GLK63AMG

Well I closed the door and heard like a piece of something clink around and didn’t think anything of it. Started driving down the road and saw I couldn’t see out of the mirror. I adjusted it and when going over bumps it’s moved a lot. Hit a bigger bump and the glass popped out and was flailing all over the place. Pulled over and disconnected the wires. Looks like all the tabs around the ring snapped off and sheared completely clean. Anyone have this happen? GLC only has 11k miles. Surely warranty would cover this. Definitely no signs of being hit or damaged.