2009 Chevrolet Cobalt SS complaints

PURCHASED THE CAR NEW. AT ABOUT 3,000 MILES I NOTICED SCORING ON THE REAR BRAKE ROTORS. AFTER ABOUT 12,000 MILES MY EMERGENCY BRAKE STARTED FAILING TO HOLD THE CAR ON EVEN THE SLIGHTEST HILL. AT ABOUT 14,000 MILES THE REAR BRAKES STARTED TO GRIND. AT THIS POINT THE BRAKE PADS NEEDED TO BE REPLACED, AND THE ROTORS TURNED. ONLY THE INSIDE PADS WERE WORN COMPLETELY DOWN, THE OUTSIDE PADS LOOKED RELATIVELY GOOD. *TR

BRAKES STARTED SQUEALING A FEW MONTHS AFTER BUYING THE CAR BRAND NEW. NOW, ABOUT 1.5 YEARS LATER, THEY ARE GRINDING AN EXCESSIVE AMOUNT AND THEIR PERFORMANCE HAS EXTREMELY DECREASED. I FEAR I WILL HAVE TO CHANGE ENTIRE ROTORS AND PADS TO FIX THIS PROBLEM OUT OF MY OWN POCKET WITHIN THE NEXT MONTH ON GOOD AFTERMARKET PARTS SINCE THE FACTORY CAN'T PRODUCE GOOD QUALITY OEM PARTS AND GENERAL MOTORS DOESN'T GIVE A FLYING ****. I INFORMED MY LOCAL DEALER OF THE PROBLEM AND THEY SHRUGGED ME OFF, BUT ONLY AFTER WANTING TO CHARGE ME $60 TO JUST LOOK AT THEM. I SHOULDN'T HAVE TO PAY FOR THEM TO INSPECT BRAKES THAT ARE FAULTY IN UNDER 2 YEARS, AND 20,000 MILES; AND I ALSO HAVE AN EXTENDED WARRANTY THAT I PAID FOR. APPARENTLY, IT'S JUST MAINLY THE REAR BRAKES THAT ARE THE ISSUE WITH THESE CARS, BUT EVERY OWNER I KNOW, WHO HASN'T ALREADY REPLACED THE BRAKES WITH AFTERMARKET PERFORMANCE PARTS, HAVE THE EXACT SAME ISSUE, AND IN SOME CASES, MUCH WORSE. IF THE BRAKES FAIL WITHIN THE NEXT MONTH OR TWO AND AN ACCIDENT HAPPENS(QUITE POSSIBLE SINCE RUST IS APPEARING ON ONE OF MY REAR RIMS DUE TO THE ROTORS BEING SCOURED SO EXCESSIVELY, I FEAR ONE OF THEM MAY LET GO AND SNAP COMPLETELY OFF)BEFORE EITHER A RECALL, OR I PUT AFTERMARKET PRODUCTS ON, GM WILL BE FACING A LAWSUIT BY YOURS TRULY; ESPECIALLY IF SERIOUS INJURY OCCURS.

I HAVE A 2009 CHEVY COBALT SS. I BOUGHT IT IN MARCH 09. THE VERY FIRST COUPLE OF DAYS, I HAD A CRACKED TURBO COOLER AND HAD TO HAVE SOMETHING ELSE MAJOR REPLACED. THEN AFTER 24K MILES, I HAD TO HAVE THE REAR BRAKES AND ROTORS REPLACED. NOW AT 31K MILES, MY SRV BRAKE SYSTEM LIGHT IS COMING ON. WHAT IS GOING ON WITH THE BRAKES ON MY CAR??? *TR

REAR BRAKES ON MY 2009 CHEVY COBALT SS ARE [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

TL*THE CONTACT OWNS A 2009 CHEVROLET COBALT SS. THE CONTACT STATED THAT WHEN TRYING TO DECELERATE HE NOTICED THAT THE BRAKES WOULD MAKE A LOUD SCRAPING NOISE. HE THEN INSPECTED HIS VEHICLE AND NOTICED THAT THE REAR ROTORS WERE MAKING THE NOISE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 3500.

