Each time I don’t drive for a few days and start driving again, the car jerks/jolts as it’s shifting gears (both when I’m accelerating and decelerating). The sudden jolts is dangerous as I’m gauging cars ahead and behind me as I’m driving. But when I brought it up to the service department, they said they can’t diagnose it if it isn’t happening at the moment, but by the time I’ve driven to a dealership, my car is warmed up and not jolting anymore.