Ok, so I have had my 2010 SHO for about 5 months. I bought it as a CPO, and so far very glad that it is certified. The first issue after a week of owning was the speedo issue which I got fixed by the TSB and a coil went bad which was missing horribly. About a month after owning I noticed when cruising on the freeway it almost felt as it dropped out of gear. When it happened I looked at my gear selector in the dash and I noticed none of gear letters were lit up orange. So I took it to the dealer and they said it was caused by a loose connection in a harness that had water in it. So they cleaned the connection and put die electric grease in it also. At that same time they had to replace the PTU due to it leaking. So a week after getting it back it was doing the same thing, dropping out of gear and no lit up letters. I can shift the car to neutral and back to drive and its ok. I brought it back and said I found a TSB that sounds identical. That TSB is 10-21-2, the dealer says that the particular TSB does not include my vehicle. They said they can put the vin in on the computer and it shows all TSBs. And that one is not available for my car. Anybody know of anything else?