Hyundai IONIQ Dashboard Warning Lights

Hyundai IONIQ Dashboard Warning Lights

These are the dashboard warning lights for the Hyundai Ioniq hybrid and Ioniq plug-in. The dashboard display layout and warning light location may vary from the diagram depending on your version model of Ioniq.


1 High Beam Indicator

This blue symbol illuminates when the headlamps are on and in the high beam position.

2 Dipped Beam Indicator

This green symbol illuminates when the dipped beam headlamps are on.

3 Headlights Indicator

This green symbol illuminates when the headlights tail lamps are switched on.

4 Hyundai Ioniq Charging Cable Indicator

The charging cable connection indicator light illuminates in red when the charging cable is connected.

5 Hyundai Ioniq Master Warning Light

The triangle warning light containing an exclamation mark is the master warning light. The master warning light illuminates:

  • Low washer fluid
  • Exterior lamp malfunction
  • Forward Collision-Avoidance Assist (FCA) malfunction
  • Blind-Spot Collision Warning (BCW) System malfunction
  • Smart cruise control malfunction
  • High Beam Assist malfunction
  • Tyre Pressure Monitoring System (TPMS)
  • Service reminder



6 Exterior Light Warning

This warning light:

  • Illuminates when one of the exterior bulbs (headlamp, tail lamp, fog lamp, etc.) is not operating properly. One of the bulbs has blown and may need to be replaced.
  • Illuminates when there is a malfunction with the LED headlight (if equipped). Contact a Hyundai workshop.
  • Flashes when there is a malfunction with a LED headlight related part. Contact a Hyundai workshop.

7 Turn Signals / Hazards

These light flashes when a left or right turn signal has been applied or when the hazard warning lights have been activated. If the symbol flashes faster than normal, it may indicate a blown bulb.

8 Hyundai Ioniq Charge Gauge

This gauge displays the current remaining battery state of charge (SOC). If the SOC is near the low level, the vehicle will automatically operate the engine to charge the battery. If the ‘check engine’ warning light (24) and ‘Service Warning Light’ (17) illuminate when the SOC is near the low level, have the vehicle checked by a qualified Hyundai workshop.

9 Hyundai Ioniq Plug-in hybrid mode indicator

The vehicle is in CD (Charge Depleting, Electric) mode : The high-voltage (hybrid) battery is used to drive the vehicle.

10 Hyundai Ioniq Plug-in hybrid mode indicator

The vehicle is in CS (Charge Sustaining, Hybrid) mode : The high-voltage (hybrid) battery and gasoline engine is used to drive the vehicle.

11 Hyundai Ioniq Icy Road Warning Light

The snowflake symbol indicates possible icy road conditions. When the temperature on the outside temperature gauge is approximately below 40°F (4°C), the icy road warning light and outside temperature gauge flashes and then illuminates. Also, the warning chime sounds once.


12 Hyundai Ioniq Low Fuel Level Warning Light

This warning light comes on when the fuel tank is nearly empty. Driving with the low fuel level warning light on or with the fuel level below “E” can cause the engine to misfire and damage the catalytic converter. The arrow next to the fuel symbol indicates which side of the vehicle for the fuel filler cap.

13 Hyundai Ioniq Sports Mode

This indicator light comes on when the driver moves the shift lever to S (Sport).

14 Hyundai Ioniq ECO Mode

This indicator light comes on when the driver moves the shift lever to D (Drive).

15 Hyundai Ioniq EV Mode

The EV indicator light illuminates when the vehicle is driven by the electric motor.

16 Hyundai Ioniq Ready Indicator

The Hyundai Ioniq ready indicator light illuminates, stays off or flashes:

  • On: Normal driving is possible.
  • Off: Normal driving is not possible, or a problem has occurred. Have the vehicle checked by a qualified Hyundai workshop.
  • Flashing: Emergency driving, a problem has occurred. Have the vehicle checked by a qualified Hyundai workshop.

