My dealer can’t give me a straight answer and it’s annoying. Anyone know the answer

 

Tyre warranties are covered by the tyre manufacturer. What is your concern?

 

The factory tires are always garbage. If in doubt just get them replaced. I got Falken's installed on my 2018 last year and never looked back.

 

Google is your friend. I have never had any luck in many decades of buying new cars to get any warranty on tires on a new car. They are usually just covered by a manufacturer defect warranty, not for mileage but getting that defect warranty may be difficult to prove and get.
https://www.google.com/search?q=do+t...hrome&ie=UTF-8

 

Lexus covered the tires for one year/10k miles, check your user manual.