FULL REAR BRAKE REPLACEMENT AT 17K. WARRANTY ONLY COVERED CALIPER REPLACEMENT. *TR

REAR BRAKES ON A 2009 COBALT SS TURBO SCORE AND GRIND WITHIN 10,000 MILES. YOU HAVE TO PUT AFTER MARKET BRAKES ON THE CAR. *TR

I LAST CHECKED MY BRAKES WHEN I TOOK OFF MY SNOW TIRES IN MARCH WITH 18,000 MILES ON MY CAR. EVERYTHING LOOKED FINE, FRONT AND REAR PADS LOOKED ALMOST NEW WITH PLENTY OF MEAT ON THEM. IN JULY, I NOTICED THAT THE REAR BRAKES WERE STARTING TO GROOVE, SO I MENTIONED THIS TO THE DEALER WHEN I WENT IN FOR A RECALL AND THEY RESURFACED THEM FOR ME (22,885 MILES). I ASKED ABOUT THE PADS AND THEY TOLD ME THAT THEY HAD LOOKED AT THEM AND THEY WERE FINE AND EVERYTHING LOOKED NORMAL. IN OCTOBER, I NOTICED THE GROOVING COMING BACK. I TOOK IT BACK TO THE DEALER, AND THEY CHARGED ME TO REPLACE THE REAR DISKS AND PADS AT 29,170 MILES (THEY DID THROW IN THE ROTORS FOR FREE DUE TO THE ABNORMAL WEAR). AFTER THE SERVICE, THEY GAVE ME THE OLD REAR PADS AS PER MY REQUEST. UPON RECEIVING THEM, I COULDN'T HELP BUT NOTICE THAT THE INNER REAR PAD, WHICH HAD BEEN WEARING IDENTICALLY TO THE OUTER REAR PADS WHEN I CHECKED AT 18,000 MILES, WERE WORN ALMOST TO THE BACKING PLATE! THE OUTER PADS STILL HAD 1/4" MATERIAL LEFT, SO IT SEEMED CLEAR THAT SOMETHING WAS NOT RIGHT. THE DEALER COULD FIND NO REASON FOR THIS WEAR AND STATED THAT EVERYTHING WAS NORMAL BESIDES THE BRAKE WEAR. IT SEEMS INCREDIBLE THAT A FRONT-HEAVY, FRONT-DRIVE CAR WOULD WEAR THROUGH ITS INNER REAR BRAKE PADS WHILE ITS FRONT PADS (WHICH DO MOST OF THE BRAKING) AND OUTER REAR PADS STILL HAVE PLENTY OF LIFE LEFT WITHOUT THERE BEING SOME KIND OF PROBLEM. I STILL HAVE THE PADS AND ALSO HAVE PICTURES. I AM CONCERNED THAT IF THESE PADS WEAR DOWN

I PURCHASED MY 2009 CHEVY COBALT SS/TC IN EARLY JUNE OF 2010. IT WAS A GM CERTIFIED USED CAR. WHEN I INSPECTED THE CAR BEFORE PURCHASING I NOTICED THAT THE BRAKES WERE HEAVILY WORN AND I LET THE SALESMEN KNOW ABOUT IT. HE TOLD ME THAT THERE WAS ALMOST 70% LEFT ON THE PADS AND EVERYTHING CHECKED OUT FINE . SO I DID THE DUMBEST THING I COULD DO AND TOOK HIS WORD FOR IT. AFTER ABOUT 5 MONTHS AND 4000 MILES LATER MY REAR BRAKES START MAKING A SCRAPING NOISE WHILE IN REVERSE AND WHILE LIGHT BRAKING AROUND CORNERS MOSTLY OUT OF THE PASSENGER SIDE.. I TOOK IT IN FOR MAINTENANCE EXPECTING SOME KIND OF MANUFACTURER DEFECT BUT INSTEAD I'M ACCUSED OF BAD DRIVING AND LETTING MY E-BRAKE DRAG. THE ISSUE WAS THAT THE REAR CALIPERS WERE STICKING AND NOT RETRACTING PROPERLY AND THE PISTONS INSIDE WERE BENT CAUSING UNEVEN PAD WEAR. BOTH SIDES MOISTURE BOOTS ON THE PISTONS LOOKED LIKE THEY WERE PINCHED AND BROKEN DURING THE FACTORY INSTALLATION. SO NOW HERE I AM WITH A BILL FOR ALMOST $1000 DOLLARS FOR REAR PADS, ROTORS AND CALIPERS AND ON A CAR THAT IS JUST OVER 2 YEARS OLD WITH ALMOST 2 YEARS ON A FACTORY BUMPER TO BUMPER WARRANTY. I'M SORRY BUT THE CALIPERS TO ME ARE A MECHANICAL DEFECTED PART AND SHOULD BE COVERED UNDER WARRANTY. *TR

