2011 GMC Sierra 1500 Problems

See attached document for complaint

Rear shock holder rusted through cross member on frame making top of shock stay forced against bottom of the bed of the truck.

The door handle broke off on the driver side the passenger side door handle will not open the door the outside handles are loose and the rear back driver and passenger side will not open their doors.

2011 GMC Sierra Frame Failed Pennsylvania State Inspection due to Driver Side Frame Rust/hole. The section of the frame must be replaced due to rust(Improper coating... The truck has only 69700 miles on the odometer.

Vehicle experienced a catastrophic mechanical failure characterized by a percussive "shotgun blast" noise from the rear chassis, followed by an immediate, total loss of braking power (pedal to the floor) and a violent loss of directional stability. This incident represents an aggravated safety failure of known GMT900 platform defects. The technical chain of causality began with the factory exhaust manifold fasteners suffering a metallurgical shear, a universal defect documented under GM Bulletins 19-NA-218, PIP5075, and PIP4701. This shear created a high-velocity, high-heat exhaust leak directed at the brake master cylinder and vacuum assembly. This "heat soak" event compromised the engine-mounted mechanical Brake Vacuum Pump (Recall N192268490 / NHTSA 19V645) and destroyed the internal seals of the Master Cylinder (Special Coverage 15143 / NHTSA 11V599), resulting in total depletion of vacuum assist and hydraulic pressure. Simultaneously, the "shotgun blast" and violent swerve were caused by structural failure consistent with Rear Brake Caliper Bolt Fracture (GM 13247 / NHTSA 13V342) and Rear Axle Shaft/Pin Fracture (GM 14892 / NHTSA 14V819). This mechanical collapse caused the caliper to strike the wheel, resulting in a catastrophic rim blowout and immediate loss of tire pressure. Despite the vehicle having aftermarket long-tube headers installed, the root cause of the heat-related brake failure was the failure of the OEM GM manifold fasteners which snapped off in the cylinder head, as documented in the aforementioned bulletins. Under the Magnuson-Moss Warranty Act, the manufacturer remains liable for these pre-existing safety-critical defects. The vehicle is at Glenn Polk Chevrolet for a 901-series Product Allegation Investigation (Case #90199492). This report is filed to demand federal oversight into these life-threatening defects. The combo of failed fasteners, rim blowout, and compromised braking created a vehicle that was both unable to be steered or stopped

Transmission won’t shift

MY TRUCK HAS PROBLEMS WITH STABILITY CONTROL RUNNING ON THE FREEWAY IN THE DASH CAME STABILITY CONTROL SERVICES AND SECOND REDUCE POWER AND THE STOP MU TRUCK GO SLOW FROM 65 TO 20 IN THE MIDDLE OF THE FREEWAY CAR BEHIND MY TRUCK

TL* THE CONTACT CALLED ON BEHALF OF HER CUSTOMER WHO OWNS A 2011 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING, THE VEHICLE JERKED AND SHUDDERED WHILE DOWNSHIFTING. THE STABILITY TRAC AND TRACTION CONTROL WARNING LIGHTS WERE ILLUMINATED. THE VEHICLE WAS TAKEN TO FIORE TOYOTA (1000 S LOGAN BLVD, HOLLIDAYSBURG, PA 16648) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE THROTTLE BODY SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED BY THE DEALER. THE VEHICLE WAS REPAIRED BY THE CONTACT. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED A CASE NUMBER. THE FAILURE MILEAGE WAS APPROXIMATELY 103,000. *LN*DT*JB CONSUMER STATED WARRANTY IS GOOD UNTIL MAY 2021 OR 120,291 MILES.*JB

ABS Randomly turns on with the traction control light… All windows except for driver window will not go down and sometimes it does not unlock or lock sometimes. It started the beginning of 2022 and has got worst over the years. It is available for inspection. Safety has been and issue because whenever it rains it can lose control on the road haven’t had the money to fix it so don’t really drive it right now.

Odometer Fraud. The contact purchased a 2011 GMC Sierra 1500. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the mileage was 119,000, and at the time of registration, it was discovered that the mileage was 128,000.

