The car will turn over and some times it wil start and some times it just turns overI and will not start.It has been to the dealer and they did not find what was wrong. The seat seems to work after he set it manualy and now works automatically.

If the car starts and runs fine when you first start it in the morning or when its cold from sitting for a few hours after driving it but won't start if you drive it somewhere and get the car upto operating temp and then shut the car off and try to restart it with a few mins or upto a half hour basically when the car is hot then you might be looking at a bad crankshaft position sensor. A bad crankshaft position sensor can keep the car from starting mostly when its hot. If the engine control module doesn't see that signal it doesn't know the engine is running so it never sends fuel to the injectors.