I HAD EXTREMELY PREMATURE BACK BRAKE WEAR ON MY 2009 COBALT SS TURBOCHARGED. *TR

TL*THE CONTACT OWNS A 2009 CHEVROLET COBALT SS. THE CONTACT STATED THAT WHILE DRIVING AT HIGHWAY SPEEDS, THE FRONT AND REAR BRAKES PULSATED WHEN THEY WERE DEPRESSED AND THE STEERING WHEEL VIBRATED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THERE WAS NOTHING WRONG. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 16,000.

REAR BRAKES WORE TOO QUICKLY FOR A FRONT WHEEL DRIVE CAR THAT ONLY HAVE 10,000 MILES ON IT. *TR

MY REAR BRAKES ON MY 09 COBALT SS ARE WEARING UNEVENLY. MY RIGHT SIDE REAR BRAKE PADS ARE COMPLETELY USED UP AND AS A RESULT HAVE BEGUN TO GRIND ON TO THE ROTORS AND CAUSED THEM TO FORM PITS, AND OR GROOVES. VERY DISAPPOINTING. *TR

THIS HAS BEEN AN ONGOING PROBLEM FOR OVER A YEAR NOW. I TAKE MY VEHICLE TO THE DEALER AND TELL THEM THE REAR BRAKES ARE LOCKING UP AND THEY RESPOND WITH "THIS IS CAUSED BY DRIVER ABUSE, YOU HAVE BEEN POWERSLIDING IT" I HAVE HAD IT TO THREE DIFFERENT DEALERS. THE REAR BRAKES HAVE BEEN REPLACED 3 TIMES WITHIN 9 MONTHS AND ARE NOW NEEDED AGAIN. CHEVROLET STATES THEY ARE NOT WILLING TO FIX THE PROBLEM. *TR

2009 CHEVY COBALT SS TURBO REAR ROTORS SCORED BADLY DRIVER SIDE, INNER ROTOR SCORED WORSE, 6,700 MILES ON THE VEHICLE PADS SCREECH ALSO AT A STOP. *TR

BOUGHT MY 09 COBALT SS TC SEDAN WITH 3500 MILES ON IT. REAR ROTORS ALREADY HAD GROOVES AT THAT MILEAGE. MY CAR IS AT 8700 MILES NOW WITH BOTH REAR BRAKE CALIPERS HAVING TO BE REPLACED ALONG WITH DEEPER GROOVES IN REAR ROTORS AND SQUEAKING FROM THE REAR BRAKES. THE FAILING REAR BRAKES CAUSED MY EMERGENCY BRAKE TO FAIL. THE EMERGENCY BRAKE FAILED WHILE ON A HILL AND I WALK OUTSIDE TO FIND MY CAR UNDER MY GIRLFRIENDS TRUCK! (E-BRAKE ENGAGED AND IN REVERSE) THIS WAS FIXED WITH THE CALIPERS BEING REPLACED, I STILL NEED TO HAVE MY ROTORS WORKED AS THEY ARE ALREADY TO THIS POINT. I WAS FORTUNATE TO BE PARKED ON A NOT SO STEEP OF A HILL, COULDN'T IMAGINE SOMEONE IN THE SAME SITUATION LIVING IN A HILLY REGION. (LAWSUIT WAITING TO HAPPEN). *TR

