2021 HONDA CLARITY PLUG-IN dead battery

Contents
Child Safety P. 71Safety Labels P. 85
Opening and Closing the Trunk P. 152 Security System P. 155 Opening and Closing the Windows P. 158
Adjusting the Mirrors P. 175 Adjusting the Seats P. 177
Climate Control System P. 195
Audio Error Messages P. 286 General Information on the Audio System P. 290
Bluetooth ® HandsFreeLink ® P. 339
When Driving P. 380 Braking P. 437Parking Your Vehicle P. 453
Charging P. 460 Fuel Economy and CO
2 Emissions P. 475
Maintenance Under the Hood P. 486 Replacing Light Bulbs P. 500
Checking and Maintaining Tires P. 505 12-Volt Battery P. 514 Remote Transmitter Care P. 516
Accessories and Modifications P. 525
Power System Won’t Start P. 541 If the 12-Volt Battery Is Dead P. 545 Overheating P. 548
Fuses P. 559 Emergency Towing P. 567
If You Cannot Open the Charge Lid P.569 If You Cannot Open the Trunk P. 570
Devices that Emit Radio Waves P. 575 Reporting Safety Defects P. 576
Authorized Manuals P. 582 Customer Service Information P. 583
Quick Reference GuideP. 6
Safe DrivingP. 41
Instrument PanelP. 87
ControlsP. 137
FeaturesP. 205
DrivingP. 373
MaintenanceP. 477
Handling the UnexpectedP. 527
InformationP. 571
IndexP. 585
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36
Quick Reference Guide
Handling the Unexpected (P 527)
Flat Tire (P 528)
●Park in a safe location and repair the flat
tire using the temporary tire repair kit.
Indicators Come On
(P 551)
●Identify the indicator and consult the
owner’s manual.
Power System Won’t Start
(P 541)
●If the 12-volt battery is dead, jump start
using a booster battery.
Blown Fuse

(P 559)
●Check for a blown fuse if an electrical
device does not operate.
Overheating (P 548)
●Park in a safe location. If you do not see
steam under the hood, open the hood,
and let the power system cool down.
Emergency Towing
(P 567)
●Call a professional towing service if you
need to tow your vehicle.
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Continued145
uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
Controls
■Locking the doors
Press the lock button.
Once: u Some exterior lights flash, all the doors
lock, and the security system sets.
Twice (within five se conds after the first
push):
u The beeper sounds and verifies the
security system is set.
■Unlocking the doors
Press the unlock button.
Once: u Some exterior lights flash twice, and the
driver’s door unlocks.
Twice:
u The remaining doors unlock.
■Using the Remote Transmitter1Using the Remote Transmitter
If you do not open a door within 30 seconds of
unlocking the vehicle with the remote transmitter,
the doors will auto matically relock.
You can change the relock timer setting. 2 Customized Features P. 308
You can lock or unlock doors using the remote
transmitter only when the power mode is in VEHICLE
OFF.
The remote transmitter us es low-power signals, so
the operating range may vary depending on the
surroundings.
The remote will not lock th e vehicle when a door is
open.
If the distance at which the remote transmitter works
varies, the batter y is probably low.
If the LED does not come on when you press a
button, the battery is dead. 2 Replacing the Button Battery P. 516
You can customize the door unlock mode setting. 2 Customized Features P. 308
LED
Unlock
Button Lock
Button
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uuSecurity System uSecurity System Alarm
156
Controls
■Setting the security system alarm
The security system alarm automatically sets when the following conditions have
been met:
• The power mode is set to VEHICLE OFF (LOCK).
• The hood is closed.
• All doors and the trunk are locked from outside with the key, remote transmitter
or smart entry system.
■When the security system alarm sets
The security system alarm indicator in the instrument panel blinks. When the
blinking interval changes after about 15 seconds, the security system alarm is set.
■To cancel the security system alarm
The security system alarm is canceled when the vehicle is unlocked using the remote
transmitter, smart entry system, or the power mode is set to ON. The security system
alarm indicator goes off at the same time.
1 Security System Alarm
Do not set the security system alarm when someone
is in the vehicle or a window is open. The system can
accidentally activate when:
•Unlocking the door with the lock tab.•Opening the trunk with the trunk opener or the
emergency trunk opener.
•Opening the hood with the hood release.
If the 12-volt battery goes dead after you have set the
security system alarm, the security alarm may go off
once the 12-volt battery is recharged or replaced.
If this occurs, deactivate the security system alarm by
unlocking a door using the ke y, remote transmitter or
smart entry system.
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208
uuAudio System uAudio System Theft Protection
Features
Audio System Theft Protection
The audio system is disabled when it is disconnected from the power source, such as
when the 12-volt battery is disconnected or goes dead. In certain conditions, the
system may display a code entry screen. If this occurs, reactivate the audio system.
