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

Hyundai Elantra (CN7) 2021-2025 Service Manual / Body Electrical System / 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.

❮Components and components location

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

Immobilizer System❯

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Ambient Temperature Sensor

Description and operation DescriptionThe ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperature.

Hyundai Elantra (CN7) 2021-2025 Service Manual: Rear Corner Radar Unit