2012 Gmc SIERRA 1500 problems and owner complaints

TL* THE CONTACT OWNS A 2012 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 50 MPH, THE VEHICLE HESITATED. THE CONTACT DROVE THE VEHICLE TO THE DEALER THINKING THAT IT NEEDED A TUNE UP. THE DEALER DIAGNOSED THAT THE CAMSHAFT AND UPLIFTERS NEEDED REPLACEMENT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 140,000. .....UPDATED 08/11/16 *BF THE CONSUMER ALSO STATED THERE WAS AN ISSUE WITH TRANSMISSION. UPDATED 08/17/16 *JB

Owner-reported narrative. 140,000 miles reported. Look up ODI 10875937 at NHTSA ↗

WHEN VEHICLE STARTS MOVING FOREWARD FROM A DEAD STOP AND WHEN AUTOMATIC TRANSMISSION SHIFTS FROM 1ST GEAR TO SECOND GEAR THERE IS A HARD CLUNK.THIS HAS BEEN HAPPENING SINCE 15000 MILES.WHEN I BRING TO DEALER ,THEY WANT TO KEEP TRUCK ,LEAVING ME WITHOUT VEHICLE.WIFE AND I WERE ON MAJOR HWY AND HAD TO SHUT VEHICLE DOWN IN TRAFFIC TO STOP THE CLUNK.VERY DANGEROUS SITUATION.

Owner-reported narrative. 44,000 miles reported. Look up ODI 11089187 at NHTSA ↗

DASHBOARD HAS TWO CRACKS. EACH CRACK IS ABOUT 2 INCHES LONG. ONE OF THEM IS ON THE LEFT SIDE, ABOUT 12 INCHES FROM THE STEERING WHEEL. THE OTHER CRACK IS ON THE TOP-LEFT CORNER OUTSIDE OF THE AIRBAG AREA. THE CRACKS HAVE BEEN GETTING BIGGER IN THE LAST FEW WEEKS. IT APPEARS THAT IF AN AIRBAG WERE TO DEPLOY, THE SHARP END OF THE CRACKED DASHBOARD COULD CAUSE SIGNIFICANT INJURY RATHER THAN PROTECTION. NORMAL DRIVING CONDITIONS CAUSED IT. NO KNOWN OBJECTS HAVE BEEN PLACED ON DASHBOARD TO EXERT SUCH FORCE TO CAUSE IT TO BREAK.

Owner-reported narrative. Look up ODI 10956809 at NHTSA ↗

$17,000 WORTH OF DAMAGE ON MY GMC ALL AIRBAGS WENT OFF MINUS THE DRIVER SIDE STEERING WHEEL AIRBAG. WAS ON CRUISE CONTROL AT 75 MILES PER HOUR FELL ASLEEP AT WHEEL RAN INTO THE BARRIER WIRES. DAMAGE ALL OVER THE TRUCK 360UNDERNEATH THE TRUCK LUCKILY NOBODY WAS INJURED EXCEPT FOR MY OWN BODY. I LOST CONSCIOUSNESS THE ONSTAR WOKE ME UP AND I CRAWLED OUT OF THE WRECKAGE MEETING THE HIGHWAY PATROL. IT'S BEEN JUST OVER FOUR YEARS I'M STILL FEELING THE EFFECTS OF THE INJURY.

Owner-reported narrative. 1,600 miles reported. Look up ODI 10966134 at NHTSA ↗

ON COLD MORNING STARTS, FRONT BRAKE PADS WILL ENGAGE ROTOR, AND RELEASE VERY SLOWLY. THEN ON A TURN, FRONT PADS WILL ENGAGE, LOCK FOR A SHORT TIME, AND THEN SLOWLY RELEASE. SEEMS LIKE ENGINE HAS TO WARM UP BEFORE BRAKES ACT NORMAL. AFTER COLD MORNING STARTUP, BEFORE MOVING VEHICLE, IF BRAKE PEDAL IS PUMPED REPEATEDLY FOR 30 SECONDS, BRAKES WILL TRY TO ACT NORMAL, WHEN VEHICLE IS MOVED. I AM ON MY 2ND SET OF FRONT PADS AND ROTORS. 1ST SET WERE SEVERALLY WORN. TECH SAID IT LOOKS LIKE YOUR CALIPERS WERE STICKING.

