Are you talking about pedal pulsing or car shaking upon braking?
I think a lot of the judder comes from the rear brakes and/or rear hubs. I feel mine more in the seat than the steering wheel.

After I replaced the front hubs the judder is a "sometimes" thing, leading me to believe it's when I push hard enough to engage the rears it happens. Another item is that when I over adjusted the rears one time the judder got worse. I am in process of budgeting for rear hubs anyway at 150,000 miles.

I should also mention that my judder went away temporarily everytime I have replaced anything on the front. Brakes, rotors, struts, axles etc.

 

Hhr not only one having front end problems,lots of cars on the road having same issues do to road conditions,check your everyday routes are roads really messed up,that's the main issues around me plow trucks/winter really hard on roads.no car can handle that without repairs,off-roading on concrete not fun.
If you had firestone(repair shop)satistics,very very busy due to cold conditions and street.

 

At our shop we turn the rotors on the car, it really seams to help. Just a thought.

 

Hey there C@Bush,

We’re sorry to hear of this problem with your HHR. Please feel free to reach out to GM of Canada if any extra assistance is needed. They can be reached at 800-263-3777 Monday through Friday from 7:30 AM until 11:30 PM and Saturday from 7:30 AM until 6:00 PM EST. If you have any questions please let us know.

Kristen A.
Chevrolet Customer Care