2021 HONDA CLARITY PLUG-IN radiator

85
Safe Driving
Safety Labels
Label Locations
These labels are in the locations shown. They warn you of potential hazards that can cause serious injury or death. Read these labels
carefully.
If a label comes off or becomes hard to read (except for the U. S. dashboard label which may be removed by the owner), contact a dealer
for a replacement.
Dashboard
Air Conditioner System U.S. models
Canadian models
Radiator Cap
U.S. models only
Charging Lid
U.S. models Canadian models
High Voltage Battery System
Coolant Reserve Tank Cap
Sun VisorU.S. models Canadian modelsMotor Coolant
Reserve Tank Cap
Actuator Lid
U.S. models Canadian models
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uuBefore Performing Maintenance uParts and Fluids Used in Maintenance Service
480
Maintenance
• The vehicle must be in a stationary condition.
u Make sure your vehicle is parked on leve l ground, the parking brake is set, and
the power system is turned off.
• Be aware that hot parts can burn you.
u Make sure to let the power system incl uding the engine and exhaust system
cool thoroughly before touching vehicle parts.
• Be aware that moving parts can injure you.
u Do not activate the power system unle ss instructed, and keep your hands and
limbs away from moving parts. When the power mode is on, the engine can
automatically start, or the radiator fan may start operating without the engine
running.
Parts and Fluids Used in Maintenance Service
The use of Honda genuine parts and fluids is recommended when maintaining and
servicing your vehicle. Honda genuine parts are manufactured according to the
same high quality standards used in Honda vehicles.
■Vehicle Safety
1 Parts and Fluids Used in Maintenance Service
NOTICE
Do not press the engine cover forcibly. This may
damage the engine cover and component parts.
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486
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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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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uuOverheating uHow to Handle Overheating
550
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 again, contact a dealer for repairs.
1 The Stop Driving When Safe. Engine Temperature Too
Hot Message Appears on the Driver Information Interface
If the coolant is leaking, contact a dealer for repairs.
Use water as an emergency/temporary measure only.
Have a dealer flush the system with proper antifreeze
as soon as possible.
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.
Reserve Tank
MAX
MIN
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587
Index
Collision Mitigation Braking SystemTM
(CMBSTM) ................................................. 445
Console Compartment ............................. 188
Control Box .............................................. 467
Controls .................................................... 137
Coolant (Engine) ...................................... 494
Adding to the Radiator ........................... 495
Adding to the Reserve Tank .................... 494
Overheating ............................................ 548
Coolant (High Voltage Battery and Inverter) .................................................. 496
Creeping (Transmission) .......................... 385
Cup Holders .............................................. 189
Customer Service Information ................ 583
Customized Features ....................... 135, 308
D
Daytime Running Lights .......................... 167
Dead Battery (12-Volt) ............................. 545
Deceleration Paddle Selector .................. 394
Deceleration Paddl e Selector Indicator....... 93
Defrosting the Windshield and Windows ................................................. 199
Devices that Emit Radio Waves ............... 575
Dimming Headlights .............................................. 164
Rearview Mirror ...................................... 175
Dipstick (Engine Oil) ................................ 489
Directional Signals (Turn Signal) ............. 163
Display Button .......................................... 213 Door Mirrors
............................................. 176
Doors ......................................................... 139
Auto Door Locking .................................. 151
Auto Door Unlocking ............................... 151
Door Open Message .................................. 46
Keys ........................................................ 139
Locking/Unlocking the Doors from the Inside............................................... 25, 148
Locking/Unlocking the Doors from the Outside.................................................. 141
Lockout Prevention System ...................... 147
DOT Tire Quality Grading ........................ 508
Drive Cycle Score/Lifetime Points ............ 133
Driver Information Interface ................... 126
Driver’s Knee Airbag .................................. 62
Driving ....................................................... 373
Braking .................................................... 437
Shifting Gear ........................................... 386
Transmission ............................................ 385
Turning on the Power .............................. 380
Driving Position Memory System ............. 172
Dust and Pollen Filter ............................... 518
E
Eco Assist® System ...................................... 20
Eco Drive Display ...................................... 132
ECON Mode .............................................. 392
Elapsed Time ............................................. 129
Electric Power Steering (EPS) System
Indicator .................................................... 96 Electronic Stability Control (ESC)
............. 428
Emergency ................................................ 567
Emissions Testing (Readiness Codes) ....... 577
Energy Flow Screen .................................. 217
