Hyundai Elantra Owners and Service Manuals

Hyundai Elantra: ISG (Idle Stop and Go) system / ISG System Malfunction

The ISG system may not operate:

When there is a malfunction with the ISG sensors or the ISG system.

The followings occur, when there is a malfunction with the ISG system:

  • The auto stop indicator () will illuminate in yellow on the instrument cluster.
  • The light on the ISG OFF button will illuminate.

Information

  • When you cannot turn OFF the ISG OFF button indicator by pressing the ISG OFF button, or when the malfunction with the ISG system persists, contact an authorized HYUNDAI dealer.
  • You can turn off the ISG OFF button indicator by driving over 50 mph (80 km/h) for up to 2 hours with the fan speed below the 2nd position. If the ISG OFF button indicator remains ON, contact an authorized HYUNDAI dealer.

WARNING

When the engine is in auto stop mode, the engine may restart. Before leaving the vehicle or checking the engine compartment, stop the engine placing the ignition switch to the LOCK/OFF position or remove the ignition key.

    To Deactivate the ISG System

    Press the ISG OFF button to deactivate the ISG system. Then, the ISG OFF button indicator illuminates. Press the ISG OFF button again to reactivate the ISG system...

    Battery Sensor Deactivation

    [A] : Battery sensor The battery sensor is deactivated, when the battery is disconnected from the negative pole for maintenance purpose. In this case, the ISG system is limitedly operated due to the battery sensor deactivation...

    Other information:

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


    Components Location1. Canister2. Purge control solenoid valve (PCSV)3. Fuel Tank Air Filter4. Catalytic converter (WCC)5. Catalytic converter (UCC)1. Canister 2. Purge control solenoid valve (PCSV)3. Fuel Tank Air Filter4. Catalytic converter (WCC)5. Catalytic converter (UCC)..

    Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Ignition Switch


    Key Ignition Switch WARNING To reduce the risk of SERIOUS INJURY or DEATH, take the following precautions: NEVER allow children or any person who is unfamiliar with the vehicle to touch the ignition switch or related parts. Unexpected and sudden vehicle movement can occur. NEVER reach through the steering wheel for the ignition switch, or any other control, while the vehicle is in ..

    Categories

    Rear center seat belt

    When using the rear center seat belt, the buckle with the “CENTER” mark must be used.

    WARNING

    Make sure that the seatback is locked in place when using the rear center seat belt.

    If not, the seatback may move when there is a sudden stop or collision, which could result in serious injury.

    read more

    Copyright © 2025 www.helantra7.com