2015 Q50 back tires issue.

[dwilson]

My first post and new to the infinity forum....my 2015 Q50 which has just under 8,000 miles but I noticed during a weekend trip that I have 0% tread life left on my back tires. I've no warning lights active and have felt nothing out of the normal while driving other that a slight shake during some hard rain a couple of weeks back. How can be possible during a 5-6 week timeline?

Thanks for your help!