Does a 'certified' [used] vehicle offer you any guarantees on the vehicle (not considering warranty)?
Lexus CPO has specific thresholds for amount left on brakes and tire tread depth. Some Lexus CPOs have been in “minor accidents”, the sale guy told me no frame damage, but that can still be fairly severe.
I didn’t get a response back when I asked the Toyota sales person about CPO criteria, so sounds like $1500 for the warranty.