2021 HONDA CLARITY PLUG-IN dead battery

541Continued
Handling the Unexpected
Power System Won’t Start
Checking the Procedure
When the READY indicator does not come on and the Ready To Drive message
does not appear on the driver informatio n interface, check the following items and
take appropriate action.
ChecklistConditionWhat to Do
Check if the related
indicator or driver
information interface
messages come on.The Remove Charger Connector message appearsRemoving a charge connector. Set the power
mode to ACCESSORY, then to ON.
The Low Battery Charge . Power Reduced. message appearsCharge the High Voltage battery.
2Charging P. 460
The Temperature Is Too Cold For Vehicle To Operate
message appears.2 Driver Information Interface Warning and
Information Messages P. 105
The To Start, Hold Remote Near Start Button message
appears.
u Make sure the smart entry remote is in its operating range.
2 POWER Button Operating Range P. 160
2If the Smart Entry Remote Battery is Weak
P. 543
The POWER SYSTEM indicator comes on.Have your vehicle checked by a dealer.
The transmission system indicator blinks and Transmission
Problem Apply Parking Brake When Parked message
appears.The power system can be activated as a
temporary measure.
2 If the Transmission System Indicator Blinks
along with the Warning Message P. 558
Check the brightness
of the interior lights. The interior lights are dim or do not come on at
all. Have the 12-volt battery checked by a dealer.
The interior lights come on normally. Check a ll fuses, or have your vehicle checked by
a dealer.
2 Inspecting and Changing Fuses P. 566
1Checking the Procedure
If you must start the vehi cle immediately, use an
assisting vehicle or booster battery to jump start it.
2 If the 12-Volt Battery Is Dead P. 545
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545Continued
Handling the Unexpected
If the 12-Volt Battery Is Dead
Turn off the power to electric devices, such as the audio and lights. Turn off the
power system, then open the hood. 1.Open the battery terminal cover.
2. Connect the first jumper cable to your
vehicle’s 12-volt battery + terminal.
3. Connect the other end of the first jumper
cable to the booster battery + terminal.
u If you use a booster battery, only use a
12-volt booster battery.
u When using an automotive battery
charger, select a charging voltage lower
than 15-volts. Chec k the charger manual
for the proper setting.
4. Connect the second jumper cable to the
booster battery - terminal.
■Jump Starting Procedure1If the 12-Volt Battery Is Dead
Securely attach the jumper cable clips so that they do
not come off when the power system vibrates. Also
be careful not to tangle the jumper cables or allow
the cable ends to touch each other while attaching or
detaching the jumper cables.
12-volt Battery performa nce degrades in cold
conditions and may prevent the power system from
starting.
3WARNING
A 12-volt battery can explode if you do not
follow the correct procedure, seriously
injuring anyone nearby.
Keep all sparks, open flames, and smoking
materials away from the 12-volt battery.
Battery Terminal Cover
Booster Battery
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546
uuIf the 12-Volt Battery Is Dead u
Handling the Unexpected
5.Connect the other end of the second
jumper cable to the power system
mounting bolt as shown. Do not connect
this jumper cable to any other part of the
vehicle.
6. If your vehicle is connected to another
vehicle, start the assi sting vehicle’s engine,
and increase its rpm slightly.
7. Attempt to start your vehicle’s power
system. If it does not turn on, check that the
jumper cables have good metal-to-metal
contact.
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547
uuIf the 12-Volt Battery Is Dead u
Handling the Unexpected
Once your vehicle’s power system has started, remove the jumper cables in the
following order:
1.Disconnect the jumper cable from your vehicle’s ground.
2. Disconnect the other end of the jump er cable from the booster battery -
terminal.
3. Disconnect the jumper cable from your vehicle’s 12-volt battery + terminal.
4. Disconnect the other end of the jump er cable from the booster battery +
terminal.
Have your vehicle inspected by a n earby service station or a dealer.
■What to Do After the Power System Starts1What to Do After the Power System Starts
The indicators for the Vehicle Stability Assist
TM (VSA ®)
system, VSA ® OFF, Collision Mitigation Braking
System
TM (CMBSTM), and low tire pressure/Tire
Pressure Monitoring System (TPMS) may come on
along with a message in the driver information
interface when you turn the power system on after
reconnecting the battery.
Drive a short distance at 12 mph (20 km/h). The
indicator should go off. If it does not, have your
vehicle checked by a dealer.
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577
Information
Emissions Testing
Testing of Readiness Codes
Your vehicle has readiness codes as part of the onboard self diagnostic system.
Some states use these codes for testing to verify whether your vehicle’s emissions
components are working properly.
The codes may not be read properly if te sting is performed just after the 12-volt
battery has gone dead or been disconnected.
