
113
uuIndicators uDriver Information Interface Wa rning and Information Messages
Continued
Instrument Panel
MessageConditionExplanation
•Appears when you close the door with the power 
mode in ON without the remote inside the vehicle.•Disappears when you bring the remote back inside the 
vehicle and close the door.
2 Remote Reminder  P. 200
•Appears when the remote battery becomes weak.•Replace the battery as soon as possible.
2 Replacing the Button Battery  P. 710
•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. 735
•Appears if you press the  ENGINE START/STOP 
button while the vehicle is moving.
2 Emergency Engine Stop  P. 736
•Appears after the driver’s  door is opened when the 
power mode is in ACCESSORY.• Press and hold the  ENGINE START/STOP  button with 
your foot off the brake pedal to change the power 
mode to VEHICLE OFF.
• Appears when you attempt to change to another 
gear position with the transmission in 
(P and the 
engine OFF.
• To select another gear position while in (P, the engine 
must be ON.
• Appears when you set the power mode to OFF while 
driving.•Immediately stop in a safe place, set the parking brake, 
then restart the engine. If the message disappears, 
continue driving.
21 US ODYSSEY-31THR6310.book  113 ページ  2020年6月17日 水曜日 午後2時46分 

156
Controls
Locking and Unlocking the Doors
Key
This vehicle comes with the following keys:
Use the keys to start and stop the engine, and to lock and unlock all the doors, 
tailgate, and fuel fill door.1Key
All of the keys have an  immobilizer system. The 
immobilizer system helps to  protect against vehicle 
theft. 2 Immobilizer System  P. 191
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 or 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 
engine start. 2 Remote Engine Start with Vehicle 
Feedback
* P. 554
Models with smart entry system
Models without smart 
entry systemModels with smart 
entry system
Models with smart entry system, power 
sliding door, and power tailgateModels with smart entry system 
and power sliding door
* Not available on all models
21 US ODYSSEY-31THR6310.book  156 ページ  2020年6月17日 水曜日 午後2時46分 

157
uuLocking and Unlocking the Doors uKey
Controls
The built-in key can be used to lock/unlock the 
doors and tailgate 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
Release Knob
Built-in Key
■Key Number Tag
1 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.
21 US ODYSSEY-31THR6310.book  157 ページ  2020年6月17日 水曜日 午後2時46分 

uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
164
Controls
■Unlocking the doors and tailgate
Press the unlock button.
Once: u Some exterior lights flash twice, and the driver’s door and fuel fill door unlocks.
Twice: u The remaining doors and the tailgate unlock.
If the lock or unlock button of the remote does not work, use the key instead. Fully insert the key and turn it.
■Locking/Unlocking the Doors Using a Key
1Using the Remote Transmitter
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. 710
You can customize the door unlock mode setting. 2 Vehicle Customization  P. 143
2 Customized Features  P. 465
Models with color audio system
Models with Display Audio
1Locking/Unlocking the Doors Using a Key
When you lock the driver’s door with a key, all of the 
other doors, tailgate, and fu el fill door lock at the 
same time. When unlock ing, the driver’s door 
unlocks first. Turn the key  a second time within a few 
seconds to unlock the remaining doors and the 
tailgate.
You can customize the door unlock mode setting.
2 Vehicle Customization  P. 143
2 Customized Features  P. 465
Models with color audio system
Models with Display Audio
LockUnlock
21 US ODYSSEY-31THR6310.book  164 ページ  2020年6月17日 水曜日 午後2時46分 

191Continued
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.  Electronic devices, such as televisions 
and audio systems emit strong magnetic  fields. Note that even a key chain can 
become magnetic.
Security System Alarm
The security system alarm activates when  the tailgate, hood, or doors are forcibly 
opened.
The alarm does not activate if the tailgate or doors are opened with the key, remote 
transmitter or smart entry system
*.
However, the alarm activates if a door  is opened with the key, then the hood is 
opened before the power mode is set to ON.
■When the security system alarm activates
The horn sounds intermittently,  and some exterior lights flash.
1Immobilizer 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.
Canadian models only:  Apply and hold the brake 
pedal before turning the vehicle on the first time after 
the battery has been disconnected.
1 Security System Alarm
The security system alarm continues for a maximum 
of two minutes until the  security system alarm 
deactivates.
* Not available on all models
21 US ODYSSEY-31THR6310.book  191 ページ  2020年6月17日 水曜日 午後2時46分 

uuSecurity System uSecurity System Alarm
192
Controls
■To deactivate the security system alarm
Unlock the vehicle using remote  transmitter or smart entry system*, or set the power 
mode to ON. 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.
• The hood is closed.
• All doors and the tailgate 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, or smart entry 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 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 hood with the hood release.
•Opening the tailgate with the power tailgate 
button on the dashboard.
If the battery goes dead after you have set the 
security system alarm, the security alarm may activate 
once the battery is re charged or replaced.
If this occurs, deactivate the security system alarm by 
unlocking a door using the  remote transmitter or 
smart entry system
*.
Do not alter the system or  add other devices to it.
Doing so may damage the system and make your 
vehicle inoperable.
Models with power tailgate
* Not available on all models
21 US ODYSSEY-31THR6310.book  192 ページ  2020年6月17日 水曜日 午後2時46分 

Continued555
uuWhen Driving uStarting the Engine
Driving
■To stop the engine1Remote Engine Start with Vehicle Feedback*
•Another registered remo te is in the vehicle.•There is any 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 telematics unit* malfunctions.
•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 not set.•The door is unlocked with the built-in key.
•The hood is open, or any  door, or the tailgate is 
unlocked.
•Any door is open.
•The transmission is in a position other than ( P.
•The engine coolant temper ature is extremely high.
•The battery is low.•The engine oil pressure is low.
•The Malfunction Indicator Lamp comes on if there 
is a problem with the emissions control systems.
Press and hold the   
button for one second.
The exterior lights will not flash when the remote 
is out of the smart entry system range.
The engine will not stop.Go within the range, 
and try again.
The exterior lights flash once if 
the engine stops successfully.
* Not available on all models
21 US ODYSSEY-31THR6310.book  555 ページ  2020年6月17日 水曜日 午後2時46分 

710
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.1 Replacing 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 
transmitter 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
21 US ODYSSEY-31THR6310.book  710 ページ  2020年6月17日 水曜日 午後2時46分