Hyundai IONIQ 5 Warning Lights: What They Mean

Amber: check soon

Regenerative Brake Warning Light

The regenerative brake is not working and braking performance is reduced because of a brake system malfunction. The red Brake Warning light comes on at the same time.
What to do: Drive safely and have the vehicle inspected by an authorized HYUNDAI dealer. Pedal may feel deeper and stopping distance may increase. PDF page 80

Other warnings and indicators

Anti-lock Brake System (ABS) Warning Light

Comes on for about 3 seconds at start-up, or stays on when the ABS malfunctions. Hydraulic braking still works.
What to do: If it stays on while driving, have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 192

Electronic Brake Force Distribution (EBD) System Warning Light

ABS and Parking Brake warning lights on together may indicate an EBD problem. With Brake Fluid light also on, braking is not normal.
What to do: Avoid high speed and abrupt braking. Have the vehicle inspected by an authorized HYUNDAI dealer as soon as possible. PDF page 192

AirBag Warning Light

Comes on for 3-6 seconds at start-up, or stays on when the Safety Restraint System (SRS) malfunctions.
What to do: If it stays on while driving, have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 190

Service warning light

A problem with electric vehicle control system parts such as sensors, or an actuator or electric AC compressor malfunction. Normally on about 3 seconds at start.
What to do: If on while driving or it stays on after starting, have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 79

High Voltage Battery Level Warning Light

The high voltage battery level is low.
What to do: Charge the vehicle immediately. About 18-31 mi. (30-50 km) of additional driving remains, depending on conditions. PDF page 80

Power down indicator light

High voltage battery level is too low or battery or driving system temperature is out of range, so output is limited. Alone, it is not a failure.
What to do: Charge the vehicle immediately. If it comes on with the Service warning light, have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 79

Electronic Parking Brake (EPB) Warning Light

Comes on for about 3 seconds at start-up, or stays on when the EPB malfunctions.
What to do: If it stays on while driving, have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 194

Low Tire Pressure Warning Light

One or more tires are significantly underinflated. Staying on after blinking about 60 seconds, or repeated blinking, indicates a TPMS malfunction.
What to do: For a TPMS malfunction, have the vehicle inspected by an authorized HYUNDAI dealer as soon as possible. PDF page 194

ESC indicator light

Blinks when ESC is operating. If it stays on, the ESC system may be malfunctioning. ESC OFF light shows ESC is turned off.
What to do: When blinking, drive slowly and never accelerate. If it stays on, have it checked by an authorized HYUNDAI dealer soon. PDF page 439

Immobilizer Indicator Light

Shows the smart key is detected so you can start. Blinking means the key is absent or the immobilizer malfunctions.
What to do: If the key is not detected or it blinks for a malfunction, have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 200

Turn Signal Indicator Light

Blinks when the turn signal is used. Staying on, blinking rapidly or not lighting may indicate a turn signal malfunction.
What to do: Have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 200

Forward Attention Warning light

Comes on when Forward Attention Warning is disabled or malfunctioning. Blinking warns the driver to keep eyes on the road.
What to do: If it stays on after the in-cabin camera is uncovered, have the vehicle inspected by an authorized HYUNDAI dealer. PDF page 203

Ready indicator light

On when the vehicle is ready to drive. If it goes off or blinks, the vehicle has a malfunction.
What to do: Have the vehicle inspected and repaired by an authorized HYUNDAI dealer. PDF page 80

Seat Belt Warning Light

The seat belt is not fastened. PDF page 190

Green: system on

Charging connector indicator light

Shows the charging connector is connected to the high voltage battery. PDF page 80

Summarized in our own words from the 2026 Hyundai IONIQ 5 owner's manual (AI-assisted; every light name was matched against its cited page 2026-10-18). Your vehicle may not have every light, and other years can differ. A red warning that stays on usually means stop safely and check: your manual has the final word.