2019 HONDA CLARITY PLUG IN HYBRID coolant level

479uu Maintenance Minder TM
u To Use Maintenance Minder TM
Continued
Maintenance
■ Maintenance Service Items 1 Maintenance Service Items
• Adjust the valves during services A, 0, 1, 2, or 3 if
they are noisy.
Maintenance Minder MessageSystem Message
Indicator
Sub ItemsMain 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.CODE Maintenance 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).CODE Maintenance 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 *519 CLARITY PHEV-31TRW6100.book 479 ページ ２０１８年１０月２５日　木曜日　午後２時２９分

480 uu Maintenance Minder TM
u To Use Maintenance Minder TM
Maintenance 1 Maintenance 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.CODE Maintenance Main Items
A ●
Replace engine oil *1
and oil filter CODE Maintenance 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 cover19 CLARITY PHEV-31TRW6100.book 480 ページ ２０１８年１０月２５日　木曜日　午後２時２９分

490 uu Maintenance Under the Hood u Engine 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 c oolant 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 1 Engine 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 Hybr id 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. They may not be compatible
with the coolant or with the engine components.Reserve
TankMAX
MIN19 CLARITY PHEV-31TRW6100.book 490 ページ ２０１８年１０月２５日　木曜日　午後２時２９分

491uu Maintenance Under the Hood u Engine Coolant
Maintenance
1. Make sure the engine and radiator are
cool.
2. Turn the radiator cap 1/8 turn counter-
clockwise and relieve any pressure in the
cooling system.
3. Push down and turn the radiator cap
counter-clockwise to remove it.
4. The coolant level should be up to the base
of the filler neck. Add coolant if it is low.
5. Put the radiator cap back on, and tighten it
fully.■ Radiator 1 Radiator
NOTICE
Pour the fluid slowly and ca refully so you do not spill
any. Clean up any spills immediately; they can
damage components in the engine compartment.
3
WARNING Removing the radiator cap while the
engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.Radiator Cap19 CLARITY PHEV-31TRW6100.book 491 ページ ２０１８年１０月２５日　木曜日　午後２時２９分

492 uu Maintenance Under the Hood u Cooling 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 an
authorized Honda Clarity Plug-In Hybrid 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 an
authorized Honda Clarity Plug-In Hybrid
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 1 Cooling 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 an authorized
Honda Clarity Plug-In Hybr id dealer for details.
Only use the genuine Honda coolant.
Expansion Tank MAX
MIN19 CLARITY PHEV-31TRW6100.book 492 ページ ２０１８年１０月２５日　木曜日　午後２時２９分

493uu Maintenance Under the Hood u Cooling 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 an
authorized Honda Clarity Plug-In Hybrid
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
MIN Window
Expansion Tank19 CLARITY PHEV-31TRW6100.book 493 ページ ２０１８年１０月２５日　木曜日　午後２時２９分

uu Overheating u How to Handle Overheating
546
Handling the Unexpected ■ Next thing to do
1. Check that the cooling fan is operating and
turn the power system off once the Stop
Driving When Safe. Engine
Temperature Too Hot message
disappears.
u If the cooling fan is not operating,
immediately turn the power system off.
2. Once the engine has cooled down, inspect
the coolant level an d check the cooling
system components for leaks.
u If the coolant level in the reserve tank is
low, add coolant until it reaches the
MAX mark.
u If there is no coolan t in the reserve tank,
check that the radiator is cool. Cover the
radiator cap with a heavy cloth and open
the cap. If necessary, add coolant up to
the base of the filler neck, and put the
cap back on.
■ Last thing to do
Once the engine has cooled sufficiently, turn the power system on.
If the Stop Driving When Safe. Engine Temperature Too Hot message does not
appear, resume driving. If it appears ag ain, contact an auth orized Honda Clarity
Plug-In Hybrid dealer for repairs. 1 The Stop Driving When Safe. Engine Temperature Too
Hot Message Appears on the Multi-Information Display
If the coolant is leaking, contact an authorized Honda
Clarity Plug-In Hybrid dealer for repairs.
Use water as an emergency/temporary measure only.
Have an authorized Honda Clarity Plug- In Hybrid
dealer flush the system wi th proper antifreeze as
soon as possible.3
WARNING Removing the radiator cap while the
engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.Reserve TankMAX
MIN19 CLARITY PHEV-31TRW6100.book 546 ページ ２０１８年１０月２５日　木曜日　午後２時２９分

