Hyundai Elantra (CN7): Accessing Your Vehicle / Smart Key

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

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.

1. Close all doors, engine hood and trunk. 2. Carry the smart key. 3. Either press the door handle button or press the Door Lock button (1) on the smart key.

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Components and components location

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Hyundai Elantra (CN7) 2021-2025 Service Manual: Mode Control Actuator

Description and operation DescriptionThe mode control actuator is located at the heater unit.It adjusts the position of the mode door by operating the mode control actuator based on the signal of the A/C control unit. Pressing the mode select switch makes the mode control actuator shift in order of Vent → Bi-Level → Floor → Mix.

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