Common Car Warning Lights and What They Mean

Check engine light

Like most people, you’ve probably seen a warning light come on in your car, and wonder “What does this mean?” — today we’re going to help answer that for three common warning lights.

“Check engine” light

The check engine light is connected to your car’s computer, and is one of the most common warning lights seen. It can be caused by a variety of issues, from simple to potentially dangerous.

  • A loose gas cap. A common reason for the check engine light is certainly a simple one. Try tightening it and see if the light goes away.
  • Sensors
  • Spark plugs
  • Other engine issues

“Dirty Air Filter” light

This light means that your engine air filter may be obstructed or dirty. A common fix is resetting the button as well as getting the filter replaced. To learn more about the air filters in your car, check out our articles on them here: The filters in your vehicle, and How to replace your air filter and cabin air filter.

“Break wear” light

A break wear light, more common in newer cars, means that the sensor has indicated your brake pads are thin. If you are unsure if this light is correct, try resetting the indicator. We recommend booking a mechanic when you see this light, as it’s important to have the break pads replaced.

Related articles

How To Check Your Coolant Level
The 3 Signs Of Misaligned Wheels
Is Window Tinting Legal In Ontario
4 Common Smells That Signal Trouble For Your Car
OBD II Trouble Code P0517: Battery Temperature Sensor Circuit High
3 Signs Of A Failing Oxygen Sensor

Extend your car's life. Get car advice straight to your inbox.

Join 5000+ car owners and keep your car in its healthiest form.

More Related Articles

4 Tips To Make Your Tires Last Longer

4 Tips To Make Your Tires Last Longer

Regular maintenance is the most important thing to keep your tires lasting long, and it can save you a lot of money in the long-run! If your tires are maintained properly, most experts say they can last up to 10 years. We’ve compiled the top tips for making your tires last longer so you can get the most value for your money.

Read more

Should You Buy An Aftermarket Catalytic Converter

Should You Buy An Aftermarket Catalytic Converter

Replacing your catalytic converter can be expensive, especially if you are buying a brand new one. Manufacturer-sourced catalytic converter repairs can potentially run you over $1000, so it's not surprising that owners often turn to alternative sources when confronted with this repair.

Read more

What's The Difference In Gas Level Types

What's The Difference In Gas Level Types

You’ve probably seen different octane levels in your choices for gasoline - your gas station probably brands them as “regular,” “plus,” and “premium.” The difference in these is the “octane rating”, which describes the fuel’s ability to be compressed without detonating.

Read more