Constant dashboard lights are something of a joke in movies and TV shows, but they aren’t something you can afford to ignore IRL. When a dashboard light is on, it usually means there is a critical problem, from an overheating engine to engine failures that make driving unsafe.
An Electrical System Failure
Modern cars are almost entirely reliant on the electrical system to function properly, and a problem with this can be a nightmare. The battery icon lighting indicates there is an issue with the electrical system, and you need to see an auto electrician as soon as possible, as it means the car battery isn’t charging properly, so you may need a new alternator or drive belt. The car can lose power suddenly, so turn off any electrical systems and get to a mechanic immediately.
The Engine is Overheating
Engines produce a lot of heat, and they need to be cooled to function properly. There are many systems in a vehicle, such as lubrication, water and air intake that help cool the engine, but they can fail. A red oil or temperature light can indicate the engine is too hot and needs attention. Further driving can make things worse and cause a complete breakdown. So, pull over if you can, turn off the engine and check the coolant and oil levels when the car is in a safe place.
Constant Dashboard Lights for Bad Brakes
A red brake system light is a common icon to see when there is a problem with the handbrake or braking system, which needs adjustments every 2 to 3 years. There are, of course, some car care habits that can save you tons of money, including smooth braking. However, a dashboard brake light could indicate handbrake engagement, low brake fluid or a critical braking fault. This makes the car very unsafe to drive, so stop and check the fluids, or get the car to a mechanic.
Critical Engine Failures
There are many things that can go wrong with the engine in a car, and any one of them needs immediate attention. If you have an amber check engine light, there is a critical issue that can be unsafe. Usually it means there is a problem with the emissions or sensors, such as a loose cap or fault oxygen sensor. However, if it is flashing, it could mean a critical problem, such as misfires that can destroy the catalytic converter, so take the car for a diagnosis immediately.
The Tyres Have Become Unsafe
Tyres are often overlooked when it comes to looking after a car, but tyre care and maintenance are vital for road safety and ride comfort. A lit-up TPMS light indicates a problem with tyre inflation and pressure. An under- or over-inflated tyre can cause serious issues on the road, including loosened grip, and you can also experience a blowout when braking. As soon as you can, pull into a roadside garage and use the facilities to check the pressure and inflate the tyres.
Summary
Electrical system failure is one of the most common constant dashboard lights that you can’t ignore. You might also get a brake light indicator when the handbrake or braking system needs attention, and a TPMS light indicates a problem with the tyres that needs immediate attention.