We have a 2013 Prius V that numerous times when trying to start, it will not shift into gear. We are stepping on the brake when pushing the start button. When stepping on the brake and pushing the start button, the dash lights up but the "READY" light does not come on. If you try to put it into gear, it will only go into NUETRAL and the "P" starts flashing. We have had it into the Toyota dealership about 5 times and they run tests but can't find anything wrong. Has anyone else had this problem. Any suggestions. We are at wits end.