Bought my cobalt ss new from dealer, with less then 5,000 miles rear brakes were squealing and very obnoxious. Upon inspecting and bringing the car to the dealership was told that my brakes had gouges in them and needed to be refinished and cleaned as well as new pads installed. This was not covered under the warranty as they said it was wear and tear and the noise was normal.
2008 Chevrolet Cobalt SS brakes complaints
Page 2 of 4: complaints 11 to 40 of 73, newest first, as owners wrote them.
Rear brake rotors have massive gouges causing a grinding noise.
1. Begin squeaking and e brake begins to no longer hold the car 2. Rear breaks pads wear out very quickly about every 10,000 to 15,000 miles 3. Put new pads on.
At 8,000 miles the rear brake rotors were deeply groved. The front rotors looked fine, no groves. At 18,000 we had to swap out the pads as the friction surface was completely gone. We discussed the problem with the dealer on both occasions, but they said there was nothing they could do as there was no recall. I also tried to question if the problem was with the rotors or pads or calipers, but they said they could not answer these questions. I'm just looking for some answers and service support.
The rear brakes on the 2008-2010 models of the chevrolet cobalt ss wear out immaturely causing pulsation, lack of braking poor, and costly fixes.
I have noticed excessive wear on my rear brakes and groves forming on my rotors too. I have a 2008 chevy cobalt ss turbo. The dealer is saying it is normal wear and tear but I believe it is something more than wear and tear. My complaints to the dealer has gone unheard and will not be addressed.
My rear rotors have scarred so bad it is affecting braking, and they have already been replaced once. They are noisy, dangerous, and visually unpleasing.
Rear brakes wearing out, parking brake does not hold, squeals when stopping.
Rear brakes on 2008 chevrolet cobalt ss worn significantly. Parking brake has very little tension. Grinding noise also comes from rear brakes.
Under normal daily driving conditions (majority is commuting), my rear rotors and brakr pads were replaced at 21,259km, quote from service order from my dealership, "rear brakes at squealers, confirmed squeal noise from rear. Found rear brake pads at squealers. Both rotors badlyscored. Machined rotors lr19.0mm and rr19.10mm replaced rear brake pads". Then at 42,465km brought vehicle to dealership as I could smell burning brakes from the rear end after only 20 min of daily average driving . Following is a quote from my dealership work order, "cause: seized/binds/sticks. Found rear brakes @ 2mm remaining on rear inboard pad. Checked complete hydraulic sys. Checked for ABS codes. Checked for bulletins on rear brakes. Checked e brake no problems found. Removed rear calipers and found calipers sticky. Need to be replaced both rear calipers sticky. Need to replace both rear calipers, rotors and pads. Inner pads 2mm outboard 6mm and rotors undr min. Replaced both rear calipers, rotors and brake pads. Bled brake system". Then my dealership followed with "this will be the last time gm will replace rear brakes". As far as I am concerned if the rear brakes are inadequate fro the application and are being worn out and damaging brake parts every 20,000km or so then a recall needs to be done with replacements of an adequate breaking components.
The rear brakes on the chevrolet cobalt ss are pure crap. They squeal pretty badly when you come to a stop, no matter if it's a fast stop or a slow stop. It gets even louder when they get hot. I've taken to my car to the dealer since my 08 cobalt is still under warranty and they've told me that high performance brakes are supposed to be loud...I'm sorry gm, but not this loud! So they rotated my rotors, and gave me new brakes about a month ago, and it's still as bad as when I got the car back in april of this year.
1) I drove my car and used the brakes. 2) scored brakes, sounds like a 747 coming in for a landing every time I stop. 3) nothing yet, called the dealership today (05/24/10).
Rear brake rotors and discs wear out far too quickly in average day to day use.
The rear brake calipers fail to release properly, causing the inside brake pad to wear more than twice as fast as the outside pad. Therefore forcing the rear pads to be replaced twice as often as the front brake pads.
My 2008 chevrolet cobalt ss rear brakes had to be changed before the front brakes (40000km). The rotors were heavily scored to a point where they could not be resurfaced. The pads were worn out unevenly and had a different levels of wear. The front brakes at 60000 still have lots of brake pad left. I replaced the brakes myself and did not keep the old parts.
Rear brake pads worn out after 20k mile and rotor are groved and you can hear the brake pads rubbing metal on metal. Also the rear calipers aren't releasing the rear rotors correctly due to caliper slide pins not being lubricated from the factory. Front brake pads and rotor are wearing normally. I dropped my car off at my local chevrolet dealership for the brakes to be fixed under warranty. I was told if it was a caliper issue then it would be covered underwarranty.
