If your warranty is through Toyota then yes they will honor it. They open around 7am and have appointments on weekends as well.
I'm not sure of their hours but I can truthfully say that I've always been treated with respect and courtesy. Their service department is also open on weekends. I bought my 2016 Toyota Corolla there, brand new...my first brand new car and I have only praise and positive remarks.
Good luck on getting ANYTHING done with n a timely manner, its ridiculous on how long they take to do anything in service Dept
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