Posted on 10/31/2025

Seeing your check engine light come on is stressful enough, but when it starts flashing, the urgency kicks up a notch. Many drivers wonder how serious it really is. Can you finish your commute or run a quick errand before heading to the shop? The short answer is: a flashing check engine light is a clear warning that your vehicle needs immediate attention. Driving too long in this condition can lead to costly repairs—or even leave you stranded. Let’s break down what that flashing light really means, what might be causing it, and why acting fast can protect both your engine and your wallet. What a Flashing Check Engine Light Means While a steady check engine light usually signals a minor issue, a flashing light is different. It means your car’s onboard diagnostic system has detected a serious problem, usually a misfire that could damage the catalytic converter if ignored. The catalytic converter helps reduce harmful emissions by converting gases in ... read more