When I put the truck in 4wd the dash says service stabilitrak and the traction control light and abs light come on

NEEDS TO BE FIX AND NHTSA STATES THAT THEY CAN NOT FIX IT

Over the past few years squirrels have eaten through the fuel line of the truck just above the fuel tank multiple times. As soon as the ignition switch is turned on fuel gets pumped out very near the exhaust system. The driver may not notice anything wrong immediately causing a very real fire risk. Today is the fourth time I have experienced this issue with this truck.

The fuel pump rusted out from the gas tank causing fuel to leak onto the hot exhaust system. There was a stong gasoline odor which kead to the discovery. The repair bill was $911.00.

Vehicle experienced a catastrophic mechanical failure characterized by a percussive "shotgun blast" noise from the rear chassis, followed by an immediate, total loss of braking power (pedal to the floor) and a violent loss of directional stability. This incident represents an aggravated safety failure of known GMT900 platform defects. The technical chain of causality began with the factory exhaust manifold fasteners suffering a metallurgical shear, a universal defect documented under GM Bulletins 19-NA-218, PIP5075, and PIP4701. This shear created a high-velocity, high-heat exhaust leak directed at the brake master cylinder and vacuum assembly. This "heat soak" event compromised the engine-mounted mechanical Brake Vacuum Pump (Recall N192268490 / NHTSA 19V645) and destroyed the internal seals of the Master Cylinder (Special Coverage 15143 / NHTSA 11V599), resulting in total depletion of vacuum assist and hydraulic pressure. Simultaneously, the "shotgun blast" and violent swerve were caused by structural failure consistent with Rear Brake Caliper Bolt Fracture (GM 13247 / NHTSA 13V342) and Rear Axle Shaft/Pin Fracture (GM 14892 / NHTSA 14V819). This mechanical collapse caused the caliper to strike the wheel, resulting in a catastrophic rim blowout and immediate loss of tire pressure. Despite the vehicle having aftermarket long-tube headers installed, the root cause of the heat-related brake failure was the failure of the OEM GM manifold fasteners which snapped off in the cylinder head, as documented in the aforementioned bulletins. Under the Magnuson-Moss Warranty Act, the manufacturer remains liable for these pre-existing safety-critical defects. The vehicle is at Glenn Polk Chevrolet for a 901-series Product Allegation Investigation (Case #90199492). This report is filed to demand federal oversight into these life-threatening defects. The combo of failed fasteners, rim blowout, and compromised braking created a vehicle that was both unable to be steered or stopped

The power steering failed while operating the vehicle. Unsafe. Local GMC dealership Haggerty in Oak Lawn, IL not able to diagnose problem after fact. My safety and others were at risk. Not confirmed, as techs are not familiar with system. No warnings prior to power steering failure. Be advised, this is a hybrid pickup, and as such, does not have a traditional power steering pump system. Other GM models from the same era have had recalls, but the Silverados and Sierras were somehow omitted. The power steering assist motor has failed. Not the "brains", module.

Rear shock holder rusted through cross member on frame making top of shock stay forced against bottom of the bed of the truck.

Vehicle is 12 years old with 105,000 miles and frame has multiple cracks/ holes. I was told by the dealer that the truck is basically junk.

ABS Randomly turns on with the traction control light… All windows except for driver window will not go down and sometimes it does not unlock or lock sometimes. It started the beginning of 2022 and has got worst over the years. It is available for inspection. Safety has been and issue because whenever it rains it can lose control on the road haven’t had the money to fix it so don’t really drive it right now.

Vehicle experienced a catastrophic mechanical failure characterized by a percussive "shotgun blast" noise from the rear chassis, followed by an immediate, total loss of braking power (pedal to the floor) and a violent loss of directional stability. This incident represents an aggravated safety failure of known GMT900 platform defects. The technical chain of causality began with the factory exhaust manifold fasteners suffering a metallurgical shear, a universal defect documented under GM Bulletins 19-NA-218, PIP5075, and PIP4701. This shear created a high-velocity, high-heat exhaust leak directed at the brake master cylinder and vacuum assembly. This "heat soak" event compromised the engine-mounted mechanical Brake Vacuum Pump (Recall N192268490 / NHTSA 19V645) and destroyed the internal seals of the Master Cylinder (Special Coverage 15143 / NHTSA 11V599), resulting in total depletion of vacuum assist and hydraulic pressure. Simultaneously, the "shotgun blast" and violent swerve were caused by structural failure consistent with Rear Brake Caliper Bolt Fracture (GM 13247 / NHTSA 13V342) and Rear Axle Shaft/Pin Fracture (GM 14892 / NHTSA 14V819). This mechanical collapse caused the caliper to strike the wheel, resulting in a catastrophic rim blowout and immediate loss of tire pressure. Despite the vehicle having aftermarket long-tube headers installed, the root cause of the heat-related brake failure was the failure of the OEM GM manifold fasteners which snapped off in the cylinder head, as documented in the aforementioned bulletins. Under the Magnuson-Moss Warranty Act, the manufacturer remains liable for these pre-existing safety-critical defects. The vehicle is at Glenn Polk Chevrolet for a 901-series Product Allegation Investigation (Case #90199492). This report is filed to demand federal oversight into these life-threatening defects. The combo of failed fasteners, rim blowout, and compromised braking created a vehicle that was both unable to be steered or stopped

