Taking my 09 tacoma to get its clutch checked out

its a 09 tacoma with not even 16k miles and im getting clutch slipping when shifting from 2nd to 4th and 3rd to 4th. and he said it wasn't covered under warranty because its a wear part is this true because it seem really weird that its going out this fast. kinda figured it would be covered under the 5 year power train warranty ? and if it is bad they want to charge me $900 for the clutch which seems high ?

 

some dealers have covered . seems like u still have to fight them about it my 2010 reg cab started sliping at 20,000 seems the dealer didnt think so . so at 58,000 i replaced it . they are not covered under any warr , read the book in the glovebox. its a wearable. the 4cyl 5 speeds have a luk clutch in them something is funny with the preesure plate . mine sliped the colder it became outside the more it sliped . luk is junk make sure u replace with a aisin setup call toyota at the ex number and tell em. maybe it will help others good luck LUK SUCKS GO YOTA