gday that happend to me it took 3 times to get it bound again but mine stayed bound, did u try and bind it at the race, becasue if some1 else was binding at the same time u may have got 2 controlers bound to it, becasue mine bound to some1 else, try and bind it at home and then if it doesnt work take it apart and see if there is anything wrong inside, eg dirt, water, something shorting the circuit. if there doesnt look to be anything wrong BIN IT..