THE DAY TIME RUNNING LIGHT ON THE DRIVERS SIDE IS STAYING ON AND WONT SHUT OFF AT ALL AND I HAD MY JOB LOOK AT IT AND IT IS THE JUNCTION BOX. HOWEVER I HAVE HAD MULTIPLE PEOPLE TELL ME THEY HAVE HAD THIS ISSUES

WHEN I TURN THE TRUCK OFF THE DIM HEADLAMPS STAY ON WITH THE KEYS OUT. THE ONLY WAY TO MAKE THEM GO OFF IS TO PULL THE BATTERY

ON NOVEMBER 29, 2018 AT AROUND 12:00PM, I WAS DRIVING DOWN THE ROAD ON ROUTE 460 WEST TOWARD GRUNDY, VIRGINIA, THE ROADS WAS CLEAR, AND THE WEATHER WAS CLEAR, AT A SPEED ABOUT 35MPH AND THE CEILING AIRBAGS DEPLOYED CAUSING THE SEATBELTS TO LOCK UP, AND SHUT THE TRUCK DOWN TO A STOP IN THE MIDDLE OF THE ROAD. THE AIR BAGS MADE A LOUD NOISE, THAT A NEIGHBORING BUSINESS HEARD THEM DEPLOY. I WAS NOT INJURED ONLY SCARED AND STARTLED BY WHAT HAD JUST HAPPENED. I RESTARTED MY TRUCK AND PULLED OFF TO THE SIDE OF THE ROAD, AND COULD NOT UNDERSTAND WHAT HAD HAPPENED, AND PROCEDED TO DRIVE TO MY MOTHER IN LAW'S WORK PLACE. I THEN CALLED MY MOM WHICH WAS THE ORIGINAL OWNER AND SHE ADVISED ME TO CALL RAMEY CHEVROLET RICHLANDS VA BECAUSE THE AIR BAGS SHOULD NOT HAVE DEPLOYED. I HAD TO RESHEDULE AN APPOINTMENT BECAUSE OF BAD WEATHER AND BEING ABLE TO GET OFF WORK TO TAKE IT TO THEM FOR THEIR SCHEDULE UNTIL JANUARY 18, 2019. MY TRUCK WAS OWNED BY MY MOM AND DAD AND HAS NEVER BEEN IN A CRASH. WE HAVE CURRENTLY AROUND 58,000 MILES ON THIS TRUCK AND AS YOU CAN TELL VERY LOW MILAGE. MY WIFE MOSTLY DRIVES THIS TRUCK. BOTH ME AND MY WIFE HAVE ALWAYS PRACTICE SAFE DRIVING AND OBEYED SPEED LIMIT. THE TRUCK IS CURRENTLY AT RAMEY CHEVROLET RICHLANDS VA AND I TALK TO AN INSPECTOR FROM CHEVROLET BY THE NAME OF TONY AT 1-866-446-6963 EXT. 59115544 AND HE TOLD ME THEY WOULD NOT FIX MY TRUCK BECAUSE THE SHOCKS WAS DAMAGED. NOW IF THE SHOCKS ARE DAMAGED THEN WHEN THE TRUCK WAS SHUT DOWN BY THE AIRBAGS MAY HAVE DAMAGED THE SHOCKS, BUT THIS TRUCK WAS NOT IN A CRASH, THERE WAS NO REASON FOR THE AIRBAGS TO DEPLOY JUST DRIVING AT A SPEED OF AROUND 35MPH. I AM THANKFUL I WAS NOT INJURED. I HOPE WE CAN WORK TO GET THIS RESLOVED.

