Understanding Your Car's Dashboard Warning Lights


Understanding Your Car's Dashboard Warning Lights


Modern cars are equipped with sophisticated systems that constantly monitor various aspects of the vehicle to ensure optimal performance and safety. When an issue is detected, these systems communicate with the driver through dashboard warning lights. 


Understanding what these warning lights mean can prevent potential problems, avoid costly repairs, and ensure a safe driving experience. Below, Pearson Automotive have broken down some of the meanings behind these warning lights. 


1. Check Engine Light

The infamous check engine light is perhaps the most dreaded warning light. It indicates a problem with the engine, emissions, or other crucial components. While the light may turn on for minor issues like a loose gas cap, it can also indicate more serious problems such as a faulty oxygen sensor, catalytic converter issues, or engine misfire. If the check engine light illuminates, it's essential to have the car diagnosed by a qualified mechanic - such as Pearson Automotive, to identify the underlying cause.


2. Battery Light

The battery light indicates a problem with the charging system. It could be due to a failing alternator, loose or corroded battery cables, or a weak battery. If this light comes on while driving, it's best to pull over safely and have the vehicle checked, as a dying battery can leave you stranded.


3. Oil Pressure Light

This warning light typically looks like an oil can or an oil drop. It indicates low oil pressure, which can be caused by low oil levels, a faulty oil pump, or an oil leak. Ignoring this light could lead to severe engine damage, so it's essential to stop the car immediately, check the oil level, and have the issue addressed.


4. Brake System Light

The brake system warning light could indicate various issues with the braking system, such as low brake fluid, a brake system malfunction, or worn brake pads. If this light comes on, it's crucial to have the brake system inspected as soon as possible to ensure safe braking.


5. Anti-Lock Braking System Light

The Anti-Lock Braking System (ABS) light indicates a problem with the ABS, which helps prevent skidding during heavy braking. While the brakes will still work, the ABS may not function correctly in an emergency situation. A malfunctioning ABS could be caused by sensor issues or a failing pump, so having it checked is essential.


6. Airbag Light

The airbag light indicates a problem with the airbag system. In the event of an accident, a malfunctioning airbag system may fail to deploy airbags, putting the occupants at greater risk. Diagnosing and repairing the airbag system should be done promptly by a certified technician.


7. Tyre Pressure Monitoring System (TPMS) Light

The TPMS light alerts you when one or more of your tyres have low pressure. Under-inflated tyres can affect fuel efficiency and handling and can lead to premature tyre wear. Checking and adjusting tyre pressure regularly can prevent potential issues.


8. Coolant Temperature Warning Light

This light indicates that the engine is running hot, which could be caused by a cooling system problem, low coolant level, or a faulty thermostat. If the temperature gauge also shows a high reading, it's best to stop the car immediately and allow it to cool down before seeking assistance.


9. Transmission Warning Light

The transmission warning light, often shaped like a gear, indicates an issue with the transmission system. It could be due to low transmission fluid, a transmission sensor problem, or more severe transmission issues. Having it checked promptly can prevent further damage.



Paying attention to your car's dashboard warning lights is vital for maintaining your vehicle's health and ensuring your safety on the road. If any of these warning lights illuminate, it's essential to take them seriously and act promptly. 


While some issues may be minor and easily resolved, others could be significant and require immediate attention from a qualified mechanic, such as those at Pearson Automotive. 


Pearson Automotive offers a complete range of car servicing options, designed to suit all vehicle types. Keeping your car safely on the road with the minimum downtime is our main objective.


Whether it's a car, light utility vehicle or four wheel drive, all can be serviced by our team of professionally trained technicians at Pearson Automotive.


To help keep your car in its best possible condition, chat to our Milton mechanics today.

Posted in Latest Posts on Aug 15, 2023