I have a 2005 pontiac grand prix supercharged i noticed the other day when i was driving and hit the brake going down hill the break pedal would lock up and push back against my foot while making a horrible sound and now its gotten worse it does it just about any time i have to really step on my break but not so much if i can just ease to a stop also the traction control disabled and it told to service the abs system. then yesterday it started making a whineing sound when im driving especially when turning the stearing wheel but i do still have power steering. please help