I have experienced this several times over the last 4 years. Turn the car off
and restart this has worked for me 6-8 times. It has not done this for over a year. Once the car would not start in the morning so I towed it to a shop. It worked perfectly at the shop. If it does this again I would disconnect the battery and try starting again. The cause is likly one of three or four decaying
electonic parts or engine wireing harness. My experience from searching this web site that it is difficult to determine the exact cause for your vehicle
without analizing the fault codes. The parts to repair vary from a few hundred up to $500. I have been lucky with not fixing anything but your situation may be different. People have gone to the dealer and spent a lot of money on repaires, some of them got their cars fixed, some did not. Many have done the work themselves with better results.