Hyundai Elantra Owners and Service Manuals

Hyundai Elantra: Inside Rearview Mirror / Electrochromic mirror (ECM) with HomeLink® system

Hyundai Elantra (CN7) 2021-2023 Owner's Manual / Convenient Features / Mirrors / Inside Rearview Mirror / Electrochromic mirror (ECM) with HomeLink® system

Your vehicle may be equipped with a Gentex Automatic-Dimming Mirror with an Integrated HomeLink® Wireless Control System.

During nighttime driving, this feature will automatically detect and help reduce rearview mirror glare. The HomeLink® Universal Transceiver allows you to activate your garage door(s), electric gate, home lighting, etc.

(1) HomeLink Channel 1
(2) HomeLink Channel 2
(3) HomeLink Channel 3
(4) Garage Door Opener Status Indicator : Closing or Closed
(5) HomeLink Operation Indicator
(6) Garage Door Opener Status Indicator : Opening or Opened
(7) HomeLink User Interface Indicator

Automatic-Dimming Night Vision Safety™ (NVS®) Mirror (if equipped)

The NVS® Mirror automatically helps reduce glare by monitoring light levels in the front and the rear of the vehicle. Any object that obstructs either light sensor will degrade the automatic dimming control feature.

Your mirror will automatically dim upon detecting glare from the vehicles traveling behind you.

The mirror defaults to the ON position each time the vehicle is started.

Integrated HomeLink® Wireless Control System

The HomeLink® Wireless Control System can replace up to three hand-held radio-frequency (RF) transmitters with a single built-in device. This innovative feature will learn the radio frequency codes of most current transmitters to operate devices such as gate operators, garage door openers, entry door locks, security systems, even home lighting. Both standard and rolling code-equipped transmitters can be programmed by following the outlined procedures.

Additional HomeLink® information can be found at:, www. or by calling 1-800-355-3515.

Retain the original transmitter of the RF device you are programming for use in other vehicles as well as for future HomeLink® programming. It is also suggested that upon the sale of the vehicle, the programmed HomeLink® buttons be erased for security purposes.


Before programming HomeLink® to a garage door opener or gate operator, make sure people and objects are out of the way of the device to prevent potential harm or damage. Do not use the HomeLink® with any garage door opener that lacks the safety stop and reverse features required by U.S. federal safety standards (this includes any garage door opener model manufactured before April 1, 1982). A garage door that cannot detect an object - signaling the door to stop and reverse - does not meet current U.S. federal safety standards. Using a garage door opener without these features increases the risk of serious injury or death.

Programming HomeLink®

Please note the following:

  • When programming a garage door opener, it is advised to park the vehicle outside of the garage.
  • It is recommended that a new battery be placed in the hand-held transmitter of the device being programmed to HomeLink® for quicker training and accurate transmission of the radiofrequency signal.
  • Some vehicles may require the Engine Start/Stop button to be in the ACC (or “Accessories”) position for programming and/or operation of HomeLink®.
  • In the event that there are still programming difficulties or questions after following the programming steps listed below, contact HomeLink® at:, com/HomeLinkGentex or by calling 1-800-355-3515.


To program most devices, follow these instructions:

1. Press and release (1), (2) or (3) button.

  • If the indicator (4) is turned ON in Orange, go to Step 3) since it is a new programming.
  • If the indicator (4) is continuously turned ON or flashes in Green rapidly several times, go to Step 2) since it is a programmed button.

2. Press and hold the button you wish to program for approximately 15- 25 seconds until the LED flashes in Orange for several times.

3. Hold the Garage Door Opener Original Transmitter near the HomeLink Mirror.

4. Press the Original Transmitter button until the indicator (4) is turned continuously ON or flashes in Green for approximately 10 seconds and it indicates the programing is completed.

5. However, the indicator (4) flashes in Green continuously, but if the garage door opener does not operate, please continue to follow the step 6 and 7 (“Rolling Code Programming” procedures).

6. Firmly press and release the “Learn,” “Smart,” or “Program” button while the indicator (4) flashes in Green. Once the button is pressed, you have approximately 30 seconds to initiate the next step.