17 Hyundai Ioniq Service Warning Light

This HEV warning light with exclamation mark symbol illuminates for the following reasons:

  • Illuminates for about 3 seconds when you place the Engine Start/ Stop button to the ON position.
  • When there is a problem with the hybrid vehicle control system or hardware. If the warning light remains on after starting or comes on while driving, have your vehicle checked by a qualified Hyundai workshop.



18 Hyundai Ioniq Regenerative Brake Warning Light

The Hyundai Ioniq regenerative brake warning light illuminates in red for the following reasons:

  • Illuminates for around 3 seconds when you place the Engine Start/Stop button to the ON position.
  • When the regenerative brake does not operate and the brake does not perform well. This causes the Brake Warning light and Regenerative Brake Warning Light to illuminate simultaneously. The operation of the brake pedal may be more difficult than normal and the braking distance can increase. Have your vehicle checked by a qualified Hyundai workshop.

19 Hyundai Ioniq ESC Warning Light

  • ESC (Electronic Stability Control) is a vehicle stability system. This warning light illuminates:
    For around 3 seconds when you place the Engine Start/ Stop button to the ON position.
  • When there is a malfunction with the ESC system. This may be to do with the ABS sensors due to the ESC system sharing ABS components.
  • Flashes when the ESC is operating.

20 Hyundai Ioniq ESC OFF Warning Light

This light comes on when you deactivate the ESC system by pressing the ESC OFF button.

21 Tyre Pressure Warning Light

The Hyundai Ioniq tyre / tire pressure warning light:

  • Should come on for around 3 seconds when you place the Engine Start/Stop button to the ON position.
  • Will flash then remain on when a fault is detected with the monitoring system. This may be due to a tyre being fitted which does not contain a sensor (such as the spare).
  • Will remain constantly lit when one or more tyres are under-inflated. The Tyre Pressure Monitoring System (TPMS) warning light will go off within a few minutes of driving.

22 Hyundai Ioniq Immobiliser Indicator Light

The Hyundai Ioniq warning light illuminates for up to 30 seconds:

  • When the vehicle detects the smart key in the vehicle with the Engine Start/Stop button in the ACC or ON position. At this time, you can start the engine. The indicator light goes off after starting the engine.

The warning light flashes for a few seconds:

  • When the smart key is not in the vehicle. At this time, you cannot start the engine. This could be due to the battery voltage of the smart key being low. However, you can start the engine if you press the Engine Start/Stop button with the smart key.

The warning light illuminates for 2 seconds and goes off:

  • If the smart key is in the vehicle and the Engine Start/Stop button is ON, but the vehicle cannot detect the smart key. In this case, have the vehicle inspected by an authorised Hyundai workshop.



23 Hyundai Ioniq ABS Warning Light

The Hyundai Ioniq anti-lock braking system (ABS) warning light illuminates in amber:

  • For around 3 seconds when you place the Engine Start/Stop button to the ON position.
  • When there is a malfunction with the ABS (The normal braking system will still be operational without
    the assistance of the anti-lock brake system). This is often due to wheel speed sensors being faulty. You can continue to drive the vehicle, but have system serviced as soon as possible.

ABS and Brake Warning Light

If the ABS warning light (23) and the brake warning light (25) illuminate simultaneously, it indicates a fault with the Electronic Brake Force
Distribution (EBD) system. EBD varies the amount of brake force per wheel. Braking may become unpredictable, particularly when braking hard. Have vehicle checked by a Hyundai workshop. Additionally, the speedometer, odometer, or tripmeter may not work. Also, the EPS (31) Warning Light may illuminate and the steering effort may increase or decrease.

24 Hyundai Ioniq Malfunction Indicator Lamp (MIL)

MIL, otherwise known as the Hyundai Ioniq check engine warning light comes on:

  • For around 3 seconds when you place the Engine Start/Stop button to the ON position.
  • When there is a malfunction with the emission control system. You may notice an increase in fuel consumption. Continued driving with the check engine light on may cause damage to the emission control system.
  • If the check engine light begins to flash, potential damage to the catalytic converter damage is possible. This is an expensive repair. Immediately reduce speed. Have your vehicle checked by a qualified Hyundai workshop.