PREMATURE REAR BRAKE ROTOR WEAR. *TR

NORMAL DRIVING LEAD UP TO THE EXTREMELY PREMATURE FAILURE OF THE REAR ROTORS AND BRAKE PADS, INCREASING STOPPING DISTANCES WHICH COULD RESULT IN A CRASH. I TOOK MY CAR TO THE CHEVROLET DEALER AND, THOUGH AT ONLY 25,000 MILES, THEY SAID I NEEDED TO *REPLACE*, NOT RESURFACE THE ROTORS. 25K MILES! TO REMEDY THE PROBLEM, I HAD TO FIND AND PURCHASE HIGHER-QUALITY ROTORS AND BRAKE PADS AND HAD TO PAY TO GET THEM INSTALLED. I BELIEVE THIS SURPRISING AND EXTRAORDINARILY EARLY FAILURE--EVEN THOUGH IT MAY FALL UNDER "MAINTENANCE"-- SHOULD BE INVESTIGATED. *TR

I HAVE A 2009 COBALT SS. THE REAR BRAKE ROTORS STARTED SCORING AROUND 5,000 MILES AND AND REAR PADS WERE COMPLETELY WORN AWAY WITH 19,800 MILES. *TR

2009 CHEVROLET COBALT SS, REAR BRAKE DISC HEAVY SCORED , GROOVED,CUPPED ESPECIALLY INSIDE OF DISCS. 13,000 MILES ON CAR AND DEALER SAID TOUGH LUCK NOT COVERED UNDER WARRANTY AND THEY HAVEN'T HEARD ABOUT IT BEFORE. THAT'S A FLAT OUT LIE, I ALSO HAVE AN OFFICIAL COMPLAINT LOGGED WITH GM, THEY CALLED ME BACK WITH A REFERENCE NUMBER AND SAID THEY WOULD LOOK INTO IT BUT HAVE NOT HEARD BACK IN OVER A WEEK NOW. THERE IS A MAJOR SAFETY ISSUE GOING ON HERE AND THEY DO KNOW ABOUT IT. EITHER THE METAL OF DISC IS INCORRECT OR PADS ARE NOT COMPATIBLE OR DEFECTIVE CALIPERS- HYDRAULIC SYSTEM. *TR

REAR BRAKES MAKE SCRATCHING SOUNDS AND THE INSIDE OF BOTH REAR ROTORS HAVE BEEN SCORED DEEPLY THIS WAS NOTICED AT 5000 MILES WHEN I BOUGHT THE CAR AND HAS GOT MUCH WORSE AT 17,000 MILES. ALSO TOOK IT TO MY DEALER AND THE WOULD NOT REPLACE ANYTHING. *TR

INSIDE REAR BRAKE PADS COMPLETELY WORN THROUGH AT AROUND 20,000 MILES. DEALER WOULD NOT COVER BRAKES SO NEW AFTERMARKET PADS WERE PURCHASED AND INSTALLED. *TR

REAR BRAKE ROTORS SCORED HORRIBLY WITH ONLY 10K MILES. *TR

TL*THE CONTACT OWNS A 2009 CHEVROLET COBALT SS. WHILE DRIVING APPROXIMATELY 35 MPH PRESSURE WAS APPLIED TO THE BRAKE PEDAL THE CONTACT HEARD A GRINDING NOISE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE FAILURE WAS DUE TO EXCESSIVE BRAKING. THE DEALER ALSO CONFIRMED THAT THE REAR ROTORS AND BRAKE PADS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 21,000.

