If the car is currently behaving normally and the engine light is NOT flashing you can drive it into any big box auto parts store location where they will pull error codes from the computer for free. Write down the exact codes. They look like “P1234”
Don’t bother with what anyone says about the codes. Just write down the exact codes and post them.
Along with posting them give us the mileage and all the info you have about your maintenance history (especially around basic tune-up type items like plugs, wires, filters, etc.)
However, as mountainbike noted - if that light starts flashing do not drive it. The tow truck will cost you only a little bit in comparison to the damage you’ll do driving it with the light flashing.