CarMD releases its annual Vehicle Health Index of check engine light-related car repairs, costs and auto care trends. This infographic outlines findings from the 2018 CarMD Vehicle Health Index including the reasons drivers should pay attention to the check engine light, anatomy of a diagnostic trouble code, top causes for the dashboard warning light and the average cost for check engine-related car repairs in 2017. For more information about check engine health, visit www.carmd.com.
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