Modern cars feature clever technology designed to keep you safe and aware of issues. It may be tempting to ignore warning lights, especially if your car is driving OK, but some warning lights signal serious problems that could lead to breakdowns, expensive repairs, or safety risks if left unchecked. Here’s what you need to know.
Engine management (EML) / check engine
One of the most common and most misunderstood warning lights, the EML can indicate anything from a small sensor fault to a serious engine or emissions issue. A flashing EML requires immediate attention, but a steady amber light shouldn’t be ignored as it means your engine isn’t running as it should and may be burning more fuel or causing long-term damage.
Oil pressure warning light
Usually represented by an oil can symbol, this is one of the most critical lights. Low oil pressure means your engine’s moving parts aren’t being properly lubricated, which can lead to engine failure in minutes. If this light appears, pull over safely and switch the engine off right away. Continuing to drive could lead to a complete engine replacement.
Battery/charging system
This light (often a battery symbol) indicates that your car’s charging system isn’t working correctly. While the car may run on battery power alone, it will eventually cut out. The cause could be a failing alternator, damaged cables, or a weak battery; getting it checked early can prevent an unexpected breakdown.
Brake system
A red brake light can signal low brake fluid, a serious brake system fault, or that the handbrake is still engaged. If the handbrake is off and the light remains on, do not continue driving. Faulty brakes put you and others at risk, and the issue should be addressed by a professional immediately.
Coolant temperature
Represented by a thermometer symbol, this light means your engine is overheating. Causes can include low coolant levels, a faulty water pump, a blocked radiator, or a broken thermostat. Continuing to drive with an overheating engine can cause head gasket failure; one of the most expensive repairs a car owner can face. Pull over, allow the engine to cool, and seek assistance.
Airbag
If your airbag or SRS (Supplemental Restraint System) warning light stays on, it means there’s a problem with one or more airbags, or the seatbelt tensioners. This may prevent the airbags from deploying in an accident or could cause them to activate unexpectedly. Both scenarios are dangerous, so don’t ignore it.
ABS
The Anti-Lock Braking System helps prevent skidding when braking sharply. If this light appears, your car may still brake, but the safety system won’t activate when needed. This could put you at risk, especially in wet or icy conditions.
Ignoring dashboard warning lights rarely ends well. When you see one appear, take it seriously and get your vehicle checked by a trusted garage. A quick check today can save you money, and keep you safe, tomorrow. Want to know more? Follow us on Facebook or X.