2020 Silverado RST - Something sways when stopping

[Ronnie Wasson]

When backing into my garage or creeping forward very slowly, as soon as I come to a complete stop I can feel something shift/sway. You can't feel where it's coming from and I can't find anything loose or hanging. Whatever it is isn't hitting anything because there is no sound or abrupt jolt. Has anyone experienced or heard of something like this? 

 

For reference, 2020 Silverado RST, crew cab, short bed, 5.3L (my profile picture)