I JUST BOUGHT A 2009 COBALT SS THAT ONLY HAS 3289 MILES ON IT AND THE REAR BRAKES ARE ALREADY GOING BAD, AND THE REAR ROTORS ARE GETTING DEEP GOUGES. THIS COULD BE A VERY BAD PROBLEM. WOULD HATE TO SEE THIS TURN INTO ANOTHER TOYOTA THING SPECIALLY WHEN THE SS IS SUCH A GREAT CAR. I THINK A RECALL SHOULD BE DONE AND BETTER ROTORS AND PADS SHOULD BE PUT ON THE SS COBALT. *TR

MY CAR HAS ONLY 11,000 MILES ON IT AND THE REAR ARE BRAKES ARE WARPED, WHICH IN TURN CAUSES MY CAR TO NOT STOP AS FAST IT SHOULD. THE ROTORS ARE ALL WARPED AND THE PADS ARE VERY CHEAP. I CALLED GM AND THEY TOLD ME THAT THE BRAKES ARE COVERED TO 12,000 MILES, BUT ONLY 12 MONTHS. IT'S BEEN 14 MONTHS AND THEY WON'T EVEN HELP ME OUT. THIS PROBLEM OCCURS VERY OFTEN AND I AM AFRAID I AM GOING TO GET INTO AN ACCIDENT. *TR

A TERRIBLE GRINDING COMING FROM REAR BRAKES. THE BRAKES WEAR OUT TOO QUICKLY (AND THE ROTORS ARE BEING SCORED AT 100MILE-20,000MILE CARS) ALSO INSIDE REAR PADS START TO GET NOISY. *TR

PREMATURE REAR BRAKE WEAR. *TR

THE STOCK ROTORS ON MY CAR STARTED GETTING SEVERELY WARPED WITHIN THE FIRST 3-4 MONTHS OF OWNING THE CAR. THE CAR WAS BRAND NEW WHEN I PURCHASES IT. I REPLACED THE BRAKES AFTER OWNING THE CAR FOR 10 MONTHS AND THE CAR HAD ABOUT 14,000 MILES. I SHOWED THE DEALER THE ROTORS AND THEY RESURFACED THEM. I'VE BEEN DRIVING THE CAR WITH NEW BRAKES SINCE JUNE 2010, THE NEW BRAKES ARE ALREADY SQUEAKING AND ROTORS HAVE SEVERE GROOVES ON THEM. I PURCHASED THE CAR JUNE 2009 BRAND NEW. *TR

UNEVEN AND EXCESSIVE WEAR ON THE REAR BRAKE PADS AND ROTORS. WHEN THE DEALERSHIP PULLED THE PADS THERE WHERE CHUNKS OF METAL THAT APPEARED TO BE ROTOR MATERIAL EMBEDDED IN THE PADS. *TR

I BOUGHT A 2009 CHEVY COBALT SS USED WITH 9000 MILES ON IT. FROM THE DAY I BOUGHT IT I CONSISTENTLY HEARD REAR BRAKE NOISE WHENEVER I STOPPED THE CAR. THERE IS EXCESSIVE PAD WEAR ON THE REAR BRAKES AT 11000 MILES NOW. WAY TOO MUCH WEAR THAN NORMAL. DEEP SCORING IN THE ROTORS. TOOK THE CAR TO THE DEALERSHIP I PURCHASED IT FROM AND THEY RESURFACED THE ROTORS BUT THE PROBLEM WAS STILL THERE AFTER I DROVE THE CAR HOME FROM THE SHOP. SO FAR NOTHING HAS BEEN DONE TO CORRECT THIS PROBLEM BY THE DEALERSHIP OF CHEVY. *TR

HAVE 2009 CHEVY COBALT SS AND HAS HAD TO TURN MY REAR ROTORS FOR THE 5TH TIME SINCE I GOT THIS CAR BRAND NEW, AT 36,000 MILES NOW. *TR

