I purchased a 2010 toyota tundra new in july 2009. since that time, the gas pedal issue has been supposedly remedied twice and the floor mats have now been changed out. however, a new issue has begun recently with my vehicle in july 2010. when descending mountain highways, the truck begins to shudder when applying brakes. i do not ride my brakes going down these mountain highways and typically shift down to lower speed. i took my vehicle to the dealership for its quarterly maintenance and explained the issue. the service advisor said i would probably need a brake job and i replied that would be impossible as the vehicle has approximately 15k miles and i am not hard on brakes. i asked that they check the rotors as i thought they might be warped. after the service department checked the vehicle, they found a warped rotor and machined it back to tolerance. a week later, i am driving the same mountain highway when i discovered the issue and it is doing the same exact thing. i believe toyota has an issue with the brakes and need to be corrected. *tr