ON NOVEMBER 29, 2018 AT AROUND 12:00PM, I WAS DRIVING DOWN THE ROAD ON ROUTE 460 WEST TOWARD GRUNDY, VIRGINIA, THE ROADS WAS CLEAR, AND THE WEATHER WAS CLEAR, AT A SPEED ABOUT 35MPH AND THE CEILING AIRBAGS DEPLOYED CAUSING THE SEATBELTS TO LOCK UP, AND SHUT THE TRUCK DOWN TO A STOP IN THE MIDDLE OF THE ROAD. THE AIR BAGS MADE A LOUD NOISE, THAT A NEIGHBORING BUSINESS HEARD THEM DEPLOY. I WAS NOT INJURED ONLY SCARED AND STARTLED BY WHAT HAD JUST HAPPENED. I RESTARTED MY TRUCK AND PULLED OFF TO THE SIDE OF THE ROAD, AND COULD NOT UNDERSTAND WHAT HAD HAPPENED, AND PROCEDED TO DRIVE TO MY MOTHER IN LAW'S WORK PLACE. I THEN CALLED MY MOM WHICH WAS THE ORIGINAL OWNER AND SHE ADVISED ME TO CALL RAMEY CHEVROLET RICHLANDS VA BECAUSE THE AIR BAGS SHOULD NOT HAVE DEPLOYED. I HAD TO RESHEDULE AN APPOINTMENT BECAUSE OF BAD WEATHER AND BEING ABLE TO GET OFF WORK TO TAKE IT TO THEM FOR THEIR SCHEDULE UNTIL JANUARY 18, 2019. MY TRUCK WAS OWNED BY MY MOM AND DAD AND HAS NEVER BEEN IN A CRASH. WE HAVE CURRENTLY AROUND 58,000 MILES ON THIS TRUCK AND AS YOU CAN TELL VERY LOW MILAGE. MY WIFE MOSTLY DRIVES THIS TRUCK. BOTH ME AND MY WIFE HAVE ALWAYS PRACTICE SAFE DRIVING AND OBEYED SPEED LIMIT. THE TRUCK IS CURRENTLY AT RAMEY CHEVROLET RICHLANDS VA AND I TALK TO AN INSPECTOR FROM CHEVROLET BY THE NAME OF TONY AT 1-866-446-6963 EXT. 59115544 AND HE TOLD ME THEY WOULD NOT FIX MY TRUCK BECAUSE THE SHOCKS WAS DAMAGED. NOW IF THE SHOCKS ARE DAMAGED THEN WHEN THE TRUCK WAS SHUT DOWN BY THE AIRBAGS MAY HAVE DAMAGED THE SHOCKS, BUT THIS TRUCK WAS NOT IN A CRASH, THERE WAS NO REASON FOR THE AIRBAGS TO DEPLOY JUST DRIVING AT A SPEED OF AROUND 35MPH. I AM THANKFUL I WAS NOT INJURED. I HOPE WE CAN WORK TO GET THIS RESLOVED.

The contact owns a 2011 GMC Sierra 1500 equipped with Goodyear Tires, Tire Line: Wrangler 12th Grade Pro, Tire Size: 265/70/R17, DOT Number: PJAH35HV3518. The contact stated while her friend was driving approximately 40-45 MPH with her seated in the passenger’s side seat, the passenger's side front tire experienced tread separation. The passenger's side curtain airbags, the driver's side curtain airbags, and the airbag located at the edge of the driver's seat deployed. The emergency fuel shut-off valve failed to engage. There were no warning lights illuminated. The contact sustained injuries on her right arm, and her friend sustained injuries to the face. Medical assistance was not needed. The driver veered to the side of the roadway. The driver was able to drive the vehicle to the nearby hotel as the tire was not totally deflated. The contact stated that only the outer layer of the tire had separated. Upon attempting to use both the front driver's seat belt and the front passenger's seat belt the next morning, the contact noticed that they had seized and would not retract nor extend. The vehicle was not diagnosed or repaired. The dealer and manufacturer were not notified of the failure. The tire dealer and manufacturer were not notified of the failure. The tire was replaced with a spare tire. The tire was a replacement tire. The vehicle failure mileage was approximately 302,984. The tire failure mileage was approximately 15,000.

