Have a weird problem with my CTS. The car will start... sometimes... I can tell if it's not going to start because when I turn the key to the on position only the 'BRAKE' and 'Theft' lights will light up. If I turn the key on and off a few times eventually the other lights will turn on, and I can start the car. Another issue is sometimes when the car starts, it will immediately shut off. I then just have to repeat the process I explained earlier until it stays on.