The rear brakes on my 2008 cobalt ss/tc were completely shot at around 14000 miles. The gouges in the rotors were too deep to get turned and I had to do a full brake job on the rear brakes because gm said that they only cover the brakes until 12,000 miles. The new brakes still make strange noises and when the car is in reverse sometimes a very loud screech comes from them.
The problem I am experiencing with my 2008 chevrolet cobalt ss is the rear brake pads wearing out quickly under normal driving conditions. Because the brake bias is set to the front brakes, they should wear out long before the rear brakes. I believe the problem lies in the hardware of the braking package. Either the caliper is causing the pad to constantly rub the rotor or some other issue is present. I first noticed that the rotors were scored at about 3,000 miles, was told it was normal. At 20,000 miles the rear pads were down to the metal on the inside pad. Also, its not just a problem with the rear pads, every rotor on the car is scored beyond normal wear. This is a known problem with a lot of the 2008+ ss cobalts, not with the way they are being driven. General motors is aware of the problem, as many people have complained. When I took my car to the dealer, they too said that it was uneven wear that should not have happened. But, instead of looking into the cause of the problem, they simply replaced the rear pads. This was a temporary "patch" not a fix. In 5,000 miles, they'll start to wear again unevenly. I think general motors needs to evaluate the rotors and pads on these cars. Under no circumstances, is there an excuse for the brakes and rotors to be worn out on these cars at 20,000 miles under daily driving conditions. If the problem only effected a couple of cars, it could be blamed on the driving patterns of the operator. However, this is a common problem for all the owners as passed along through enthusiast car forums.
Rear brake calipers not applying even force on both inner and outer pads, causing premature wear and tear on the pads and rotors, and additional stress on the braking system.
Everything was fine until about 6000 miles when I noticed slight brake noise coming from the rear brakes. I didnt notice the groves in the rotors until after I got stuck on interstate 465 in the snow because the back brakes were dragging. I know the back brakes were dragging because I had to put my car into first gear and push my own car with the door open. I know bad idea. I noticed that the rear tires didn't start rolling until they got to clean pavement. There was less than one inch of snow on the roads. It took me two hours to get home from work which is a fifteen minute drive normally. I had to wait a week for the snow to melt so I could drive my car to the dealership and they gave me a loner vehicle which I drove for over three weeks waiting for them to fix my car. They couldn't tell me what was wrong but they did replace the pads and rotors. This occured at roughly 10,000 miles. And 10,000 miles later the rotors were grooved again. So I went back to the dealership again this time they didn't want to fix the brakes but my uncle knows the owner of the dealership and he got them to fix it. I drove a loner again for a few weeks. And finally I took my car back to the dealership last week with 32,895 miles on it with the exact same problem. This time they said g.m. Won't cover the repair under warranty. They said the brakes failed due to being dirty. Lol ! I wash my car every week. I still have the defective parts on my car that I drive everyday. The brake noise is slowly getting worse. Almost forgot due to the rear brake issue my rims have discoloration from the heat. Not horrible but it shouldn't be like that.
1. Normal driving conditions since purchase of vehicle in july 2008. 2. Failure includes extreme premature wear and scoring on rear rotors and uneven wear on rear brake pads. 3. Original dealership turned and milled rear rotors at 7800 miles. Vehicle is now back at same dealer at 16000 miles for same issue.
Rear brakes wearing way too early.
Brakes wore out prematurely and grind.
Rear breaks grinding and worn out after 15k miles.
Back brakes on my cobalt ss are shot and the rotors and scorched and worn out.
I own a 2008 chevy cobalt ss. The rear brake pads were wearing out very quickly and damaging the rotors. First noticed a grinding noise on the rear brakes at 950 miles and now at 16,500 miles, I am sitting at the dealer service dept. Being told that my pads and rotors need to be replaced. The previous dealer ignored my requests to have this corrected before it got this bad. This dealer looked at it and they said that the car is not safe to drive until the brakes are replaced. So I am waiting to see if they will repair it or give me a loaner until it can be repaired. *tr updated 02/02/10 *bf updated 02/05/10
The rear rotors are grooved because of the faulty design and the pads are scoring the rotors.
The rear brakes on my 2008 chevy cobalt ss turbocharged make excessive noise in reverse, this problem is common from what I understand, and is no fault of the owner.
Just bought car used with 26k miles and rear brakes are metal to metal. So far dealer cant find parts in there system for my car.
Normal driving has caused my rear brakes to be totally shot at 15000 miles. Have not tried to warranty the item yet, but I have heard they will not replace the item.
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