Posted on 4/28/2025
Today’s vehicles rely on advanced computer systems to keep track of everything from performance to safety and emissions. When something isn’t quite right, the system logs diagnostic trouble codes (DTCs) that help point to the issue. But how can you tell when it’s time to hook your car up for a scan? Here are eight signs your vehicle might be trying to tell you it needs some attention—before a small problem turns into a bigger repair bill. 1. The Check Engine Light Is On This is the most obvious—and most misunderstood—sign. Your check engine light can be triggered by a wide range of issues, from a loose gas cap to a serious engine problem. If the light stays on or flashes, it means your vehicle has detected a fault and stored a code. Even if your car seems to be running normally, it’s a good idea to have it scanned. Ignoring the light could lead to reduced fuel efficiency, engine damage, or emissions problems. 2. St ... read more