MY VEHICLE IS A 2009 CHEVROLET COBALT SS COUPE PURCHASED NEW IN MARCH OF 2009. AFTER 15,000 MILES (ABOUT A YEAR'S WORTH OF DRIVING), THE REAR BRAKE ROTORS WERE PITTED AND SCORED, AND WHEN THE BRAKES WERE APPLIED A METAL-ON-METAL GRINDING NOISE WOULD OCCUR. ALSO, AFTER GETTING WET FROM DRIVING IN THE RAIN, THEN ALLOWING TO VEHICLE TO REST FOR A SHORT PERIOD OF TIME, ENOUGH RUST WOULD BUILD UP ON THE REAR BRAKES THAT A COPIOUS AMOUNT OF THROTTLE WOULD BE NEEDED TO BREAK FREE THE PADS FROM THE ROTORS TO MOVE THE VEHICLE FORWARD. AFTER TAKING THE CAR TO THE SELLING DEALER FOR INSPECTION/REPAIR, I WAS TOLD THIS PART WAS A WEARABLE ITEM AND NOT COVERED UNDER MY MANUFACTURER'S WARRANTY. I EXPLAINED THAT MOST ALL OWNERS OF COBALT SS MODELS BETWEEN THE 2008 - 2010 MODEL YEARS WERE EXPERIENCING SIMILAR REAR BRAKE ISSUES, BUT WAS TOLD THAT DID NOT MATTER. THE PARTS WERE NOT COVERED UNDER WARRANTY, AND IF I WOULD LIKE THEM REPAIRED/REPLACED, I WOULD HAVE TO PAY FOR THE PARTS AND LABOR. *TR

PURCHASED CAR BRAND NEW, HAVE APPROX 10K MILES ON IT. REAR BRAKE CALIPERS SEEM TO NOT RELEASE FULLY- CAN BE HEARD GRINDING WHEN REVERSING AND SCREECHING WHEN GENTLY BRAKING WHILE MOVING FORWARD. REAR BRAKE PADS ARE WEARING UNEVENLY SO THAT THE OUTSIDE PAD IS SCORING THE ROTOR AND WEARING MUCH FASTER THAN THE INSIDE. POSSIBLE THAT THE SLIDER PINS ON THE CALIPER ARE NOT LUBRICATED? I'VE HAD MY LOCAL CHEVY DEALERSHIP WHERE I PURCHASED THE VEHICLE LOOK AT IT, THEY WROTE IT OFF AS BRAKES BEING A "WEAR&TEAR" ITEM. REAR BRAKES ONLY ACCOUNT FOR 20% OR LESS OF THE FULL BRAKING OF THE VEHICLE. WHY IS IT THAT MY FRONT BRAKES ARE FINE AND MY REARS ALMOST NEED TO BE REPLACED ALREADY? *TR

FRONT & REAR ROTORS SCORED SEVERELY WITH DEEP GROOVES THROUGHOUT. THE CAR HAS LESS THAN 12,000 MILES. BRAKING IS SEVERELY HINDERED DURING WET CONDITIONS AND PERIODICALLY THE BRAKES ARE NOISING MAKING "SCREECHING" SOUNDS AS THOUGH METAL TO METAL IS TOUCHING DURING BRAKING. PROBLEM IS MOST LIKELY DUE TO BRAKE PADS BEING FAR TO HARD OF A MATERIAL CAUSING EXCESSIVE WEAR ON THE ROTORS. *TR

HAD TO REPLACE REAR BRAKES ON 2009 COBALT SS AFTER ~ 12000 MILES. ROTORS HAD TO BE REPLACED. MADE VERY NOTICEABLE SCREECHING AND GRINDING SOUNDS. BRAKE PERFORMANCE HAD DECREASED VERY MUCH EVEN BEFORE THEY WERE REPLACED, DECREASE IN PERFORMANCE OF BRAKES AT ABOUT ~7000-8000 MILES. *TR

I PURCHASED A NEW 2009 CHEVROLET COBALT SS SEDAN. THE CAR HAS BARELY BROKEN 10K MILES. THE BRAKES ARE WEARING ABNORMALLY FAST. I AM VERY GENTLE WITH THEM ALWAYS, AND THEY ARE VERY WORN ALREADY. PULLING UP TO STOP SIGNS OR TRAFFIC LIGHTS IS RIDICULOUS. THE SCREECHING FROM THE BRAKES IS LOUD. I HAVE NEVER HAD BRAKES GO OUT THIS EARLY ON ANY OF MY OTHER VEHICLES. *TR

