Hyundai Elantra Owners Manual
Hyundai Elantra: Smart key (if equipped)
Seat belts are your first line of defense in a crash. This section of the Hyundai Elantra manual explains the correct way to wear and care for your seat belts.
Smart key function
1.Door lock
2.Door unlock
3.Trunk unlock
4.Panic
With a smart key, you can lock or unlock a door (and trunk) and even start the engine without inserting the key. Refer to the following for more details.
Locking
Using the door handle button
1.Close all doors, engine hood and trunk.
2.Press the button of the outside door handle.
3.The hazard warning lights will blink and the chime will sound once.
4.Make sure that doors are locked by checking the door lock button inside the vehicle or pulling the outside door handle.
✽ NOTICE
- The button will only operate when the smart key is within 28~40in. (0.7~1m) from the outside door handle.
- Even though you press the outside door handle button, the doors will not
lock and the chime will sound for 3 seconds if any of following occur:
- The smart key is in the vehicle.
- The engine start/stop button is in ACC or ON position.
- Any door except the trunk is open.
WARNING
Leaving children unattended in a vehicle with the smart key is dangerous. Children copy adults and they could press the engine start/stop button. It would enable children to operate power windows or other controls, or even make the vehicle move, which could result in serious bodily injury or even death. Never leave the keys in your vehicle with unsupervised children.
Using the button on the smart key
1 Close all doors, engine hood and trunk.
2.Press the lock button(1).
3.The hazard warning lights will blink and the chime will sound once.
4.Make sure that doors are locked by checking the door lock button inside or pulling the outside door handle.
Unlocking
Using the door handle
1.Press the button of the driver's outside door handle.
2.The driver’s door will unlock. The hazard warning lights will blink and the chime will sound two times.
3.Press the button once more with in 4 seconds.
4.All doors will unlock and the hazard warning lights will blink and the chime will sound two times.
❈If you press the button of the front passenger’s outside door handle while carrying the smart key, all doors will unlock.
✽ NOTICE
- The button will only operate when the smart key is within 28~40in. (0.7~1m) from the outside door handle.
- When the smart key is recognized in the area of 28~40in. (0.7~1m) from the front outside door handle, other people can also open the doors.
- After unlocking the driver’s door or all doors, the door(s) will lock automatically unless the door is opened.
Using the button on the smart key
1.Press the unlock button (2) of the smart key.
2.The driver’s door will unlock. The hazard warning lights will blink and the chime will sound two times.
3.Press the unlock button (2) once more within 4 seconds.
4. All doors will unlock. The hazard warning lights will blink and the chime will sound two times.
✽ NOTICE
After pressing the button, the doors will lock automatically unless any door is opened within 30 seconds.
Trunk unlocking
Using the trunk handle button
1.Carry the smart key.
2. Press the trunk handle button.
3.When all doors are locked, the hazard warning lights will blink two times.
Once the trunk is opened and then closed, the trunk will lock automatically.
✽ NOTICE
The button will only operate when the smart key is within 28~40in. (0.7~1m) from the trunk handle.
Using the button on the smart key
1.Press the trunk unlock button(3) for more than 1 second.
2.When all doors are locked, the hazard warning lights will blink two times.
Panic
1.Press the panic button(4) for more than 1.5 second.
2.The horn sounds and hazard warning light flash for about 30 seconds.
✽ NOTICE
To stop the horn and lights, press any button on the smart key.
Start-up
You can start the engine without inserting the key. For detailed information refer to the “Engine start/stop button” in section 5.
Loss of the smart key
A maximum of 2 smart keys can be registered to a single vehicle.
If you happen to lose your smart key, you will not be able to start the engine. You should immediately take the vehicle and remaining key to your authorized HYUNDAI dealer(tow the vehicle, if necessary) to protect it from potential theft.
Smart key precautions
- The smart key will not work if any of the following occur:
- The smart key is close to a radio transmitter such as a radio station or an airport which can interfere with normal operation of the smart key.
