As dusk settles over a quiet motorway, a driver notices an unfamiliar amber light glowing on their dashboard, sparking a moment of unease. Modern vehicles communicate vital information through an array of dashboard symbols, from warnings of critical faults to reminders of routine maintenance. Understanding these symbols is essential for safe and efficient driving, yet many motorists remain uncertain about their meanings.
This article outlines ten key dashboard symbols and their implications, equipping drivers with the knowledge to respond confidently and maintain their vehicles effectively.
Dashboard symbols serve as a vehicle’s primary means of alerting drivers to its condition, ranging from minor issues, such as low fuel, to severe faults, such as brake system failures. Ignoring or misinterpreting these indicators can lead to costly repairs, compromised safety, or breakdowns, as noted by automotive experts like the RAC and AA.
In 2025, with vehicles incorporating advanced technologies like hybrid systems and tyre pressure monitors, the complexity of dashboards has increased, making familiarity with symbols more crucial than ever. By understanding these indicators, drivers can enhance vehicle longevity, reduce maintenance costs, and ensure safer journeys, fostering confidence behind the wheel.
Car Dashboard Symbols and Their Meanings
Here are 10 key dashboard symbols and their meanings
1. Check Engine Light
This amber or red symbol, often resembling an engine outline or labelled “CHECK”, indicates a potential issue with the vehicle’s engine or emissions system. It may signal minor faults, such as a loose fuel cap, or serious problems, like a misfiring engine.
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Drivers should first tighten the fuel cap and monitor the light; if it persists, a mechanic should be consulted promptly using an OBD-II diagnostic tool. While not always urgent, prolonged driving with this light illuminated risks engine damage or increased emissions.
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2. Oil Pressure Warning
Depicted as a red oil can with a dripping spout, this symbol warns of low oil pressure, which can lead to severe engine damage if ignored. It typically appears in petrol and diesel vehicles when oil levels or pump function are compromised.
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Drivers must stop the vehicle safely as soon as possible, check oil levels using the dipstick, and top up if needed. If the light remains on, professional assistance is required urgently, as driving further could result in catastrophic engine failure.
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3. Battery Warning
This red symbol, shaped like a battery with plus and minus signs, signals an issue with the vehicle’s charging system, such as a faulty alternator or battery. Common across all vehicle types, it may cause electrical failures if unaddressed.
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Drivers should turn off non-essential electronics (e.g., air conditioning) and seek a mechanic promptly to test the battery and alternator. Continuing to drive risks a complete loss of power, particularly at night.
4. Brake System Warning
Represented by a red circle with an exclamation mark or “BRAKE”, this symbol indicates a serious issue with the braking system, such as low brake fluid or worn pads. It appears in all vehicles and demands immediate attention due to its safety implications.
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Drivers should check brake fluid levels and avoid driving until a mechanic inspects the system. Ignoring this warning could lead to brake failure, posing a significant risk to road safety.
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5. Tyre Pressure Monitoring System (TPMS)
This amber symbol, resembling a tyre cross-section with an exclamation mark, alerts drivers to low tyre pressure in one or more tyres. Found in most modern vehicles, it ensures optimal handling and fuel efficiency.
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Drivers should check tyre pressures with a gauge, inflate to the manufacturer’s recommended levels, and inspect for punctures. If the light persists, a professional should assess the tyres, as prolonged low pressure can cause wear or blowouts.
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6. Anti-Lock Brake System (ABS) Warning
This amber symbol, labelled “ABS” within a circle, indicates a fault in the anti-lock brake system, which prevents wheel lock-up during sudden braking. Common in modern vehicles, it may reduce braking efficiency if faulty.
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Drivers can continue driving cautiously but should consult a mechanic soon to diagnose the issue, often related to sensors or wiring. While not an immediate emergency, a malfunctioning ABS compromises safety in adverse conditions.
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7. Coolant Temperature Warning
Depicted as a red thermometer in water or a gauge with “TEMP”, this symbol warns of an overheating engine, typically due to low coolant or a faulty radiator. It appears in petrol, diesel, and hybrid vehicles and requires urgent action.
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Drivers should stop safely, allow the engine to cool, and ningcheck coolant levels; if low, top up with the correct fluid. Persistent overheating necessitates immediate professional repair to prevent engine damage.
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8. Airbag Warning
This red symbol, often showing a seated figure with a balloon or “SRS” (Supplemental Restraint System), indicates a fault in the airbag system. Found in most vehicles, it suggests that airbags may not deploy in a collision.
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Drivers should schedule a mechanic’s inspection promptly, as the issue may involve sensors or wiring. Driving with this light on compromises occupant safety, though it does not affect vehicle operation.
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9. Traction Control Light
This amber symbol, typically showing a car with skid marks or “TC”, indicates that the traction control system is active or faulty. Common in modern vehicles, it enhances grip in slippery conditions.
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If the light flashes during driving, it’s normal, showing system engagement; if it stays on, a mechanic should check for faults. A disabled traction control system reduces stability, particularly in wet or icy conditions.
10. Low Fuel Indicator
Represented by an amber fuel pump icon, often with a warning chime, this symbol alerts drivers to critically low fuel levels. Universal across petrol, diesel, and hybrid vehicles, it typically activates when 10–15% of the tank remains. Drivers should refuel at the nearest station to avoid running out, which can damage fuel pumps in some models. While not a fault, prompt action ensures uninterrupted travel.
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Tips for Responding to Dashboard Symbols
To address dashboard symbols effectively, drivers should consult their vehicle’s manual for specific meanings and manufacturer guidance, as symbols may vary slightly by brand. Prioritise red warning lights, such as oil pressure or brake system alerts, by stopping safely and seeking immediate assistance. Consider investing in an OBD-II scanner to diagnose check engine light codes, offering clarity before visiting a garage. Maintain regular vehicle checks, including oil, coolant, and tyre pressure, to prevent warnings and extend vehicle life. For persistent or unclear symbols, contact a trusted mechanic or roadside assistance provider, such as the AA or RAC, to ensure timely resolution.
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The ten dashboard symbols outlined—from the check engine light’s diagnostic prompt to the brake system warning’s urgent alert—equip drivers with essential knowledge to maintain vehicle safety and performance. By understanding these indicators, motorists can respond promptly, preventing minor issues from escalating into costly or dangerous faults. Familiarity with these symbols empowers drivers to navigate the roads with confidence, ensuring their vehicles remain reliable companions. Every driver is encouraged to study their dashboard, consult their manual, and prioritise maintenance, transforming uncertainty into informed action.