When is it okay to drive with the check engine light on but no symptoms?

[RyanFR]

My check engine light came on, but the car seems to be running perfectly fine—no strange noises, no loss of power, nothing. I've read it could be anything from a loose gas cap to a failing sensor. Is it ever actually safe to drive for a short period with the light on but no symptoms, or is that always a terrible idea?

[Brian_A]

Short answer drive short distances if the light stays steady and you feel nothing odd but do not push it and get a diagnostic soon after

[Layla.G]

If the light is flashing pull over safely and call roadside help right away This is a sign of a misfire that can damage the catalytic converter

[Logan91]

First check the gas cap Its a common fix and easy to do If the cap is tight and light stays on you need an OBD scan to read the codes

[AlexanderB]

Ask an auto parts store to read the codes for free Then decide if you should tow or drive to a shop depending on the code and symptoms

[Anthony20]

If you want a rule of thumb think of the light as a signal not a verdict Get a diagnosis soon even if the car seems fine