Is this covered by warranty?

[Jess85]

my partner has a work car so i drive our xr4. the only time there is ever a passenger in the car is on weekends when he drives and im the pasenger.
i got in the car today (sitting in passenger seat) and i heard this strange noise. i looked down and the stitching on the seat has come apart between the cloth and the leather part on the side. would this be covered under warranty? i can see the foam etc under the seat through the tear