Hello everyone. New to site. I have a 2012 3.0d Lux. I have just replaced the main battery, the old one was not holding enough charge. After replacing with new fully charged one, my key fobs are no longer recognised to start the car. Have replaced fob batteries for new, and still no joy. I can still use fobs to lock/unlock car. Worried I may of fried some electrics. Any help greatly appreciated.