Hello my name is Ted Doherty and I am on SSI which means I don't have very much money, I bought a 2010 Chevy Impala it has a key to start it but it won't open the door, so if the battery is dead I can't get in the car. I was at a salvage yard the other day and was able to get a ignition cylinder and a door cylinder both with the same key from a 2009 Impala. When got home I took out the cylinder from my ignition and swapper the guts in the proper order. So my question is, can I reprogram the key to my car, it turns but won't start the car. Please get back to me as soon as you possibly can. Thanks In Advance!!!