Think about how many HHR's have been sold. Think about how many owners are here. Although it sounds high because you generally don't talk about the good things you talk about the bad ones it's probably not all that high of a percentage. I would venture to say most of the brake problems are caused by incorrect torque sequences when installing or rotating tires.

 

BINGO !

The only few instances where I had rotor vibrations were all caused by someone (usually a dealer) tightening the lugs too much or by myself when I neglected to clean the hub surface when changing from winter to summer wheels.

I now "micromanage" my rotors. I use a torque wrench everytime I put a wheel on, and nobody but myself touches my wheels or brakes - ever. If I do get service where I think they may have taken the wheels off, I'll retorque ASAP no matter what. When I need new tires, I drop the extra set of wheels off. So far I've made it past 10K without a hint of vibration.

Yves

 

had the rotors turned at 12000, now bad again at 30000 (actually started pulsating several thousand miles earlier.) I went and replaced the rotors and installed ceramic pads..also torqued the lugnuts. Ill see if that makes a difference...