Hyundai Elantra (CN7): Body Electrical System / Immobilizer System

Components and components location Component Repair procedures Removal1.Disconnect the negative(-) battery terminal.2.Remove the AVN Head unit.

DescriptionThe immobilizer system will disable the vehicle unless the proper ignition key is used, in addition to the currently available anti-theft systems such as car alarms, the immobilizer system aims to drastically reduce the rate of auto theft.

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Hyundai Elantra (CN7) 2021-2026 Service Manual: Start/Stop Button

Components and components location Component Repair procedures Removal1.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).

Hyundai Elantra (CN7) 2021-2026 Service Manual: Parking Distance Warning (PDW)

Description and operation Description• PDW consists of 8 sensors (front : 4 units, rear : 4 units) that are used to detect obstacles and transmit the result in three separate warning levels, the first, second and third to IBU via LIN communication.

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