I have a 2009 chevy cobalt ss. At approx. 4000 miles the car was taken to the local chevy dealer due to the rear brake rotors deeply grooved. The dealer turned the rotors and reinstalled the brakes. At approx. 7000 miles the rotors are starting to grove again. The dealer replaced the rotors after a lengthy conversation with alot of reluctance. The dealer states and has a bulletin for gmc that noise and squeal are typical with a high performance brake system. Please note it's not the squeal that concerns me it's the deep grooving of the rear brake rotors. Although it hasn't turned into a safety problem yet it is a concern. I hope you will investigate this problem before it becomes another toyota and people are hurt or possibly killed be cause of prematurely grooving and wearing of the rear brakes on this car.
2009 Chevrolet Cobalt SS brakes complaints
Page 4 of 7: complaints 71 to 100 of 163, newest first, as owners wrote them.
Rear brakes on 2009 completely worn after only 35,000 km.
Rear brakes wearing out after 4000-5000 miles. New at 0, changed at 5044, now bad again at 10,600 miles. Many many more people reporting same thing at www.cobaltss.net.
2009 cobalt ss - rear brakes worn. The dealer has ordered new rotors but not pads.
480 miles rotors replaced 1200 miles brakes bad again squealing and grinding I am in fear everytime I drive it of brake failure this should be brought to the attention of cnn and the bbb.
Rear disc brakes on my 2009 chevrolet cobalt ss turbocharged have failed after only 15,000 miles. This has caused a significant safety concern. The disc brakes have since worn into the rotors, causing property damage. On two occasions, I visited a chevrolet dealership and asked about the squeaking in the brakes. On both occasions, I was told that "under certain...conditions, occasional brake squeal, squeak, or other noise may be heard..." [chevrolet #08-05-22-004: information on brake squeal/squeak noise - (jul 15, 2008)] [xxx] [xxx]
I bought a new 2009 cobalt ss turbo on april 15th 2009, about 8 months later my rear brakes had grooves in the rotors and my left rear caliper was sticking. This caused very poor braking performance. I took the car into the dealer and they had to replace the left rear caliper, new rear pads and they machined the rotors. I have have since had to take the vehicle back into my dealer due to a ring of rust building up on the left rear rotor. I have reason to believe that the rear brakes on these cars have defective parts from the factory. There are a large number of other 2008-2010 cobalt ss owners having these issues.
Rear brakes grinding and squealing I am in fear of my life with all the car recalls brakes are not something to mess with...I am afraid to drive my new gm cobalt ss for fear of an accident and failing brakes !
2009 cobalt ss with disc rear brakes. Mileage 16588. The rear brakes are getting extremely scored (look like a record with groves) and it sounds like the parking brake is dragging. I noticed this started 2 days ago when it felt like the parking brake was still engaged when I went to pull out of a parking spot. The rear of the car squatted down, to me indicate the brake was hung up. Then I heard a "twang" sound followed by a pop. It sound like a bring that was hung up finally let loose. After that incident I started to notice that at speed less than 10 MPH you get a noticeable scraping sound from the rear brakes. It sound similar to when you turn rotors on a brake lathe.
Had only 2000 miles on my 09 cobalt and rear brakes started to score from inner brake pads. Dealership wouldn't fix due to bulletin gm sent out not to replace. Had to replace brake pads on own. Car would have grinding noise from rear before replacing brake pads.
Rear brakes on 2009 cobalt ss t/c only 1500 miles on the car and rear rotors are absolutely trashed. Outside pad looks good inside pad is down to the medal.
Rear brakes are wearing down unusually fast, particularly on the inside surface where it is hard to see. Brake rotors are grooving severely. Dealer has resurfaced the rotors and sanded the pads once already less than 4000 miles ago, and now they will have to be replaced. Clearly, failing brakes is a serious issue.
The rear brakes started squeaking really badly at 5000 miles on my new 2009 chevy cobalt ss. While performing a tire rotation, I inspected the brakes and rotors for unusual wear. I noticed two really deep grooves/scores on the backside of the driver side rear brake rotor. I took it to the dealership where they agreed that was not normal wear and replaced the rotor. The brakes still squeak but not as bad. It is unfortunate though that I have to drive around in a new car and am embarrassed to come to a stop with all the squealing. I was handed a tsb (#08-05-22-004) stating that squeaking brakes are normal and are not to be repaired. I can assure you that no one told me to expect such awful noises from my new car within the first five months of driving it.
My brakes vibrate and have deep grooves in them and I almost got turned down for repairs because they thought it was from improper use of my vehicle.
