Does the warranty cover flat tire repair including new tire if needed.
Tires aren't covered under a new vehicles warranty but always have a new tire warranty.
We don't know ... read your warranty papers
Usually tire warranties will fix a flat or pro rate the tread amd replace it. But I'd read through your warranty.
Depends on what is wrong with the tire, if you ran over something and was the cause of the flat tire or a defect in the tire. If the tires don't have a road hazard warranty, most do not, then you pay for the repair or replacement