What effect do engine warning lights have on a vehicle inspection?

Engine warning lights serve as critical indicators of a vehicle's health and functionality. When illuminated, these warning lights signify that the vehicle's onboard diagnostic system has detected a malfunction or issue that could affect engine performance, emissions, safety, or overall vehicle operation.

During a vehicle inspection, the presence of engine warning lights is significant because they suggest that the vehicle has unresolved technical problems. An inspector is likely to interpret these lights as evidence that the vehicle is not operating at optimal levels and may not comply with state regulations or safety standards. In many jurisdictions, including Maryland, a vehicle exhibiting illuminated warning lights may automatically be deemed non-compliant, resulting in a failed inspection until the issues are adequately resolved and the warning lights are turned off.

This emphasis on the condition indicated by warning lights underscores their importance during the inspection process, as they reflect the need for immediate attention and maintenance to ensure the safety and reliability of the vehicle.