2009 chevrolet cobalt ss. Sedan. Extreme rear brake pad wear (70%) and rear brake rotor damage after only 4000 miles. Why has nothing been done about all the complaints regarding this serious issue? I do not abuse the car and do not apply hard brakes. I only engage the parking brake when the car is stopped and parked. Investigate, recall and repair.
Rear brakes wearing.
Rear brakes failing on a 2009 cobalt ss squealing and grinding feeling like they are not going to stop...after toyota I am afraid to drive this vehicle.
I have a 2009 chevy cobalt ss with excessive rear brake wear on the rotor and pads. The front brakes show normal wear, but the rear rotors have major grooves in the inner surface.
8k miles, driven normally, 90% freeway. Rear brakes scored and grinding since 6000k miles. Parking brake does not like to let go when left for more than an hour. Awaiting response from shop.
Car had approximately 15,000 miles on it when the back brake pads wore out. Took the vehicle to my mechanic he said something was not right and I should take it to the dealer and get it fixed for free due to faulty install. Dealer assured me there was nothing wrong and charged me a 60 dollar diagnostic fee. Why would the back brake pads wear out before the front..and why at 15,000 miles with conservative driving? Something is clearly faulty with either the brake pads themselves or how they are being installed.
Rear brakes have worn out way pre-maturely on my new 2009 chevrolet cobalt ss turbo. My rear rotor is almost completely gone and rusted over. It grinds, and squeals really bad, and I just hit 25k miles.
Brakes failed, slid in the snow and hit the passenger rear rim against the curb. This even lead to the rim being replaced, along with the axle. After the car was fixed, I took the car back to the dealer where it was looked over too see if there were any manufacturer's defaults. Then I was told they could do nothing for me because they only had a 12 month/12,000 mi. Warranty, and my car was 17 months old and had 19,200 mi., so I had to file a complaint with general motors. I then replaced the rotors and pads around the entire car, out of pocket.
Brakes failed, slid in the snow and hit the passenger rear rim against the curb. This even lead to the rim being replaced, along with the axle. After the car was fixed, I took the car back to the dealer where it was looked over too see if there were any manufacturer's defaults. Then I was told they could do nothing for me because they only had a 12 month/12,000 mi. Warranty, and my car was 17 months old and had 19,200 mi. I then replaced the rotors and pads around the entire car.
The rear brake rotors are showing deeper than normal grooves at less than 4000 miles. Pads showing premature wear. Front rotors are nice and smooth.
I noticed that the rear brake rotors were slightly scored when I got the car from the dealership new, I didn't think much of it since I was excited to get the car. They also make noise then applying the brakes. I've noticed to that some times after driving and parking, I can smell burning brake pad material. I currently have about 2500 miles on the car and the rotors have scored more considerably. I believe that the pads and rotors won't make it another 2500 miles without being replaced. After searching the internet I found that others are having this same issue with their cars. The car is a 2009 chevrolet cobalt ss sedan. I found that this issue affects the ss sedan and ss coupe alike. It would be nice if gm would issue a recall on this, as this could pose a potential safety issue down the road.
I noticed that the brake rotors were slightly scored when I got the car from the dealership new, I didn't think much of it since I was excited to get the car. They also make noise then applying the brakes. I've noticed to that some times after driving and parking, I can smell burning brake pad material. I currently have about 2500 miles on the car and believe that the pads and rotors won't make it another 2500 miles without being replaced. After searching the internet I found that others are having this same issue with their cars. The car is a 2009 chevrolet cobalt ss sedan. I found that this issue affects the ss sedan and ss coupe alike. It would be nice if gm would issue a recall on this, as this could pose a potential safety issue down the road.
Well, I put in a complaint a while ago about the rear rotors wearing fairly quick. Now the rotors need to be completely replaced. The inside part of the rotor is extremely damaged and now braking distance is nearly 1.5 times greater than before. Its dangerous.
Rear brakes are grooved, grinding, and squeaking. Do not stop the car well.
My cobalt ss t/c has 9000 miles on it and I have been experiencing a very loud squeal coming from the front brakes since 5000 miles. Rotors were turned by dealership and pads replaced yet the squeal remains. A squeal so loud it can't be ignored yet gm states in a bulletin released recently that this is normal for high performance brakes. Gm needs to be held responsible for the hundreds of complaints of this braking system in recent months. Thank you
Rear brake pads are no good and need to be replaced. I have 15xxx miles and I am a very good driver and never have abuse the car. It is being replaced under gm warranty gm stated that all cobalts ss from 08-09 have this problem.
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