- The smart key is near a mobile two way radio system or a cellular phone.
- Another vehicle’s smart key is being operated close to your vehicle.
- When the smart key does not work correctly, open and close the door with the mechanical key and contact an authorized HYUNDAI dealer.
CAUTION
Keep the smart key away from water or any liquid. If the keyless entry system is inoperative due to exposure to water or other liquids, it will not be covered by your manufacturer’s vehicle warranty.
Smart key immobilizer system
Your vehicle is equipped with an electronic engine immobilizer system to reduce the risk of unauthorized vehicle use.
Your immobilizer system is comprised of a small transponder in the smart key and electronic devices inside the vehicle.
With the immobilizer system, whenever you turn the engine start/stop button to the ON position by pressing the button while carrying the smart key, it checks and determines and verifies if the smart key is valid or not.
If the key is determined to be valid, the engine will start.
If the key is determined to be invalid, the engine will not start.
To deactivate the immobilizer system:
Turn the engine start/stop button to the ON position by pressing the button while carrying the smart key.
To activate the immobilizer system:
Turn the engine start/stop button to the OFF position. The immobilizer system activates automatically. Without a valid smart key for your vehicle, the engine will not start.
WARNING
In order to prevent theft of your vehicle, do not leave spare keys anywhere in your vehicle. Your Immobilizer password is a customer unique password and should be kept confidential. Do not leave this number anywhere in your vehicle.
✽ NOTICE
When starting the engine, do not use the key with other immobilizer keys around. Otherwise the engine may not start or may stop soon after it starts. Keep each key separate in order to avoid a starting malfunction.
CAUTION
Do not put metal accessories near the smart key.
The engine may not start because the metal accessories may interrupt the transponder signal from transmitting normally.
✽ NOTICE
If you need additional keys or lose your keys, consult an authorized HYUNDAI dealer.
CAUTION
The transponder in your smart key is an important part of the immobilizer system. It is designed to give years of trouble-free service, however you should avoid exposure to moisture, static electricity and rough handling. Immobilizer system malfunction could occur.
CAUTION
Do not change, alter or adjust the immobilizer system because it could cause the immobilizer system to malfunction and should only be serviced by an authorized HYUNDAI dealer.
Malfunctions caused by improper alterations, adjustments or modifications to the immobilizer system are not covered by your vehicle manufacturer warranty.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.
WARNING
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. If the keyless entry system is inoperative due to changes or modifications not expressly approved by the party responsible for compliance, it will not be covered by your manufacturer’s vehicle warranty.
Battery replacement
A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace the battery, contact an authorized HYUNDAI dealer.
✽ NOTICE
The circuit inside the smart key can have a problem if exposed to moisture or static electricity. If you are unsure how to use your smart key or replace the battery, contact an authorized HYUNDAI dealer.
1. Pry open the rear cover of the smart key.
2. Replace the battery with a new battery (CR2032). When replacing the battery, make sure the battery positive “+” symbol faces up as indicated in the illustration.
3. Install the battery in the reverse order of removal.
CAUTION
- The smart key is designed to give you years of trouble-free use, however it can malfunction if exposed to moisture or static electricity. If you are unsure how to use or replace the battery, contact an authorized HYUNDAI dealer.
- Using the wrong battery can cause the smart key to malfunction. Be sure to use the correct battery.
- To avoid damaging the smart key, don't drop it, get it wet, or expose it to heat or sunlight.
WARNING
An inappropriately disposed battery can be harmful to the environment and human health.
Dispose the battery according to your local law(s) or regulation.
Hyundai’s smart key system redefines driver access by combining security, automation, and ease of use. This section guides you through its responsive design, including keyless entry, remote start, and trunk access. Appreciating how each function works—and when it’s best used—ensures that this technology becomes a trusted part of your driving routine, not a source of confusion.
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