sounds like you will need to have key fobre- programmed to get you back to normal - BUT you should have a 'door lock code' which will bypass the immobiliser - depending on your individual code it will go something like - say your code is 2-4-6-8 - NOW with car locked put key in driver's door lock - turn twice to left (returning each time to central position) then four times to right - six time to left - eight times to right. if you haven't got the code most garages have a gadget to find it - i think simply by giving them te reg' number - (phew) good luck !