2020 HONDA ACCORD SEDAN key battery

114
uuIndicators uDriver Information Interface Wa rning and Information Messages
Instrument Panel
MessageConditionExplanation
●Appears if the remote battery is too weak to start the
engine or the key is not within operating range to
start the engine.
A beeper sounds six times.●Bring the remote in front of the ENGINE START/STOP
button to be touched with.
2 If the Remote Battery is Weak P. 676
●Appears when the starter system has a problem.●As a temporary measure, press and hold the ENGINE
START/STOP button for up to 15 seconds while
pressing the brake pedal and clutch pedal (manual
transmission only), manu ally start the engine.
Have your vehicle checked by a dealer.
●Appears as soon as a problem is detected in the
smart entry system* or push button starting system.
●Have your vehicle checked by a dealer.
U.S.
Canada
* Not available on all models

166
Controls
Locking and Unlocking the Doors
Key Types and Functions
This vehicle comes with the following keys:
Use the key to start and stop the engine, and to lock and unlock all the doors, fuel
fill door and to open the trunk.
You can also use the remote transmitter or smart entry system
* to lock and unlock
all the doors, fuel fill door and to open the trunk.
1 Key Types and Functions
All the keys have an immobilizer system. The
immobilizer system helps to protect against vehicle
theft. 2 Immobilizer System P. 183
Follow the advice below to prevent damage to the
keys:
•Do not leave the keys in direct sunlight, or in
locations with high temperature or high humidity.
•Do not drop the keys or set heavy objects on them.•Keep the keys away from liquids, dust and sand.
•Do not take the keys apart except for replacing the
battery.
If the circuits in the keys are damaged, the engine
may not start, and the remote transmitter may not
work.
If the keys do not work properly, have them
inspected by a dealer.
You can remotely start the engine using the remote.
2 Remote Engine Start with Vehicle
Feedback
* P. 471
Models with remote engine starter
Models without smart entry system
Models with smart entry system
Models with smart entry system and
remote engine starter
* Not available on all models

167
uuLocking and Unlocking the Doors uKey Types and Functions
Controls
The built-in key can be used to lock/unlock the
doors or open the trunk when the remote
battery becomes weak and the power door
lock/unlock operation is disabled.
To remove the built-in key, slide the release
knob and then pull out the key. To reinstall
the built-in key, push the built-in key into the
remote until it clicks.
Contains a number that you will need if you
purchase a replacement key.
■Built-in Key
Built-in Key
Release Knob
■Key Number Tag1
Key Number Tag
Keep the key number tag separate from the key in a
safe place outside of your vehicle.
If you wish to purchase an additional key, contact a
dealer.
If you lose your key and you cannot start the engine,
contact a dealer.

183
Controls
Security System
Immobilizer System
The immobilizer system prevents a key that has not been pre-registered from
starting the engine. Each key contains electronic transmitters that use electronic
signals to verify the key.
Pay attention to the follo wing when pressing the ENGINE START/STOP button:
• Do not allow objects that emit strong radio waves near the ENGINE START/
STOP button.
• Make sure the key is not covered by or touching a metal object.
• Do not bring a key from another vehicle’s immobilizer system near the ENGINE
START/STOP button.
• Do not put the key near magnetic items. El ectronic device, such as televisions and
audio systems emit strong magnetic fiel ds. Note that even a key chain can
become magnetic.1 Immobilizer System
NOTICE
Leaving the key in the vehicl e can result in theft or
accidental movement of the vehicle.
Always take the key with you whenever you leave the
vehicle unattended.
Do not alter the system or add other devices to it.
Doing so may damage the system and make your
vehicle inoperable.
Apply and hold the brake pedal before turning the
vehicle on the first time after the battery has been
disconnected.
Canadian models

184
uuSecurity System uSecurity System Alarm
Controls
Security System Alarm
The security system alarm activates wh en the trunk, hood or doors are forcibly
opened. The alarm does not activate if th e trunk or doors are opened with the key,
remote transmitter, or smart entr y with push button start system
*.
However, the alarm activates if a door is opened with the key and then the
transmission is taken out of
(P (continuously variable transmission models) or the
hood is opened before the power mode is in ON.
■When the security sy stem alarm activates
The horn sounds intermittently, and some the exterior lights flash.
■To deactivate the security system alarm
Unlock the vehicle using the key, remote transmitter or smart entry with push
button start system
*. The system, along with the horn and flashing lights, is
deactivated.
■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 trunk are locked from outsid e with the key, remote transmitter, or
smart entry with push button start system
*.
■When the security system alarm sets
The security system alarm indicator in the instrument panel blinks and the blinking
interval changes after about 15 seconds.
■To cancel the security system alarm
The security system alarm is canceled when the vehicle is unlocked using the key*,
remote transmitter or smart entry with push button start system*, or when the power
mode is set to ON. The security system alarm indicator goes off at the same time.
1 Security System Alarm
Do not alter the system or add other devices to it.
Doing so may damage the system and make your
vehicle inoperable.
The security alarm continues for a maximum of two
minutes until the security system alarm deactivates.
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.
•Taking the transmission out of ( P.
If the battery goes dead after you have set the
security system alarm, the security alarm may go off
once the battery is re charged or replaced.
If this occurs, deactivate the security system alarm by
unlocking a door using the ke y, remote transmitter,
or smart entry with push button start system
*.
Continuously variable transmission models
* Not available on all models

