Check engine light

Check engine light, steady (amber engine outline) The most familiar warning light, and usually not an emergency. A steady light means the engine computer has logged a fault somewhere in the engine, fuel, ignition or emissions systems. You can keep driving, but book a check soon rather than learning to live with it. Start with the fuel cap. A loose or missing cap is a common trigger, and the light can take several normal drives to go out after you tighten it. If the light stays on after that, have the stored fault read. If the car starts running rough or losing power, or the light begins to flash, the urgency changes completely: see the flashing entry.