Index
580
Index Index
Numbers 120V AC (AC Level 1) ................................ 459
12-Volt Battery Charging System
Indicator ............................................ 90, 548
240V AC (AC Level 2) ................................ 462
A ABS (Anti-lock Brake System) ................... 440
Accessories and Modifications ................. 521
Accessory Power Sockets .......................... 189
Acoustic Vehicle Alerting System ............ 395
Adaptive Cruise Control (ACC) with Low
Speed Follow (LSF) .................................. 402
Indicator .................................................. 100
Additives
Coolant ................................................... 490
Engine Oil ................................................ 484
Washer .................................................... 495
Additives, Engine Oil ................................ 484
Adjusting
Armrest ................................................... 182
Front Seats .............................................. 175
Head Restraints........................................ 178
Mirrors .................................................... 173
Steering Wheel ........................................ 172
Temperature ............................................ 126
Agile Handling Assist ................................ 427
Air Conditioning System (Climate Control
System) .................................................... 193
Changing the Mode ................................ 195 Defrosting the Windshield and
Windows ............................................... 197
Dust and Pollen Filter............................... 514
Sensors ................................................... 201
Synchronized Mode................................. 198
Using Automatic Climate Control ............ 193
Air Pressure ....................................... 502, 569
Airbags ........................................................ 54
Advanced Airbags ..................................... 60
Airbag Care............................................... 68
Driver’s Knee Airbag.................................. 61
Event Data Recorder .................................... 0
Front Airbags (SRS) .................................... 57
Indicator.............................................. 66, 94
Passenger Front Airbag Off Indicator ......... 67
Sensors ..................................................... 54
Side Airbags .............................................. 63
Side Curtain Airbags.................................. 65
AM/FM Radio ............................................ 243
Android Auto ........................................... 280
Anti-lock Brake System (ABS) .................. 440
Indicator.................................................... 93
Apple CarPlay ........................................... 277
Armrest ..................................................... 182
Audio Remote Controls ........................... 207
Audio System .................................... 204, 210
Adjusting the Sound................................ 236
Audio/Information Screen........................ 211
Changing the Home Screen Icon Layout .. 219
Changing the Screen Interface ................ 233
Closing Apps ........................................... 235 Customizing the Meter ........................... 219
Display Setup .......................................... 237
Error Messages ....................................... 284
General Information................................ 288
Home Screen .......................................... 225
Limitations for Manual Operation ............ 238
Menu Customize .................................... 234
MP3/WMA/AAC ..................................... 264
Reactivating ............................................ 206
Recommended Devices ........................... 290
Remote Controls ..................................... 207
Security Code ......................................... 206
Selecting an Audio Source ...................... 238
Status Area ............................................. 232
Theft Protection ...................................... 206
USB Flash Drives...................................... 290
USB Port ................................................. 205
Voice Control Operation ......................... 239
Wallpaper Setup ..................................... 223
Audio/Information Screen ....................... 211
Authorized Manuals ................................ 577
Auto Door Locking/Unlocking ................ 149
Automatic Brake Hold ............................. 438
Indicator ........................................... 87, 438
Automatic Brake Hold System
Indicator ........................................... 87, 438
Automatic Lighting .................................. 163
Average Fuel Economy ............................ 126
Average Fuel Economy Records .............. 129
Average Speed ......................................... 12719 CLARITY PHEV-31TRW6100.book 580 ページ ２０１８年１０月２５日　木曜日　午後２時２９分