Posted on 6/27/2025
When you think of the check engine light, your first thought might be a gasoline-powered car with engine trouble. But what about electric vehicles? These cars don't have traditional engines, yet they still have check engine lights. So, what does it mean when this warning appears in an EV? Understanding the purpose of this light in electric vehicles is crucial for preventing minor issues from escalating into major problems. While the systems in an EV differ from those in gas-powered cars, modern EVs are still complex machines packed with sensors, software, and electric drivetrains that need regular oversight. Why Do EVs Have a Check Engine Light Even though EVs don’t use internal combustion engines, they have electronic control units (ECUs), battery management systems, and drive motors that can trigger fault codes. The check engine light is a general warning indicator designed to alert you that one or more of these systems aren't operating a ... read more