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Car warning lights can be a source of anxiety for many drivers, especially when you don’t know what they mean. These lights are your car’s way of communicating potential issues, from minor maintenance needs to critical safety concerns. Here’s a guide to what these common car warning lights are trying to tell you and what steps you should take.

Why Warning Lights Matter

Ignoring a warning light can lead to more serious problems, increased repair costs, and even safety risks. Understanding what each light means helps you address issues quickly, keeping your car in good condition and you safe on the road.

Common Car Warning Lights

Here are some of the most frequently seen warning lights and what they indicate:

1. Engine Management Light (EML)
   • What It Means: Indicates a potential issue with the engine or emissions system.
   • What to Do: A steady light suggests a minor issue, while a flashing light signals a serious problem. Use a diagnostic tool or visit a mechanic.
2. Oil Pressure Warning Light
   • What It Means: Low oil pressure, which can cause severe engine damage.
   • What to Do: Stop the car immediately and check the oil level. Top up if necessary, but if the light remains on, seek professional assistance.
3. Brake System Warning Light
   • What It Means: Could indicate low brake fluid, worn brake pads, or an issue with the braking system.
   • What to Do: Check the brake fluid level. If the light persists, have your brakes inspected by a mechanic.
4. Tyre Pressure Monitoring System (TPMS) Light
   • What It Means: One or more tyres are under-inflated.
   • What to Do: Check your tyre pressures and inflate them to the recommended levels.
5. Battery Warning Light
   • What It Means: Indicates a problem with the charging system, such as a faulty alternator or battery.
   • What to Do: Have your car’s electrical system checked to avoid a breakdown.
6. Coolant Temperature Warning Light
   • What It Means: The engine is overheating, which could lead to significant damage.
   • What to Do: Stop the car, let the engine cool, and check the coolant level. If low, top it up with the correct type of coolant.
7. ABS Warning Light
   • What It Means: There’s an issue with the Anti-Lock Braking System (ABS).
   • What to Do: While your brakes will still function, ABS issues can affect stopping efficiency. Have the system inspected as soon as possible.
8. Airbag Warning Light
   • What It Means: A fault in the airbag system, which may prevent airbags from deploying in an accident.
   • What to Do: Seek professional assistance to diagnose and fix the issue.

What to Do When a Warning Light Appears

1. Don’t Panic
   Not all warning lights indicate immediate danger. Check your vehicle’s manual for guidance on the specific light.
2. Address the Issue Promptly
   Even minor issues can escalate if ignored. Resolve the problem as soon as possible to avoid further complications.
3. Use Rooster’s Tools
   Rooster’s app helps you stay informed about your car’s condition:
   • Repair Predictor: Anticipate potential issues based on your car’s history.
   • Maintenance Reminders: Never miss a routine check or service.
   • MOT Integration: Ensure all warning lights are resolved before your MOT.

Final Thoughts

Car warning lights are not just annoyances—they’re essential alerts that help maintain your safety and your vehicle’s performance. By understanding what these common car warning lights are trying to tell you, you can address issues quickly and keep your car running smoothly. With Rooster, staying on top of your car’s health has never been easier.