Hyundai Elantra (CN7): Remote Key / Remote key precautions

The remote key will not work if any of the following occur:

  • The key is in the ignition switch.
  • You exceed the operating distance limit (about 33 feet [10 m]).
  • The remote key battery is weak.
  • Other vehicles or objects may be blocking the signal.
  • The weather is extremely cold.
  • The remote key is close to a radio transmitter such as a radio station or an airport which can interfere with normal operation of the remote key.

If the remote key does not work correctly, open and close the door with the mechanical key. If you have a problem with the remote key contact an authorized HYUNDAI dealer.

If the remote key is in close proximity to your mobile phone, the signal could be blocked by your mobile phone’s normal operational signals. This is specifically relevant when the phone is active such as making and receiving calls, text messaging, and/or sending/receiving emails.

When possible, avoid placing the remote key and your mobile phone in the same location such as a pants or jacket pocket in order to avoid interference between the two devices.

Information

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.

2. This device must accept any interference received, including interference that may cause undesired operation.

3. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the device.

NOTICE

Keep the remote key away from electromagnetic materials that block electromagnetic waves to the key surface.

    If the remote key does not operate normally, you can lock or unlock the driver’s door by using the mechanical key. To unfold the mechanical key, press the release button on the remote.

    If the remote key is not working properly, try replacing the battery with a new one. Battery Type: CR2032 To replace the battery: 1. Insert a slim tool into the slot and gently pry open the cover.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Compressor

    Description and operation DescriptionThe compressor is the power unit of the A/C system.It is located on the side of engine block and driven by a V-belt of the engine.The compressor changes low pressure and low temperature refrigerant gas into high pressure and high temperature refrigerant gas.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Evaporator Temperature Sensor

    Description and operation DescriptionThe evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC).

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