Owner-reported narrative. 47,000 miles reported. Look up ODI 11056267 at NHTSA ↗

TL* THE CONTACT OWNS A 2012 GMC SIERRA 1500. THE CONTACT STATED THAT THE BRAKES FUNCTIONED INDEPENDENTLY EVEN WHEN THE ACCELERATOR PEDAL WAS APPLIED. ALSO, THE TRACTION CONTROL WARNING INDICATOR ILLUMINATED. THE FAILURE OCCURRED APPROXIMATELY FIVE TIMES. THE VEHICLE WAS TAKEN TO BILL MARSH AUTOMOTIVE GROUP (1621 S GARFIELD AVE, TRAVERSE CITY, MI) WHERE IT WAS DIAGNOSED THAT THE STEERING WHEEL POSITIONING SENSOR FAILED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 55,000.

Owner-reported narrative. 55,000 miles reported. Look up ODI 11080422 at NHTSA ↗

WHILE DRIVING TO WORK ONE MORNING AN ERROR MESSAGE FLASHED ENGINE REDUCED POWER, STABILITY CONTROL LOSS. TRUCK STRUGGLED TO ACCELERATE. HAS HAPPENED SEVERAL TIMES SINCE NOVEMBER 2015 ON CITY STREETS OR HIGHWAYS CAN HAPPEN AT ANY TIME. I HAD TO REPLACE ENTIRE SYSTEM FROM THROTTLE BODY TO THE PEDAL ASSEMBLY HAVE FOUND OUT THAT THIS IS COMMON PROBLEM THAT GM KNOWS ABOUT ALONG WITH THE CRACKS IN THE DASH AROUND AIR BAG ON PASSENGER SIDE AND THE INSTRUMENT CLUSTER AND REFUSES TO RECALL AND FIX CRACKS IN AIR BAG HOUSING COULD POSE A SAFETY HAZARD ALO…

Owner-reported narrative. 132,689 miles reported. Look up ODI 11072255 at NHTSA ↗

The contact owns a 2012 GMC Sierra 1500. The contact stated that while driving at 70-75 MPH, the vehicle inadvertently lost electrical power for 30 seconds. The traction warning light and other unknown warning lights were illuminated. The contact stated that the failure had been recurring while driving. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 60,000.

Owner-reported narrative. 60,000 miles reported. Look up ODI 11444442 at NHTSA ↗

I HAVE BEEN SMELLING A STRONG ODOR OF GAS COMING THRU MY AIR VENTS WHILE MY VEHICLE IS RUNNING, PARTICULARLY WHILE I AM IDLING AND JUST AFTER ACCELERATION. MY MECHANIC STATED HE HAS REPAIRED SEVERAL OF THESE ISSUES ON OTHER GMC'S. THE PROBLEM IS THE TOP OF THE FUEL TANK IS RUSTED WHERE THE FUEL PUMP IS LOCATED AND GAS SPRAYS UPWARDS ONTO THE BOTTOM SIDE OF THE BED AND IS VERY COSTLY AND DIFFICULT TO REPAIR. I'M SURE GM IS AWARE OF THE PROBLEM, HOWEVER, THEY HAVE CHOSEN TO IGNORE THE ISSUE. THIS IS MOST DEFINITELY A SAFETY ISSUE!

Owner-reported narrative. 100,000 miles reported. Look up ODI 11121740 at NHTSA ↗

Frame rot behind gas tank truck doesn't even have 90000 Miles on it unsave to drive poor frame quality

Owner-reported narrative. Look up ODI 11576679 at NHTSA ↗

TRANSMISSION SURGES WHEN GAS PEDAL IS PUSHED HARD AS IN TRYING TO ENGAGE KICKDOWN OR "PASSING GEAR". SPEED IS NOT A FACTOR, IT HAPPENS AT LOW SPEED AND HIGHER SPEEDS. DEPENDING ON SPEED, TRUCK JERKS SUDDENLY AND ALMOST STALLS OUT. SOMETIMES REAR TIRES CHIRP.SEEMS SIMILAR TO THE 8 SPEED TRANSMISSION PROBLEMS LATER YEARS HAVE EXPERIENCED.

Owner-reported narrative. 40,000 miles reported. Look up ODI 11349066 at NHTSA ↗