There was some issues with the SQ4 models where the tires were sticking / unsticking on the pavement do to the use of All Wheel Drive on slow tight turns. It wasn't anything to be concerned with but it's hard to say if this would be your problem. You can have problems with wheel bearings or a few other issues. If you're under warranty maybe just show the techs at the dealership to see if they have a concern.
Hope that helps!