TL* THE CONTACT OWNS A 2011 GMC SIERRA 1500 EQUIPPED WITH BF GOODRICH ALL TERRAIN T/A KO2 TIRES, SIZE: 265/70/R17. WHILE DRIVING 70 MPH, THE REAR DRIVER'S SIDE TIRE BLEW OUT WITHOUT WARNING. THERE WERE DAMAGES TO THE REAR DRIVER'S SIDE CORNER PANEL. THE VEHICLE WAS TAKEN TO DISCOUNT TIRE (20690 US-281, SAN ANTONIO, TX 78258, (210) 499-4730) WHERE IT WAS DIAGNOSED THAT THE FAILURE WAS DUE TO WEAR AND TEAR FROM STRIKING A CURB. THE TIRE WAS REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND AN INSPECTOR CONFIRMED THAT THE DAMAGE WAS DUE TO WEAR AND TEAR FROM STRIKING A CURB. THE APPROXIMATE VEHICLE FAILURE MILEAGE WAS 177,208 AND THE TIRE FAILURE MILEAGE WAS UNKNOWN.

TL* THE CONTACT OWNS A 2011 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE UTILIZING THE FOUR-WHEEL DRIVE MODE, HE ATTEMPTED A LEFT TURN, BUT THE VEHICLE WOULD NOT GO FORWARD, UNTIL HE TURNED THE STEERING WHEEL BACK TO THE RIGHT. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR INSPECTION OR REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 4,500. UPDATED 11/23/12 *CN

TL* THE CONTACT OWNS A 2011 GMC SIERRA 1500. THE CONTACT WAS DRIVING UP AN INCLINE APPROXIMATELY 5 MPH AND PLOWING SNOW IN A RESIDENTIAL DRIVEWAY. WHEN THE CONTACT SHIFTED INTO REVERSE, THE VEHICLE BEGAN TO ROLL FORWARD AND THE ENGINE STALLED. THE VEHICLE CAME TO A STOP AFTER THE CONTACT APPLIED THE BRAKES REPEATEDLY. THE CONTACT STATED THAT THE FAILURE WOULD ALSO OCCUR WHEN DRIVING FORWARD ON AN INCLINE. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE TECHNICIAN PERFORMED A ROAD TEST AND INFORMED THE CONTACT THAT THE VEHICLE WAS OPERATING AS DESIGNED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 800.

The contact owned a 2011 GMC Sierra 1500. The contact stated that while the vehicle was parked at the residence overnight, the vehicle caught on fire. The fire spread to his other vehicle, a 2000 Chevrolet Blazer, and that vehicle was also destroyed. The fire department was able to extinguish the fire. A fire department report was filed. The contact was informed that the cause of the fire ignition was unintentional. Both vehicles remained at the contact's residence and were deemed totaled by the insurance company. The dealer was made aware of the failure and informed the contact that the vehicle was included in NHTSA Campaign Number: 21V054000 (Air Bags) however, the cause of the fire was not related to the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 201,000.

SPARE TIRE WILL NOT LOWER AS DESCRIBED IN THE OWNER'S MANUAL, DEALERS ARE UNABLE TO CORRECT THE PROBLEM, WHICH COULD LEAD TO BEING STRANDED ON THE ROAD IN ADVERSE WEATHER.

TL* THE CONTACT OWNS A 2011 GMC SIERRA 1500. WHILE THE VEHICLE WAS PARKED WITH THE HEAT ACTIVATED, THE REAR WINDSHIELD EXPLODED AFTER TEN MINUTES. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC AND THE REAR WINDSHIELD WAS REPLACED. THE DIAGNOSIS WAS UNKNOWN. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE DEALER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 170,000.

REAR VIEW MIRROR JUST FALLS OFF AND TAKES A CHUNK OF WINDSHIELD WITH IT. COULD VERY EASY STARTLED SOME ONE AND CAUSE ACCIDENT

DIFFERENTIAL MAKES CRACKING NOISE, LUM BAR ON DRIVERS SEAT DOESN'T INFLATE,

SEAT COLLAPSED BACKWARD AFTER REAR END COLLISION.