One problem related to brakes failed has been reported for the 2007 Chevrolet HHR. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Chevrolet HHR based on all problems reported for the 2007 HHR.
The brake system on our 2007 Chevrolet Hhr violently shakes the whole car when trying to brake at higher speeds especially going down hill. The brakes are no where near needing replaced yet and the chevy dealer we bought it from claims they know about the problem but cannot do anything about it without charging us for a repair??? I do not need new brakes I just need the ones on it to work properly. A search of the internet and this site demonstrates a design or parts problem since many owners have the exact same problem. I would invite anyone to contact me to take a ride in the car to see how unbelievably scary it is to be behind the wheel coming down a hill and trying to get it stopped. Some one needs to look into this before someone get seriously hurt when the brakes fail. I have owned this car since new and after the way the dealership treated this and our concerns this will be the last chevy in our driveway.