At the garage door opener motor, (security gate motor, etc.) locate the “Learn,” “Smart,” or “Program” button. This can usually be found where the hanging antenna wire is attached to the motor-head unit (see the device’s manual to identify this button). The name and color of the button may vary by manufacturer. A ladder and/or second person may simplify the following steps.

7. Return to the vehicle and firmly press, hold for two seconds and release the HomeLink button up to three times. Do not press the HomeLink button rapidly. At this point programming is complete and your device should operate when the HomeLink button is pressed and released.


  • Some garage door openers require to press the programmed button on the mirror up to three times right after the programming is just completed to operate the garage door.
  • The indicator (4) is turned ON in Orange and flashes for about 60 seconds, during the programing mode and if a programing is not succeeded within the 60 seconds, the programing mode will be abort.

HomeLink® should now activate your rolling code equipped device.

Gate operator & Canadian programming

During programming, your handheld transmitter may automatically stop transmitting. Continue to press the Integrated HomeLink® Wireless Control System button while you press and repress (“cycle”) your handheld transmitter every two seconds until the frequency signal has been learned. The indicator light will flash slowly and then rapidly after several seconds upon successful training.

Operating HomeLink

1. Press and release one of the HomeLink buttons (1, 2 or 3) that programed.

2. The HomeLink indicator (4) will operate as below:

- Indicates Green and is continuously ON (Fixed Code Garage Door Opener)
- Flashes in Green rapidly (Rolling Code Garage Door Opener)

Erasing HomeLink® buttons

1. Press and hold the button (1) and (3) simultaneously.

2. The indicator (4) is turned continuously ON in orange for about 10 seconds.

3. Then the indicator (4) color changes to Green and flashes rapidly. Release the buttons once the green indicator flashes.

4. Now HomeLink button (1), (2) and (4) memories are all cleared.

NVS® is a registered trademark and Z-Nav™ is a trademark of the Gentex Corporation, Zeeland, Michigan. HomeLink® is a registered trademark owned by Johnson Controls, Incorporated, Milwaukee, Wisconsin.


This device complies with Part 15 of the FCC Rules.

Operation is subject to the following three 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.

3. The transceiver has been tested and complies with FCC and Industry Canada rules. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the device.

Two Way Communication Programing

1. Complete the HomeLink “Programming” first.

2. Before the first 10 times HomeLink button is pressed after the programming, the following steps MUST occur to program two way communication. (only for some older garage doors)

3. Press and release the programed HomeLink button to activate the garage door.

4. Once the garage door is stopped, press and release the “Learn” or “Smart” button on the Garage door opener within 1 minute from the time of pressing the programed HomeLink button on mirror.

5. If the both indicator (4) and (5) are flashing rapidly for about 5 seconds, the two way synchronization is completed.


Some newer garage door openers provide two-way communication synchronizing when programming the original transmitter.

Operating Two Way Communication

1. Press and release (1), (2) or (3) button.

2. The indicator (4) and (5) operates as below:

- If the indicator (4) flashes in Orange, it indicates that the garage door is “closing”.
- If the indicator (4) is ON continuously in Green, it indicates that the garage door is “closed”.
- If the indicator (5) flashes in Orange, it indicates that the garage door is “Opening”.
- If the indicator (5) is ON continuously in Green, it indicates that the garage door is “Opened”.
- If the indicator (4) or (5) does not turn to Green, it indicates that the last status of garage door was not received properly. The HomeLink mirror tries to receive the last known status of the garage door for a few seconds.

Recalling Garage Door Status

Homelink mirror with two way communication provides a way to view the last stored message from the garage door opener. In order to recall the last known status of the last activated device, press the buttons “1 and 2” OR “2 and 3” simultaneously.

  • If the indicator (4) is ON continuously in Green, it indicates that the last activated device was “closed” properly.
  • If the indicator (5) is ON continuously in Green, it indicates that the last activated device was “open” properly.


Two way communication range distance between “vehicle” and “garage door opener” is 100m.

The range may be reduced or increased a little due to obstacle conditions around the garage door opener, such as houses or trees.

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