
35
Quick Reference Guide
Maintenance (P 475)
Under the Hood (P 484)
●Check engine oil, coolants and windshield washer fluid. Add 
when necessary.
●Check brake fluid.●Check the 12-volt battery condition monthly.
aPull the hood release handle under the corner of the 
dashboard.
bLocate the hood latch lever, push it to the side, and then 
raise the hood. Once you have raised the hood slightly, you 
can release the lever.
cWhen finished, close the hood  and make sure it is firmly 
locked in place.
Lights (P 498)
●Inspect all lights regularly.
Wiper Blades (P 500)
●Replace blades if they leave streaks 
across the windshield.
Tires (P 503)
●Inspect tires and  wheels regularly.●Check tire pressures regularly.●Install snow tires for winter driving.
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104
uuIndicators uDriver Information Interface Wa rning and Information Messages
Instrument Panel
MessageConditionExplanation
●Appears when there is a problem with the sensor on 
the 12-volt battery.●Have your vehicle checked by an authorized Honda 
Clarity Plug-In Hybrid dealer.
2 Checking the 12-Volt Battery  P. 512
●Appears when the engine oil pressure is low.●Appears while driving - Immediately stop in a safe 
place.
2If the Low Oil Pressure Warning Appears  P. 549
●Appears when the engine coolant temperature gets 
abnormally high.
2Overheating  P. 546
●Appears when the engine coolant temperature is 
near its upper limit.●Drive slowly to prevent overheating.
●Appears if there is a pr oblem with the cooling 
system.●Drive slowly to prevent ov erheating and have your 
vehicle checked by an author ized Honda Clarity Plug-In 
Hybrid dealer as soon as possible.
●Appears when the fuel fill cap is loose or is not 
installed.
2 Tighten Fuel Cap Message  P. 551
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297
uuGeneral Information on the Audio System uHonda App License Agreement
Continued
Features
E. Information Collection and Storage
1. Information Collection , Use, Transmission and Storage of Data. Consent to Use of Data:
 You agree that HONDA and PROVIDERS may 
collect and use your information gathered in  any manner as part of product support services related to the SOFTWARE or related services. 
HONDA may share such information with third  parties, including, without limitation, PR OVIDERS, third party software and services 
suppliers, their affiliates and/or their designated agents, solely to improve their products or to provide services or technolo gies to you. 
HONDA, third party software and syst ems suppliers, their affiliates and/or their de signated agent may disclose this information to others, 
but not in a form that pe rsonally identifies you.
2.  Information Storage.
 Depending on the type of mult imedia system you have in your VEHICLE, certain information may be stored for ease 
of use of the SOFTWARE including, without limitation, search hi story, location history in certain applications, previous and saved 
destinations, map locations within certain applicat ions, and device numbers and contact information.
(a) Vehicle Health Information.
 Your VEHICLE may remotely transmit information re garding the status and health of your VEHICLE 
(“VEHICLE INFORMATION”) to HONDA without  notification to you. VEHICLE INFORMATION may contain VEHICLE maintenance and 
malfunction status that is derived from VEHICLE diagnostic data  and includes, but is not limited to, status of powered doors and windows, 
battery life data, battery charging data, VE HICLE speed, coolant temperature, air comp ressor revolution, output power, warning codes, 
diagnostic trouble codes, fuel injection volume, and engine rotati ons per minute. VEHICLE HEALTH INFORMATION may be used by HON DA 
for research and development, to  deliver HONDA SERVICES and informat ion to you, and to contact you, and is retained only for a period 
of time necessary to fulfill these goals.
(b) VEHICLE Geolocation Data (non-navigation/map based).
 If you opt-in to geolocation-based SERVICES, your vehicle’s geolocation data 
(latitude and longitude) will be  automatically sent from your VEHICLE to HONDA and PROVIDERS.
(c) You understand that the inputting or uploading of information  to your VEHICLE’s multimedia system or the SOFTWARE or SERVIC ES is 
at your own risk and that HONDA is not responsible for unauthori zed access to or use of any personal or other information. All information 
uploaded to the SOFTWARE and SERVICES may be  stored on your VEHICLES’s multimedia system and you understand that the security and 
safety of your VEHICLE’s multimedia  system is your sole responsibility.
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475
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 476
Safety When Performing Maintenance ..477Parts and Fluids Used in Maintenance Service ........................................... 478
Maintenance Minder
TM..................... 479
Maintenance Under the Hood Maintenance Items Under the Hood .. 484
Opening the Hood ........................... 485
Recommended Engine Oil ................ 486
Oil Check ......................................... 487
Adding Engine Oil ............................ 488
Changing the Engine Oil and Oil Filter ...489 Engine Coolant ................................ 492
Cooling System ................................ 494
Transmission Fluid ............................ 496
Brake Fluid ....................................... 496
Refilling Window Washer Fluid......... 497
Replacing Light Bulbs ....................... 498Checking and Maintaining Wiper 
Blades .......................................... 500
Checking and Maintaining Tires
Checking Tires ................................. 503
Tire and Loading Information Label .. 504
Tire Labeling .................................... 504
DOT Tire Quality Grading (U.S. Vehicles).. 506
Wear Indicators ............................... 508
Tire Service Life ................................ 508
Tire and Wheel Replacement ........... 509
Tire Rotation .................................... 510
Winter Tires ..................................... 511
12-Volt Battery ................................. 512
Remote Transmitter Care Replacing the Button Battery ........... 514
Climate Control System Maintenance.. 515CleaningInterior Care .................................... 517
Exterior Care.................................... 519
Accessories and Modifications ........ 523
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481
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
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482
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
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484
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
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492
uuMaintenance Under the Hood uEngine Coolant
Maintenance
Engine Coolant
This coolant is premixed with 50% antifreeze and 50% water. Do not add any 
straight antifreeze or water.
We recommend you check the engine coolan t level every time you refuel or you 
charge the High Voltage battery. Check the re serve tank first. If it is completely 
empty, also check the coolant level in  the radiator. Add the engine coolant 
accordingly.
1. Make sure the engine and radiator are cool.
2. Check the amount of coolant in the reserve 
tank.
u If the coolant level is below the  MIN 
mark, add the specified coolant until it 
reaches the  MAX mark.
3. Inspect the cooling  system for leaks.
Specified coolant: Honda Long  Life Antifreeze/Coolant Type 2
■Reserve Tank
1Engine Coolant
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 an authorized 
Honda Clarity Plug-In Hybrid dealer for details.
If Honda antifreeze /coolant is not available, you may 
use another major brand of  non-silicate coolant as a 
temporary replacement. Check  that it is a high quality 
coolant recommended for  aluminum engines. 
Continued use of any non-Honda coolant can result 
in corrosion, causing the cooling system to 
malfunction or fail. Have the cooling system flushed 
and refilled with Honda anti freeze/coolant as soon as 
possible.
Do not add rust inhibitors or other additives to your 
vehicle’s cooling system. Th ey may not be compatible 
with the coolant or with the engine components.
Reserve 
Tank
MAX
MIN
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