2011 Buick Lucerne - Transmission issues

2011 Buick Lucerne transmission goes into gear and runs, after making a stop it w3ill not engage. Turn it off and restart it runs until I have to make a stop.

I hate to state the obvious but you need to have the car checked out by a good independent transmission shop. It’s remotely possible it’s a linkage problem: Buick Lucerne Automatic Transmission Problems But if your luck is anything like mine be prepared to buy a transmission.