I HAVE A 2009 COBALT SS THAT I BOUGHT NEW AND BEFORE I HAD THE FIRST OIL CHANGE AT 5000 MILES I WAS HAVING BRAKE SQUEALING THE DEALER LOOKED AT IT AND SAID ITS NORMAL IV HAD IT AT 2 DIFFERENT DEALERS SEVERAL TIMES AND NOTHING HAS BEEN DONE, I NOW HAVE 26000 MILE AND NO BACK BRAKES ROTORS ARE BADLY SCORN, SOMETHING HAS TOO BE DONE WITH THIS. *TR

WITH JUST OVER FIVE THOUSAND MILES ON THE CAR THE REAR BRAKE PADS ARE GRINDING. THE OF THE REAR ROTORS HAS DEEP GROOVES. WHEN IT IS WET ITS EXTREMELY HARD TO STOP. I ALMOST HIT THE VEHICLE IN FRONT OF ME WHEN I WAS ON AN EXIT RAMP BECAUSE THE VEHICLE WOULDN'T STOP. *TR

HAD TIRES ROTATED AT DEALER, THEY FOUND REAR BRAKE PADS WORN OUT COMPLETELY AND ROTOR SCORED AFTER ONLY 6000 MILES. HAVE FOUND MANY OTHER OWNERS WITH SAME PROBLEM. DEALER CLAIMS IT WAS CAUSED BY DRIVING WITH THE E BRAKE ON. THEY REFUSED TO REPAIR UNLESS PAID, CLAIMS WARRANTY DOES NOT COVER PADS WEARING OUT UNUSUALLY TOO SOON. *TR

BOUGHT MY 09 COBALT SS WITH LESS THAN 1,000 MILES AND MY REAR BRAKES SQUEAL AND GRIND HORRIBLY WITH ONLY 11,500 MILES. *TR

WHILE DRIVING DOWN THE HIGHWAY, DOING APPROXIMATELY 60 MPH, MY 2009 CHEVROLET COBALT SS SHED IT'S INNER LEFT REAR BRAKE PAD, CAUSING THE BRAKE PEDAL TO SINK TO THE FLOOR, WHEN PRESSED, TO NO AVAIL. LUCKILY, NO ACCIDENT RESULTED. UPON INSPECTION, THE LEFT INNER PAD WAS COMPLETELY GONE, WHILE THE LEFT OUTER, AND BOTH RIGHT REAR PADS WERE WELL WITHIN NORMAL LIMITS. THE GM DEALERSHIP REFUSED TO FIX THIS PROBLEM, STATING THAT IT WAS "NORMAL WEAR AND TEAR". A MECHANIC AT THE DEALER WHISPERED TO ME THAT IT WAS A FAILURE THAT WAS LIKELY CAUSED BY THE CALIPER NOT RETRACTING PROPERLY, AND, WHILE IT SHOULD BE COVERED UNDER WARRANTY, THERE WAS NOTHING HE COULD DO. THIS FAILURE OCCURRED AT ABOUT 12,000 MILES, WHILE THE VEHICLE WAS ONLY 4 MONTHS OLD. THE REAR BRAKE PADS, AS WELL AS, THE LEFT REAR ROTOR HAD TO BE REPLACED. *TR

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. *TR

REAR BRAKES ON 2009 COMPLETELY WORN AFTER ONLY 35,000 KM. *TR

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. *TR

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. *TR

2009 COBALT SS - REAR BRAKES WORN. THE DEALER HAS ORDERED NEW ROTORS BUT NOT PADS. *TR

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] *TR

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.

2009 CHEVY COBALT SS 4DOOR CAR HAS ONLY BEEN PUT UNDER STANDARD DRIVING CONDITIONS CITY/HIGHWAY AND BEFORE 20000 MILES THE REAR BRAKE ROTORS WERE GROVED AND WARPED BEYOND REPAIR AND THE INSIDE REAR BRAKE PAD WAS DOWN TO METAL. THE OUTSIDE PAD STILL HAD OVER 70% LIFE LEFT ON IT BUT WAS GROVING THE ROTOR ALSO. FRONT BRAKES ARE FINE WITH NO ISSUES.