Sorry, I so not understand your question? "Crabwalk" is a mode used by the 4WS system, all of the Hummer EV SUT's I have seen were equipped with 4WS. So if the truck has Crabwalk, it has 4WS...Any update on four wheel steering for the hummer truck. I have seen plenty of mentions of crabwalk but only one mention in a previous forum about four wheel steering. Is this something that GMC is still thinking about bringing to the table or will this be in later years.