Hyundai Elantra (CN7): Button Engine Start System / Start/Stop Button

Components and components location

Component

Repair procedures

Removal
1.
Disconnect the negative(-) battery terminal.
2.
Remove the AVN Head unit.
(Refer to Body Electrical System - "AVN(Audio Video Navigation) head unit")
3.
Loosen the mounting screws and remove the start/stop button (A).

Installation
1.
Install the start/stop button.
2.
Install the AVN head unit.
3.
Connect the negative (-) battery terminal.

    Component Location1. Smart key unit (IBU)2. Interior antenna 23. outside door handle4. Interior antenna 15. FOB Key6. Door antenna1. Bumper antenna2. Trunk antenna

    Other information:

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

    Description and operation DiscriptionMonitor the air quality inside the vehicle in real time (PM sensor) and display the status on the screen.Automatically operate when fine dust concentration is high (Condition: Bet mode + A/C ON + 3rd speed or higher) Components and components location Components Location1.

    Hyundai Elantra (CN7) 2021-2026 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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