Posted on 8/25/2026

Seeing the check engine light appear on your dashboard can be unsettling. Your vehicle may seem to be running perfectly fine, or you may notice rough running, strange noises, reduced power, or other changes. So, what does the check engine light actually mean? And more importantly, can you keep driving, or should you schedule service right away? The check engine light is your vehicle's way of telling you that its onboard diagnostic system has detected a problem. Sometimes the issue is relatively minor. Other times, the warning can indicate a problem that needs immediate attention. At Bret's Autoworks in Gardner, Kansas, we believe understanding what your vehicle is telling you can help you make better decisions about maintenance and repairs. Here's what you need to know. Why Does the Check Engine Light Come On? Modern vehicles have computers that continually monitor the engine, emissions system, fuel system, ignition sy ... read more