of 596

517
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 J2842.1 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. 85
2 Specifications P. 572
Canadian models
: Caution
: Flammable
Refrigerant
: Requires Registered
Technician to Service
: Air Conditioning
System
21 CLARITY PHEV CSS-31TRW6300.book 517 ページ 2020年5月19日 火曜日 午前10時46分
Page 530 of 596

528
Handling the Unexpected
If a Tire Goes Flat
Temporarily Repairing a Flat Tire
If the tire has a large cut or is otherwise severely damaged, you will need to have the
vehicle towed. If the tire only has a smal l puncture, from a nail for instance, you can
use the temporary tire repair kit so that you can drive to the nearest service station
for a more permanent repair.
If a tire goes flat while driving, grasp the steering wheel firmly, and brake gradually
to reduce speed. Then stop in a safe place.
1. Park the vehicle on a firm, level, and non-slippery surface and apply the parking
brake.
2. Change the gear position to
(P.
3. Turn on the hazard warning lights an d set the power mode to VEHICLE OFF
(LOCK).
1 Temporarily Repairing a Flat Tire
The kit should not be used in the following situations.
Instead, contact a dealer or roadside assistance to
have the vehicle towed.
•The tire sealant has expired.
•More than one tire is punctured.•The puncture or cut is larger than 3/16 inch (4 mm).
•The tire side wall is da maged or the puncture is
outside the contact area.
•Damage has been caused by driving with the tire
extremely under inflated.
•The tire bead is no longer seated.
•The rim is damaged.
Do not remove a nail or screw that punctured the
tire. If you remove it from the tire, you may not be
able to repair the puncture using the kit.
When the puncture is:Kit Use
Smaller than 3/16 inch (4 mm)Yes
Larger than 3/16 inch (4 mm)No
Contact
Area
21 CLARITY PHEV CSS-31TRW6300.book 528 ページ 2020年5月19日 火曜日 午前10時46分