Hyundai Ioniq (AE): Driving the Hybrid/Plug-in Hybrid Vehicle / Warning and Indicator Lights

Ready Indicator

Hyundai Ioniq. Warning and Indicator Lights

This indicator illuminates :

When the vehicle is ready to be driven.

- ON : Normal driving is possible.
- OFF : Normal driving is not possible, or a problem has occurred.
- Blinking : Emergency driving.

When the ready indicator goes OFF or blinks, there is a problem with the system. In this case, have your vehicle inspected by an authorized HYUNDAI dealer.

Service Warning Light

Hyundai Ioniq. Warning and Indicator Lights

This warning light illuminates :

  • When the Engine Start/Stop button is in the ON position.
    - It illuminates for approximately 3 seconds and then goes off.
  • When there is a problem with the hybrid vehicle control system or hardware.

When the warning light illuminates while driving, or does not go OFF after starting the vehicle, have your vehicle inspected by an authorized HYUNDAI dealer.

EV Mode Indicator

Hyundai Ioniq. Warning and Indicator Lights

This indicator illuminates when the vehicle is driven by the electric motor.

Charging Cable Connection Indicator (Plug-in hybrid vehicle)

Hyundai Ioniq. Warning and Indicator Lights

This indicator illuminates in red when the charging cable is connected.

Regenerative Brake Warning Light

Hyundai Ioniq. Warning and Indicator Lights

This warning light illuminates :

When the regenerative brake is not operating. This causes the Brake Warning light (red) and Regenerative Brake Warning Light (yellow) to illuminate simultaneously as soon as possible.

In this case, drive safely and have your vehicle inspected by an authorized HYUNDAI dealer.

The service brake still function, however, the operation of the brake pedal may be more difficult than normal and the braking distance can increase.

    The Aux. Battery Saver+ is a function that monitors the charging status of the 12 V auxiliary battery. If the auxiliary battery level is low, the main high voltage battery charges the auxiliary battery.

    Check Hybrid system This message is displayed when there is a problem with the hybrid control system. Refrain from driving when the warning message is displayed.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Ambient Temperature Sensor. Repair procedures

    Inspection1.Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature.1. Ambient Sensor (+)2. Sensor groundSpecification Ambient temperature [°C (°F)] Resistance between terminal 1 and 2 (

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Repair procedures

    Self Diagnosis1.Self-diagnosis process.    â€¢ When operating the self-diagnostics, the below fault (self-diagnostics code) will blink at 0.5 seconds interval on the temperature display settings (driver's side only) and the remaining symbols are OFF .

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