25 Hyundai Ioniq Parking Brake & Brake Warning Light

The Hyundai Ioniq brake warning light illuminates in red for the following reasons:

  • It illuminates for approximately 3 seconds when you place the Engine Start/Stop button to the ON position.
  • When the parking brake is applied.
  • When the brake fluid level in the reservoir is low. If the parking brake is released, it indicates the brake fluid level is low.
  • When the regenerative brake does not operate correctly.

If the brake warning light remains on, stop as soon as possible and check brake fluid level and correct as necessary. Check for any leaks. If the warning light remains on, do not continue driving.


26 Hyundai Ioniq Seat Belt Warning Light

This warning light informs the driver that the seat belt is not fastened.

27 Engine Coolant Temperature Warning Light

The Hyundai Ioniq engine coolant temperature warning light illuminates in red when the engine coolant temperature is above 248°F (120°C). This
means that the engine is overheated and may be damaged.

  1. Pull off the road and secure the vehicle by applying the parking brake.
  2. If there’s any steam coming from the engine, wait for it to subside.
  3. Open the engine compartment, and check the water-pump connector is connected. If it isn’t, stop the engine and reconnect it.
  4. Check there are suitable levels of coolant in the tank. Add coolant if necessary.
  5. Check radiator, heater hose, and water pump connections for any leakage. If there are leaks, do not continue driving.
  6. In the cabin, on the air conditioner, set the temperature and fan speed to maximum.
  7. If the service warning light (17) comes on, switch off the engine and contact a Hyundai workshop.
  8. If the MIL / check engine warning light (24) comes on, leave the engine compartment open with the engine running to cool it down.
  9. Only continue driving if there is sufficient engine coolant, there are no leaks and the warning light go off.

28 Hyundai Ioniq Air Bag Warning Light

The air bag warning light illuminates:

  • Illuminates for approximately 6 seconds then goes off when you place the Engine Start/ Stop button to the ON position.
  • Will illuminate constantly when there is a malfunction with the Supplemental Restraint System (SRS). In this case, have the vehicle checked by a qualified Hyundai workshop.

29 Hyundai Ioniq Charging System Warning Light

The Hyundai Ioniq battery warning light illuminating when the engine is running indicates a battery charge malfunction. Due to the battery not charging, the engine may cut out when battery energy has exhausted. Immediately turn OFF all electrical accessories. Try not to use electrically operated controls, such as the power windows. Keep running the engine and make your way immediately to a repair workshop.

30 Engine Oil Pressure Warning Light

The Hyundai Ioniq oil pressure warning light comes on due to a engine lubrication fault:

  1. If the light comes on while driving, pull off the road as soon as possible and stop the engine.
  2. Check engine oil level and add oil if required.
  3. Check the low oil pressure warning light has gone out before continuing your journey.
  4. If the light remains on, do not continue your journey and contact A hyundai workshop immediate. Continued driving is likely to cause severe engine damage which is not covered under warranty.



31 Hyundai Ioniq EPS Warning Light

The Hyundai Ioniq EPS, or Electric Power Steering warning light comes on for the following reasons:

  • When you place the Engine Start/Stop button to the ON position, it illuminates for approximately 3 seconds and then goes off.
  • When there is a malfunction with the EPS. This may be a temporary fault due to the EPS motor overheating and shutting off for safety reasons. Continuous steering from left to right lock or leaving the steering on full lock for long periods of time while the engine is running can cause overheating.

32 Hyundai Ioniq Power Gauge

The Hyundai Ioniq power gauge indicates how efficient the current driving conditions are:

  • Power: Vehicle is exceeding the eco-friendly range.
  • Eco: Vehicle is being driven in an eco-friendly manner.
  • Charge: The energy made by the vehicle is being converted to electrical energy (regeneration).



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