Your bas esp light came on what does it mean?

It means that you have no traction control, if there is nothing wrong with the system, just press the esp button and the system will turn on. And the light will go off. the top part of the button will turn it off, and the bottom will turn it on. If the system is working.

When you turn off the car, with the key. And restart the car, the light should stay off.

This is normal.