Page 476 of 591

474
Maintenance
Before Performing Maintenance
Inspection and Maintenance
For your safety, perform all listed inspections and maintenance to keep your vehicle 
in good condition. If you become aware of  any abnormality (noise, smell, insufficient 
brake fluid, oil residue on the ground, etc .), have your vehicle inspected by an 
authorized Honda Clar ity Plug-In Hybrid dealer. (Note,  however, that service at an 
authorized Honda Clar ity Plug-In Hybrid dealer is not mandatory to keep your 
warranties in effect.)
■Daily inspections
Perform inspections before long distance  trips, when washing the vehicle, or when 
refueling.
■Periodic inspections
• Check the brake fluid level monthly.
2 Brake Fluid  P. 494
•Check the tire pressure monthly. Examin e the tread for wear and foreign objects.
2Checking and Maintaining Tires  P. 501
•Check the operation of the exterior lights monthly.
2 Replacing Light Bulbs  P. 496
•Check the condition of the wiper bl ades at least every six months.
2Checking and Maintaining Wiper Blades P. 498
■Types of Inspection and Maintenance
1Inspection and Maintenance
Maintenance, replacement, or repair of 
emissions control devices and systems may be 
done by any automotive repair establishment or 
individuals using parts that are “certified” to 
EPA standards.
According to state and fede ral regulations, failure to 
perform maintenance on the maintenance main 
items marked with # will  not void your emissions 
warranties. However, all ma intenance services should 
be performed in accordan ce with the intervals 
indicated by the driver  information interface.
2 Maintenance Service Items  P. 479
If you want to perform  complex maintenance tasks 
that require more skills a nd tools, you can purchase a 
subscription to the Service Express website at 
www.techinfo.honda.com .
2 Authorized Manuals  P. 577
If you want to perform ma intenance yourself, make 
sure that you have the necessary tools and skills first.
After performing ma intenance, update the records in 
the separate maintenance booklet.
U.S. models
19 CLARITY PHEV-31TRW6100.book  474 ページ  2018年10月25日 木曜日 午後2時29分 
     
        
        Page 479 of 591

477Continued
Maintenance
Maintenance MinderTM
If the vehicle has maintenance items due within 30 days, you will see the 
Maintenance Minder messages appear on the driver information interface every 
time you set the power mode to ON. The messages notify you wh en to bring your 
vehicle to an authorized Honda Clarit y Plug-In Hybrid dealer for indicated 
maintenance services.
To Use Maintenance MinderTM
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.
■Displaying the Maintenance Minder Information1Displaying the Maintena nce Minder Information
Based on the engine operati ng conditions and engine 
oil conditions, the system calculates the remaining 
days before the next service is to be performed.
There is a list of maintena nce main and sub items you 
can view on the  driver information interface.
2 Maintenance Service Items  P. 479
 /   Button
Maintenance Item Code(s)
 Button
ENTER  Button
19 CLARITY PHEV-31TRW6100.book  477 ページ  2018年10月25日 木曜日 午後2時29分 
     
        
        Page 481 of 591

479
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
■Maintenance Service Items1Maintenance Service Items
•Adjust the valves during services A, 0, 1, 2, or 3 if 
they are noisy.
Maintenance Minder Message
System Message 
Indicator
Sub Items
Main Item
U.S. 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.
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A
●Replace engine oil*1 and oil filter
0●Inspect 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
*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 15,000 miles (24,000 km).
*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 47,500 miles (75,000 km) 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 15,000 miles (24,000 km).
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
19 CLARITY PHEV-31TRW6100.book  479 ページ  2018年10月25日 木曜日 午後2時29分 
     
        
        Page 482 of 591

480
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
19 CLARITY PHEV-31TRW6100.book  480 ページ  2018年10月25日 木曜日 午後2時29分 
     
        
        Page 484 of 591
482
Maintenance
Maintenance Under the Hood
Maintenance Items Under the Hood
Washer Fluid 
(Black Cap)
12-Volt BatteryBrake Fluid 
(Black Cap)
Inverter Coolant 
Expansion Tank
Engine Coolant 
Reserve Tank
Engine Oil Fill Cap
Radiator Cap High Voltage 
Battery System 
Coolant 
Expansion Tank
19 CLARITY PHEV-31TRW6100.book  482 ページ  2018年10月25日 木曜日 午後2時29分 
     
        
        Page 486 of 591

484
uuMaintenance Under the Hood uRecommended Engine Oil
Maintenance
Recommended Engine Oil
Oil is a major contributor to your engine's 
performance and longevity. If you drive the 
vehicle with insufficient  or deteriorated oil, 
the engine may fail or be damaged.
This seal indicates the oil is energy conserving 
and that it meets the American Petroleum 
Institute’s latest requirements.
Use a Genuine Honda Motor Oil or another 
commercial engine oil of suitable viscosity for 
the ambient temperature as shown.
■Synthetic oil
You may also use synthetic motor oil if it  is labeled with the API Certification Seal 
and is the specified viscosity grade.
• Genuine Honda Motor Oil
• Premium-grade 0W-20 detergent oil wi th an API Certification Seal on 
the container.1 Recommended Engine Oil
Engine Oil Additives
Your vehicle does not require  oil additives. In fact, 
they may adversely affect the engine performance 
and durability.
Ambient Temperature
19 CLARITY PHEV-31TRW6100.book  484 ページ  2018年10月25日 木曜日 午後2時29分 
     
        
        Page 487 of 591
485
uuMaintenance Under the Hood uOil Check
Maintenance
Oil Check
We recommend that you check the engine  oil level every time you refuel or you 
charge the High Voltage battery.
Park the vehicle on level ground.
Turn off the power system. You can check  the oil level without the engine having 
run beforehand. If the engine has been ru nning, wait approximately three minutes 
before you check the oil. 1.Remove the dipstick (orange).
2. Wipe the dipstick with a clean cloth or 
paper towel.
3. Insert the dipstick back all the way into its 
hole.
4. Remove the dipstick again, and check the 
level. It should be between the upper and 
lower marks. Add oil if necessary.1Oil Check
If the oil level is near or below the lower mark, slowly 
add oil, being carefu l not to overfill.
Upper Mark
Lower Mark
19 CLARITY PHEV-31TRW6100.book  485 ページ  2018年10月25日 木曜日 午後2時29分 
     
        
        Page 488 of 591
486
uuMaintenance Under the Hood uAdding Engine Oil
Maintenance
Adding Engine Oil
1. Unscrew and remove the engine oil fill cap.
2. Add oil slowly.
3. Reinstall the engine oil fill cap, and tighten 
it securely.
4. Wait for three minutes and recheck the 
engine oil dipstick.1Adding Engine Oil
NOTICE
Do not fill the engine  oil above the upper mark. 
Overfilling the engine oil  can result in leaks and 
engine damage.
If any oil spills, wipe it away immediately. Spilled oil 
may damage the engine  compartment components.
Engine Oil Fill Cap
19 CLARITY PHEV-31TRW6100.book  486 ページ  2018年10月25日 木曜日 午後2時29分