Hyundai Elantra (CN7): Remote Key / Battery replacement

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.

2. Using a screw driver, remove the battery cover.

3. Remove the old battery and insert the new battery. Make sure the battery position is correct.

4. Reinstall the battery cover and key cover in the reverse order of removal.

If you suspect your remote key might have sustained some damage, or you feel your remote key is not working correctly contact an authorized HYUNDAI dealer.

Information

An inappropriately disposed battery can be harmful to the environment and human health. Dispose of the battery according to your local law(s) or regulation.

    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]).

    Your HYUNDAI uses a smart key, which you can use to lock or unlock a door (and trunk) and even start the engine even just carrying the key. (1) Door Lock (2) Door Unlock (3) Trunk Open (4) Panic (5) Remote Start

    Other information:

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    Hyundai Elantra (CN7) 2021-2026 Service Manual: Heater Unit

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