Can I use CarMD to turn off my “CHECK ENGINE” light?
No. It is not recommended for drivers to turn off their vehicle’s “CHECK ENGINE” light until the pending or current problem has been identified and repairs confirmed. If you are a confident do-it-yourselfer or have confirmed that the “CHECK ENGINE” light is illuminated because of a loose gas cap and wish to turn it off, we recommend purchasing a product called an OBD2 code reader or scan tool from your local auto supply store.