You were able to reset check engine light by starting the engine 3 times now its permanetly on how do you reset?

If the check engine light has turned permanently on after previously resetting it, there may be an underlying issue that needs to be addressed. To reset the light, you can disconnect the car battery for about 15 minutes, which can clear the engine codes. Alternatively, you can use an OBD-II scanner to read and clear the codes. However, it's essential to diagnose and fix the root cause of the problem to prevent the light from turning back on.