my 07 cobalt ss/sc's rotors have grooves in them already. went to the dealership, they sent me away, saying i ride my brakes! just cause im 18 so they don't take me seriously. i know for 7000km my rotors shouldn't be like that. is it inferior metal that they are using or what? it should be under warranty right? help me out guys.

they should be under warranty for 10k miles i believe

its cause of the brake pads even had the dealrship tell me that after they made me pay but it should be under wannintey for the first 12000 miles. i would go back in and rasie hell

Yea, like stated above, should be covered under warranty. BTW, Welcome to the Site!

welcome to the zoo,nice to see another local member,if you are having a problem getting this replaced at your local chevy dealer,just call up barneswheaton pontiac,they are welcoming any chevy warrenty transfers..Ask for Grant,Adam(hes a new member here) or Scott

rotors are not turned under warranty unless one grove is measured to 0.06". The rotors on the cobalt are not very strong at all. The pads are almost stronger than the rotors themselves much like the cadillac CTS. Our rotors can only be turned about one time before they have to be replaced. If you are not having stopping problems or any squealing/squeaking, then dont worry about it at all.

i would make them put you on some new ones.