2021 HONDA CLARITY PLUG-IN cooling

106
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 a dealer.
2 Checking the 12-Volt Battery P. 514
●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. 551
●Appears when the engine coolant temperature gets
abnormally high.
2Overheating P. 548
●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 a deal er as soon as possible.
●Appears when the fuel fill cap is loose or is not
installed.
2Tighten Fuel Cap Message P. 553
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Continued197
uuClimate Control System uUsing Automatic Climate Control
Controls
■Switching the vent mode
1.Press the CLIMATE button.
2. Select a desired vent mode icon.
■A/C on and off
1.Press the CLIMATE button.
2. Select On or Off .
1Using Automatic Climate Control
When you unlock the doors with your remote, the
driver’s ID (DRIVER 1 or DRIVER 2) is detected, and
the climate control settings are turned to the
respective mode automatically when you set the
power mode to ON.
If any icons are not select ed within several seconds
after the display is switched, it returns to the previous
screen. In this case, press the CLIMATE button again.
You can change the length of time the climate
control display stays on. 2 Customized Features P. 308
While ECON mode is active, the climate control
system may have reduced cooling performance.
Models with driving position memory system
All models
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477
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 478
Safety When Performing Maintenance ..479Parts and Fluids Used in Maintenance Service ........................................... 480
Maintenance Minder
TM..................... 481
Maintenance Under the Hood Maintenance Items Under the Hood .. 486
Opening the Hood ........................... 487
Recommended Engine Oil ................ 488
Oil Check ......................................... 489
Adding Engine Oil ............................ 490
Changing the Engine Oil and Oil Filter ...491 Engine Coolant ................................ 494
Cooling System ................................ 496
Transmission Fluid ............................ 498
Brake Fluid ....................................... 498
Refilling Window Washer Fluid......... 499
Replacing Light Bulbs ....................... 500Checking and Maintaining Wiper
Blades .......................................... 502
Checking and Maintaining Tires
Checking Tires ................................. 505
Tire and Loading Information Label .. 506
Tire Labeling .................................... 506
DOT Tire Quality Grading (U.S. Vehicles).. 508
Wear Indicators ............................... 510
Tire Service Life ................................ 510
Tire and Wheel Replacement ........... 511
Tire Rotation .................................... 512
Winter Tires ..................................... 513
12-Volt Battery ................................. 514
Remote Transmitter Care Replacing the Button Battery ........... 516
Climate Control System Maintenance.. 517CleaningInterior Care .................................... 519
Exterior Care.................................... 521
Accessories and Modifications ........ 525
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494
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 a 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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495
uuMaintenance Under the Hood uEngine 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.
■Radiator1Radiator
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.
3WARNING
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 Cap
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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
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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
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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
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