The tyre sensor reset button is way down low, set in the underside of the dash below and to the left of the steering column. You have to kneel on the floor and put your head in the footwell and look up to find it. There are two buttons and the one on the left is the tyre sensor re-set one. Can't remember what the other one is for. It is so well hidden you would think it is not there, as I did. It is nowhere near where the picture in the handbook shows it to be. (My handbook shows a LHD vehicle anyway, which is even more confusing). It is much further under the dash than the picture suggests. Hope that helps. Nick