Hyundai Ioniq (AE): Battery (12 Volt, Plug-In Hybrid Vehicle) / Battery Recharging

WARNING

Always follow these instructions when recharging your vehicle's battery to avoid the risk of SERIOUS INJURY or DEATH from explosions or acid burns:

  • Before performing maintenance or recharging the battery, turn off all accessories and place the Engine Start/ Stop button in the OFF position.
  • Keep all flames, sparks, or smoking materials away from the battery.
  • Always work outdoors or in an area with plenty of ventilation.
  • Wear eye protection when checking the battery during charging.
  • The battery must be removed from the vehicle and placed in a well ventilated area.
  • Watch the battery during charging, and stop or reduce the charging rate if the battery cells begin boiling violently.
  • The negative battery cable must be removed first and installed last when the battery is disconnected. Disconnect the battery charger in the following order:
    (1) Turn off the battery charger main switch. (2) Unhook the negative clamp from the negative battery terminal. (3) Unhook the positive clamp from the positive battery terminal.
  • Always use a genuine HYUNDAI approved battery when you replace the battery.

By jump starting

After a jump start from a good battery, drive the vehicle for 20-30 minutes before it is shutoff. The vehicle may not restart if you shut it off before the battery had a chance to adequately recharge. See "Jump Starting" in chapter 6 for more information on jump starting procedures.

Information

An inappropriately disposed battery can be harmful to the environment and human health. Dispose of the battery according to your local law(s) or regulations.

    Keep the battery securely mounted. Keep the battery top clean and dry. Keep the terminals and connections clean, tight, and coated with petroleum jelly or terminal grease.

    The following items may need to be reset after the battery has been discharged or the battery has been disconnected. See chapter 3 or 4 for: Power Windows Trip Computer Climate Control System Clock Audio System Sunroof Driver Position Memory System

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Mode Control Actuator. Repair procedures

    Inspection1.Turn the ignition switch OFF.2.Disconnect the mode control actuator connector.3.Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.Verify that the mode control actuator operates to the vent mode when connected in reverse.

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Description and operation

    DescriptionRear view monitor (RVM) will activate when the backup light is ON with the ignition switch ON and the shift lever in the R position.This system is a supplemental system that shows behind the vehicle through the AV monitor while backing-up.    • This system is a supplementary function only.

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