Hyundai i20 Dashboard Warning Lights Guide (2008–2024): Full Symbols, Meanings & Troubleshooting

Understanding Hyundai i20 Dashboard Symbols

We provide the most complete, technically accurate, and fully structured reference for every dashboard light on all Hyundai i20 generations from 2008 to 2024, including petrol, diesel, hybrid variants, and all trim levels. Each symbol is decoded with precise meanings, real-world symptoms, and recommended actions to help you diagnose issues confidently and protect your vehicle.

Engine & Powertrain Warning Lights

Engine Management Light (EML / Check Engine)

The engine warning indicator signals that your Hyundai i20’s control unit has detected an abnormality in combustion, emissions, ignition, air-fuel balance, or a connected sensor. Typical triggers include faulty O₂ sensors, blocked injectors, a loose fuel cap, misfires, catalytic converter inefficiency, transmission irregularities, and overheating-related derating. Continuing to drive may worsen damage.

Low Engine Oil Pressure Light

This symbol warns that oil pressure is insufficient to lubricate internal components. Causes include severe leaks, empty oil sump, worn pump, clogged pickup screen, or oil starvation under extreme heat. Stop the engine immediately to avoid critical bearing damage.

General Attention / Fault Indicator

A multifunction alert that activates when the system needs to draw your attention to another illuminated warning light. It may also activate if the parking brake is engaged.

Electrical System Indicators

Battery Charge Warning Light

Indicates reduced voltage supply from the alternator or battery. Causes may include failing alternator brushes, a broken belt, corroded terminals, or end-of-life battery cells. Driving with insufficient voltage risks sudden engine shutdown and loss of power steering.

Press Foot Brake Indicator

Appears before ignition in automatic models to signal that the brake pedal must be depressed before shifting out of Park.

Handbrake / Parking Brake Light

Shows that the handbrake remains engaged. In vehicles with electronic parking brakes, it may also signal a malfunction in the actuator or switch.

Airbag & Safety System Lights

Airbag / SRS Fault Light

Illumination suggests a malfunction in the supplemental restraint system. Typical causes include a faulty seat occupancy sensor, damaged wiring beneath the seats, failed crash sensors, or a defective control module. Airbags may not deploy until the system is repaired.

ABS System Warning / ABS Off

Signals that the anti-lock braking system has been disabled due to a fault. Wheel speed sensors, hydraulic modulators, or wiring issues are the usual culprits. Braking distances may increase, especially on wet roads.

ESC / ESP Active Indicator

Flashes when stability control is actively correcting tire slip. If permanently lit, it indicates a system malfunction linked to steering angle sensors, yaw sensors, or wheel speed data.

Cooling, Temperature, and Fluids

High Engine Coolant Temperature Warning

Indicates rising coolant temperature caused by low coolant, blocked radiator flow, seized water pump, thermostat failure, or coolant leaks. Continuing to drive may result in overheating and engine warpage.

Brake Fluid Level Warning

Signals that fluid has dropped below the safe threshold due to leaks, worn brake pads, or moisture contamination. Low fluid compromises braking pressure.

Brake Pad Wear Indicator

Shows that pads are approaching their minimum thickness. Grinding noises or increased stopping distance are common accompanying symptoms.

Exterior Lights & Visibility Indicators

Bulb Failure Indicator

Triggers when the vehicle detects a faulty exterior light, including headlights, indicators, DRLs, or brake lights. Check for blown bulbs or fuse issues.

Low Beam Headlights Indicator

Confirms that standard driving lights are active.

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High Beam Headlights Indicator

Signals that high beams are engaged. Switch off when approaching oncoming traffic.

Automatic Low Beam Indicator

Indicates that the auto-lighting system has activated low beams due to low ambient light levels.

Automatic High Beam Indicator

Shows that automatic high beam assist is active; however, it may not deactivate quickly enough around other vehicles, requiring manual override.

Automatic Lights System Fault

A malfunction in the ambient light sensor or headlight control module. Manual lighting operation remains possible.

Front Fog Light Indicator

Confirms engagement of front fog lamps. Usage restrictions may apply in some regions.

Heated Windscreen Indicator

Signals the activation of the windscreen heating grid to melt frost or condensation.

Intermediate / Automatic Wipers Indicator

Shows that rain-sensing wipers are active.

Diesel-Specific Indicators

Glow Plug Indicator (Diesel Only)

When illuminated green, the glow plugs are heating normally. A yellow or persistent light signals a failure of one or more plugs or a relay/module fault.

Doors, Boot, and Vehicle Access Symbols

Vehicle in Park Indicator

Displays that the gear selector lever is in Park.

Bonnet / Hood Open Warning

Even a slightly unlatched bonnet can trigger the sensor.

Boot / Trunk Open Indicator

Signals incomplete latching of the rear boot.

Steering Wheel Lock Indicator

Flashes when the steering lock mechanism is engaged. If it remains on, ignition or lock faults may be present.

Driver Assistance & Sensor-Based Systems

Parking Sensors Indicator

Illuminates when proximity sensors are active. Audible beeps intensify as the vehicle approaches obstacles.

Front Radar Active Indicator

Shows that radar-based features—such as forward collision avoidance or adaptive cruise—are operational.

Lane Keeping Assist Indicator

Activates when the lane assistance system is working to maintain lane position. Some models require speeds above 40 km/h.

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Cruise Control Ready Indicator

Displays when cruise control is armed but not actively maintaining speed.

ECO Mode Indicator

Shows that the engine and throttle response are optimised for maximum fuel efficiency.

Wheels, Tyres & Suspension Symbols

Check Wheel Indicator

Relates to wheel alignment, balance, or steering geometry issues. Vibrations or pulling may accompany this warning.

Tyre Pressure Monitoring System (TPMS) Warning

Indicates low tyre pressure or a faulty TPMS sensor. Driving with low pressure may cause uneven wear or tyre blowout under high speed.

Air Suspension Fault Indicator (Applicable Models)

Alerts to issues with air springs, compressors, or height sensors.

Seat Comfort & Interior Systems

Heated Seats Indicator

Displays the active heating level of the seat elements.

Service Reminder Indicator

Appears when your Hyundai i20 is due for scheduled maintenance based on mileage or time.

Dashboard Warning Light Color Codes

Green or Blue Lights

Indicate active systems or features. No corrective action required.

Yellow/Amber Lights

Signal caution. The system may be malfunctioning or requiring attention. Book an inspection soon.

Orange or Red Lights

Indicate urgent faults requiring immediate engine shutoff or mechanical intervention.

Final Notes

Understanding Hyundai i20 dashboard symbols ensures faster diagnosis, better safety, and reduced repair costs. When any light persists, consult a qualified technician to verify the underlying cause and prevent long-term mechanical damage.

FAQs

1. Can I drive my Hyundai i20 with the engine light on?

Short trips may be possible, but prolonged driving risks severe engine or transmission damage.

2. Why does my Hyundai i20 battery light flicker?

Flickering often indicates alternator voltage fluctuations or loose wiring.

3. Does a yellow glow plug symbol mean immediate danger?

Not immediate danger, but degraded cold starts and rough running suggest failing plugs.

4. Why is the ESC light constantly on?

The ESC system is disabled due to a faulty sensor, steering angle mismatch, or wheel speed irregularities.

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5. What causes the tyre pressure light to remain on even after inflating tyres?

A faulty TPMS sensor or incorrect reset procedure is typically responsible.

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