I had to put a new battery in the car and the computer would not re-calibrate I have driven it 300 miles so far and its still not showing all systems operating they keep tell me you got to keep driving it everyone tells me a different way I have to drive it it is ridiculous they are very rude at the service centers Koppel This is ridiculous I cannot get anyone to give me an exact answer on how to get the computer User's recommendation: This is ridiculous I cannot get anyone to give me an exact answer on how to get the computer.