If this vibration only happens when you apply the brakes, suspect warped brake rotors.
Try driving it with all accessories OFF, then apply the brakes. If it vibrates now, but only when applying the brakes, then the brake rotors on your car are warped due to excessive heat during braking, and should be replaced.
P.S. I don't understand what you mean when you say "also this vibration increase when I open the heat system." Please explain.
Friday, December 27th, 2013 AT 6:48 PM