Engine
Coolant ................................................... 494
If the 12-Volt Battery Is Dead................... 545
Oil ........................................................... 488
Engine Coolant ......................................... 494
Adding to the Radiator ............................ 495
Adding to the Reserve Tank..................... 494
Overheating ............................................ 548
Engine Oil ................................................. 488
Adding .................................................... 490
Checking................................................. 489
Recommended Engine Oil ....................... 488
EPS (Electric Power Steering) System ........ 96
EV Indicator ................................................ 91
Exhaust Gas Hazard (Carbon Monoxide) .. 84
Exterior Care (Cleaning) ........................... 521
Exterior Mirrors ........................................ 176
F
Features.................................................... 205
Filters Dust and Pollen ....................................... 518
Oil ........................................................... 491
Flat Tire ..................................................... 528
Floor Mats ................................................. 520
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590
Index
Locking/Unlocking.................................... 139
Auto Door Locking/Unlocking .................. 151
Childproof Door Locks ............................. 150
From Inside .............................................. 148
From Outside ........................................... 141
Keys ........................................................ 139
Using a Key ............................................. 146
Lockout Prevention System ...................... 147
Low Battery Charge (12-Volt) .................. 552
Low Fuel Indicator ...................................... 93
Low Smart Entry Remote Signal
Strength ................................................... 140
Lower Anchors ............................................ 76
Luggage (Maximum Load Limit) .............. 377
M
Maintenance............................................. 477
12-Volt Battery ........................................ 514
Brake Fluid............................................... 498
Cleaning .................................................. 519
Climate Control System ........................... 517
Coolant ........................................... 494, 496
Maintenance Minder
TM............................ 481
Oil ........................................................... 489
Precautions .............................................. 478
Radiator................................................... 495
Remote Transmitter ................................. 516
Replacing Light Bulbs ............................... 500
Safety ...................................................... 479
Service Items............................................ 483 Tires ........................................................ 505
Transmission Fluid ................................... 498
Under the Hood ...................................... 486
Malfunction Indicator Lamp ...................... 92
Map Lights ................................................ 186
Maximum Load Limit ............................... 377
Meters, Gauges ......................................... 123
Mirrors ...................................................... 175
Adjusting ................................................ 175
Door ....................................................... 176
Exterior ................................................... 176
Interior Rearview ..................................... 175
Modifications (and Accessories) .............. 525
Motor ........................................................ 574
If the Battery Is Dead ............................... 545
MP3 ........................................................... 266
Multi-View Rear Camera .......................... 455
N
Numbers (Identification).......................... 574
O
Odometer................................................. 128
Oil (Engine) ............................................... 488
Adding .................................................... 490
Checking................................................. 489
Displaying Oil Life .................................... 481
Recommended Engine Oil ....................... 488
Viscosity .................................................. 488 Warning ................................................. 551
Open Source Licenses .............................. 307
Opening Trunk .............................................. 152, 570
Opening/Closing
Hood ...................................................... 487
Power Windows...................................... 158
Trunk ...................................................... 152
Operating the Switches Around the Steering Wheel ....................................... 160
Outside Temperature Display ................. 128
Overheating ............................................. 548
P
Pandora®................................................. 264
Panic Mode ............................................... 157
Parking ..................................................... 453
Parking Brake ........................................... 437
Parking Brake and Brake System Indicator (Red) ....... 88, 89, 554, 556
Passenger Front Airbag Off Indicator ....... 68
Passing Indicators ..................................... 164
Playing Bluetooth ® Audio ....................... 269
POWER Button ......................................... 160
Power Flow Monitor ................................ 134
Power System
Turning on .............................................. 380
POWER SYSTEM Indicator ......................... 90
Power Windows ....................................... 158
POWER/CHARGE Gauge .......................... 124
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