Alarm symbol flashes as normal, double click fob and the symbol goes out but alarm still on and no disarming chirp or flashes. I quickly switch ignition on and off and the light starts flashing again but no matter how many times I click the fob, no joy. New battery in fob and when I took it to the dealer it seemed to start responding OK got it home and same problem. This has been happening for about three weeks now and can take up to 2hrs to get it to respond. Help!!!