■Reactivating the audio system
1. Set the power mode to ON.
2. Turn on the audio system.
3. Select and hold the audio system power icon for more than two seconds.
u The audio system is reac tivated when the audio co ntrol unit establishes a
connection with the vehicle control unit. If the control unit fails to recognize
the audio unit, you must go to a dealer and have the audio unit checked.
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437Continued
Driving
Braking
Brake System
Use the parking brake to keep the vehicle stationary when parked. When the
parking brake is applied, you can manu ally or automatically release it.
■To apply
The electric parking brake can be applied any
time the vehicle has battery, no matter which
position the power mode is in.
Pull the electric parking brake switch up gently
and securely. u The parking brake and brake system
indicator (red) comes on.
■To release
The power mode must be in ON in order to
release the electric parking brake.
1. Depress the brake pedal.
2. Press the electric parking brake switch.
u The parking brake and brake system
indicator (red) goes off.
Manually releasing the parking brake using
the switch helps your vehicle start slowly and
smoothly when facing down hill on steep hills.
■Parking Brake1 Brake System
When you depress the brak e pedal, you may hear a
whirring sound from the engine compartment. This is
because the brake system is in operation, and it is
normal.
1 Parking Brake
You may hear the electric parking brake system
motor operating from the re ar wheel area when you
apply or release the parki ng brake. This is normal.
The brake pedal may slightly move due to the electric
parking brake system opera tion when you apply or
release the parking br ake. This is normal.
You cannot apply or release the parking brake if the
12-volt battery goes dead. 2 If the 12-Volt Battery Is Dead P. 545
If you pull up and hold the electric parking brake
switch while driving, the brakes on all four
wheels are applied by the electric servo brake
system until the vehicle comes to a stop. The
electric parking brake then applies, and the
switch should be released.
Electric Parking
Brake Switch
Electric Parking
Brake Switch
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514
Maintenance
12-Volt Battery
Checking the 12-Volt Battery
Check the battery condition monthly. Look at
the test indicator window and check the
terminals for corrosion.
The battery condition is monitored by the
sensor on the negative terminal. If there is a
problem with the sensor, the warning
message on the driver information interface
will let you know. Have your vehicle checked
by a dealer.
If your vehicle’s battery is disconnected or goes dead:
• The audio system is disabled.
2 Reactivating the audio system P. 208
•The clock resets.
2 Clock P. 138
•The vehicle cannot be charged. After reconnecting the batte ry, turn the power
system on, then turn it off.
Confirm that charging is possible.
2 Turning on the Power P. 380
2 Charging P. 460
•
The immobilizer system needs to be reset.
2 Immobilizer System Indicator P. 100
112-Volt Battery
WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.
The test indicator’s color in formation is on the battery.
When you find corrosion, cl ean the battery terminals
by applying a baking powder and water solution.
Clean the terminals with a damp towel. Cloth/towel
dry the battery. Coat the terminals with grease to
help prevent future corrosion.
3WARNING
The battery gives off explosive hydrogen
gas during normal operation.
A spark or flame can cause the battery to
explode with enough force to kill or
seriously hurt you.
When conducting any battery
maintenance, wear prot ective clothing and
a face shield, or have a skilled technician do
it.
Test Indicator Window
Canadian models only
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527
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
If a Tire Goes FlatTemporarily Repairi ng a Flat Tire....... 528
Handling of the Jack ......................... 540
Power System Won’t Start Checking the Procedure ................... 541
If the Smart Entry Remote Battery is Weak .......................................... 543
Emergency Power System Off........... 544
If the 12-Volt Battery Is Dead .......... 545
Overheating How to Handle Overheating ............. 548
Indicator, Coming On/Blinking
If the Low Oil Pressure Warning Appears .. 551
If the 12-Volt Battery Charging System Indicator Comes On ....................... 552
If the Malfunction Indicator Lamp Comes
On or Blinks ..................................... 553
If the Brake System Indicator (Red) Comes On or Blinks ....................................... 554
If the Electric Power Steering (EPS) System Indicator Comes On ........................... 555
If the Brake System Indicator (Red) Comes On or Blinks at the Same Time
When the Brake System Indicator
(Amber) Comes On ...................... 556
If the Low Tire Pressure/TPMS Indicator
Comes On or Blinks ....................... 557
If the Transmission System Indicator Blinks
along with the Warning Message ...... 558
Fuses Fuse Locations ................................. 559
Inspecting and Changing Fuses ........ 566
Emergency Towing ........................... 567
If You Cannot Unlock the Fuel Fill Door.. 568If You Cannot Open the Charge Lid ... 569
If You Cannot Open the Trunk ........ 570
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