It happens at the worst time - stuck in traffic or a long road trip - when you see that check engine light flick on. Here's why it may keep returning.

When the check engine light comes on in a vehicle, it’s indicating that there is some issue with the car that should be checked out. It could be something minor, such as the gas cap not being screwed ...

Diagnosing a check engine issue a simple process, with problem codes obtained by a scanner plugged into the car’s OBD II (onboard diagnostics) jack.

If your check engine light flashes and then stops, it could signal a serious issue. Learn what it means and what steps to take next.

A 2020 GMC Sierra 1500 owner reports a complete engine failure at 77k miles, despite regular dealer service. The owner is questioning whether other 2020 5.3L engine owners have experienced similar ...

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of the car as well.

"The check engine light is designed to come on when a vehicle's on-board diagnostic system sees a problem that impacts emissions or drivetrain issues," said David Rich, CarMD technical vice president.

CarMD’s latest study looks at the most common check-engine light repairs and their average costs over the previous calendar year, then ranks the results.

A 2024 Chevrolet Corvette with under 8,000 miles on the clock needs to go back to the dealership ASAP! The Check Engine light showed up on the dashboard. The owners have already diagnosed the car ...