uuWhen Driving uStarting the Engine
472
Driving
■To stop the engine1Remote Engine Start with Vehicle Feedback*
•You have already used the remote twice to start
the engine.
•Another registered remo te is in the vehicle.
•There is an antenna failure.•The door is unlocked with the built-in key.
•The engine oil pressure is low.
•The engine coolant temper ature is extremely high.•The security system alarm is not set.
The engine may stop whil e it is running if:
•You do not start the vehicl e within 10 minutes of
starting the engine with the remote.
•The engine is stopped by using the remote.•The security system alarm is activated.
•The door is unlocked with the built-in key.
•The hood is open.•The engine coolant temper ature is extremely high.
•The battery is low.
•The engine oil pressure is low.
•The malfunction indicator lamp (MIL) comes on if
there is a problem with the emissions control
systems.
•You press the ENGINE START/STOP button
without depressing the brake pedal.
•The transmission is in a position other than ( P.
•You press the shift lever release button.
Automatic transmission models
Continuously variable transmission models
Press and hold the
button for one second.
Go within the range,
and try again.
The exterior lights flash once if the engine stops successfully.
The exterior lights will not flash when the remote is out of
the smart entry system range.
The engine will not stop.
* Not available on all models

657
Maintenance
Remote Transmitter Care
Replacing the Button Battery
If the indicator does not come on when the button is pressed, replace the battery.
1. Remove the built-in key.
2. Remove the upper half of the cover by
carefully prying on the edge with a coin.
u Wrap a coin with a cloth to prevent
scratching the remote.
u Remove carefully to avoid losing the
buttons.
3. Make sure to replace the battery with the
correct polarity.1Replacing the Button Battery
NOTICE
An improperly disposed of battery can damage the
environment. Always conf irm local regulations for
battery disposal.
Replacement batteries are commercially available or
at a dealer.
3WARNING
CHEMICAL BURN HAZARD
The battery that powers the remote can
cause severe internal burns and can even
lead to death if swallowed.
Keep new and used batteries away from
children.
If you suspect that a child has swallowed
the battery, seek medical attention
immediately.
Battery type: CR2032
Battery

719
Index
Continuously Variable TransmissionCreeping................................................. 476
Fluid ....................................................... 631
Kickdown ............................................... 476
Operating the Shift Lever .......... 23, 485, 487
Shift Lever Does Not Move ...................... 681
Shifting ........................................... 484, 486
Controls .................................................... 163
Coolant (Engine) ...................................... 629
Adding to the Engine Coolant Reserve Tank ..................................................... 629
Adding to the Radiator ........................... 630
Overheating ............................................ 683
Creeping (Automatic Transmission/
Continuously Variable Transmission) .... 476
Cross Traffic Monitor ............................... 594
Cup Holders .............................................. 227
Customer Service Information ................ 716
Customized Features ....................... 372, 383
D
Daytime Running Lights .......................... 197
Dead Battery ............................................ 678
Defaulting All the Settings ...................... 401
Defrosting the Windshield and Windows ................................................. 241
Devices that Emit Radio Waves ............... 709
Dimming Headlights .............................................. 194
Rearview Mirror ...................................... 209 Dipstick (Engine Oil)
................................. 622
Directional Signals (Turn Signal) ............. 193
Door Mirrors ............................................. 210
Doors ......................................................... 166
Auto Door Locking .................................. 179
Auto Door Unlocking ............................... 179
Door and Trunk Open Message ................. 37
Keys ........................................................ 166
Locking/Unlocking the Doors from the Inside ...................................... 176
Locking/Unlocking the Doors
from the Outside ................................... 169
Lockout Prevention System ...................... 175
DOT Tire Quality Grading ........................ 649
Driver Attention Monitor ........................ 152
Driver Information Interface ................... 138
Switching the Display .............................. 138
Warning and Information Messages ........ 105
Driving ....................................................... 455
Automatic Transmission/ Continuously Variable Transmission ....... 476
Braking .................................................... 575
Shifting Gear ................................... 477, 490
Shifting Position .............................. 484, 486
Starting the Engine .................................. 467
Driving Position Memory System ............. 206
Driving Support Information ................... 155
Dust and Pollen Filter ............................... 658
E
Eco Assist® System ........................................ 9
ECON Button ............................................ 494
Econ Mode Indicator.................................................... 97
Elapsed Time ............................................. 145
Electric Power Steering (EPS) System Indicator............................................ 92, 689
Electronic Stability Control (ESC) ............. 496
Emergency ................................................ 697
Emergency Engine Stop ........................... 677
Emergency Trunk Opener ........................ 182
Emissions Testing (Readiness Codes) ....... 711
Engine ....................................................... 708
Coolant ................................................... 629
Jump Starting .......................................... 678
Oil ........................................................... 621
Starting ................................................... 467
Engine Coolant ......................................... 629
Adding to the Engine Coolant Reserve Tank ...................................................... 629
Adding to the Radiator ............................ 630
Overheating ............................................ 683
Temperature Gauge ................................ 137
Engine Oil ................................................. 621
Adding .................................................... 624
Checking................................................. 622
Displaying Oil Life .................................... 612
Low Oil Pressure Warning........................ 685
Recommended Engine Oil ....................... 621
ENGINE START/STOP Button .................... 190