Warning and Indicator Lights
Ready Indicator

This indicator light comes on:
Indicates when the vehicle is ready to drive.
- ON: Normal driving is possible.
- OFF: Normal driving is not possible or a problem has occurred.
- Flashing: Emergency driving.
If the Ready indicator turns off or flashes, a problem has occurred in the system. In this case, have your vehicle inspected by an authorized HYUNDAI dealer.
Service Reminder Indicator

This indicator light illuminates:
- When the Engine Start/Stop button is in the ON position.
- Illuminates for approximately 3 seconds and then turns off. - Indicates a problem with the hybrid vehicle control system or hardware.
If the indicator light comes on while driving or does not turn off after starting the vehicle, have the vehicle inspected by an authorized HYUNDAI dealer.
EV Mode Indicator

This indicator illuminates when the vehicle is driven by the electric motor.
Charging Cable Connection Indicator (Plug-in Hybrid Vehicle)

This indicator illuminates red when the charging cable is connected.
Regenerative Brake Indicator

This indicator light illuminates:
Indicates when the regenerative brake is not functioning. The brake warning light (red) and the regenerative brake indicator (yellow) will illuminate at the same time as soon as possible.
In this case, drive the vehicle safely and have it inspected by an authorized HYUNDAI dealer.
The service brake still operates; however, brake pedal operation may be harder than normal and braking distance may increase.
Test yourself
A quick Hyundai Ioniq quiz: every answer comes with an explanation and a link to the manual page.