To check if they are set, set the powe r mode to ON, without turning the power
system on. The malfunction indicator lamp will come on for several seconds. If it
then goes off, the readiness co des are set. If it blinks five times, the readiness codes
are not set.
If you are required to have your vehicle te sted before the readiness codes are ready,
prepare the vehicle for retest ing by doing the following:
1. Fill the gas tank to approximately 3/4 full.
2. Park the vehicle and leave the power system off for 6 hours or more.
3. Make sure the ambient temperature is between 40°F and 95°F (4°C and 35°C).
4. Turn the power system on.
5. Use the HV button to select HV or HV Charge.
2HV Button P. 16
6.Select a nearby, lightly traveled major hi ghway where you can maintain a speed
of 50 mph (80 km/h) over for at least 20 minutes. Drive on the highway in
(D
with SPORT mode. Do not use cruise control.
7. Drive in city or suburban traffic for at l east 10 minutes. When traffic conditions
allow, let the vehicle coast for several se conds without using the accelerator pedal
or the brake pedal.
8. Park the vehicle and leave the po wer system off for 40 minutes.
1Testing of Readiness Codes
The readiness codes are erased when the 12-volt
battery is disconnected, and set again only after
several days of driving unde r a variety of conditions.
If a testing facility determines that the readiness
codes are not set, you may be requested to return at
a later date to complete the test.
If the testing facility determines the readiness codes
are still not set, see a dealer.
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586
Index
B
Battery....................................................... 472
12-Volt .................................................... 514
12-Volt Battery Charging System Indicator .......................................... 93, 552
Charging (12-Volt Battery) ....................... 515
Charging (High Voltage Battery) .............. 460
High Voltage ........................................... 472
If the 12-Volt Battery Is Dead ................... 545
Maintenance (Checking the 12-Volt Battery) .................................................. 514
Maintenance (Replacing).......................... 516
Belts (Seat) .................................................. 47
Beverage Holders ...................................... 189
Bluetooth ® Audio ..................................... 269
Bluetooth ® HandsFreeLink ®................... 339
Booster Seats (For Children) ....................... 83
Brake System ............................................. 437
Anti-lock Brake System (ABS) ................... 443
Automatic Brake Hold.............................. 441
Brake Assist System ................................. 444
Fluid ........................................................ 498
Foot Brake ............................................... 439
Indicator (Amber)............................... 90, 556
Indicator (Red) ..................... 88, 89, 554, 556
Parking Brake .......................................... 437
Brake System (Amber) Indicator ............................................ 90, 556
Brake System (Red) Indicator .............................. 88, 89, 554, 556 Bulb Replacement
.................................... 500
Front Turn Signal and Front Side Marker
Lights .................................................... 500
Headlights ............................................... 500
High-Mount Brake Light .......................... 501
Parking/Daytime Running Lights .............. 500
Rear License Plate Lights .......................... 501
Taillights and Back-Up Lights ................... 501
Taillights/Rear Side Marker, Brake and
Rear Turn Signal Lights .......................... 501
Bulb Specifications ................................... 572
C
Carbon Monoxide Gas ............................... 84
Carrying Cargo ................................. 375, 377
Certification Label .................................... 574
Changing Bulbs ........................................ 500
Charge Lid ......................................... 463, 466
Charge Lid Release Button .............. 462, 465
Charge Timer Setting ............................... 473
Charging (High Voltage Battery) ............ 460
120V AC (AC Level 1).............................. 462
240V AC (AC Level 2).............................. 465
Cannot Start Charging ............................ 469
Charge Indicator (vehicle side) ................. 471
Charge Lid ...................................... 463, 466
Charging Cable Bag ................................ 462
Charging Connector........................ 463, 466
Control Box ............................................. 467
High Voltage Battery ............................... 472 Timer ...................................................... 473
Charging Cable Bag ................................. 462
Charging Connector ........................ 463, 466
Charging System Indicator ................ 93, 552
Child Safety ................................................ 71
Childproof Door Locks ............................ 150
Child Seat ................................................... 71
Booster Seats ............................................ 83
Child Seat for Infants ................................ 73
Child Seat for Small Children .................... 74
Installing a Child Seat with a Lap/Shoulder
Seat Belt ................................................. 78
Larger Children ......................................... 82
Rear-facing Child Seat............................... 73
Selecting a Child Seat ............................... 75
Using a Tether .......................................... 80
Childproof Door Locks ............................. 150
Cleaning the Exterior ............................... 521
Cleaning the Interior ............................... 519
Climate Control System ........................... 195
Changing the Mode................................ 197
Defrosting the Windshield and
Windows .............................................. 199
Dust and Pollen Filter .............................. 518
Sensors ................................................... 203
Using Automatic Climate Control............ 195
Clock ......................................................... 138
CMBS
TM (Collision Mitigation Braking
SystemTM) ................................................ 445
Coat Hook ................................................ 192
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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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