Hi. In the past the esp light on the dash has come on when it should do - when I pull away at roundabouts too fast etc. But the other day I noticed a lot of wheel spin and thought thats odd. So I tried to wheel spin off or break suddenly and couldn't get the ESP light on the dash to come on. When I press or depress the button the light on the dash turns on and off as it should. So... am I right to think that something is wrong, or is it not supposed to stop me skidding when breaking and traction control when pulling away?