My 2021 Yukon Denali 4 x4 must be running to shift into Neutral. Found out the hard way when it would not start because of a faulty fuel pump module while parked nose to wall in my condo parking spot. We have 4 floors with three living floors above parking garage. Called road service and they wanted it put into Neutral so it could be pulled out of the space and towed. Calls to the dealer and GM resulted in the finding that it cannot be shifted with the engine off. A special wrecker came and lifted the back wheels to get it out. This seems to me to be a bad design feature.