2017 GMC Sierra

The contact owns a 2017 GMC Sierra. The contact stated that while his wife was driving at an undisclosed speed with the defroster activated, a smoke odor was detected inside the vehicle. The contact's wife checked the rearview mirror and saw flames coming from the rear windshield. The contact's wife pulled over and heard a loud explosion from the rear windshield shattering before turning off the vehicle. The flames from the rear windshield were extinguished on their own after the vehicle was turned off. There were no injuries sustained. The vehicle was restarted, and the contact's wife deactivated the defroster before driving to work. The vehicle was taken to the dealer, where it was determined that the rear windshield needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 97,000.

The contact owns a 2017 GMC Sierra. The contact stated while driving at various speeds, the transmission inadvertently shifted from high to low gears and the RPMs revved up. There was no warning light illuminated. The vehicle was taken to the dealer where the failure could not be duplicated. However, the failure recurred while driving. The vehicle was then taken back to the dealer where it was diagnosed that the valve body, the clutch, the piston, and the transmission plates needed to be replaced. The vehicle was repaired, however, the failure persisted. The contact stated that while driving and an undisclosed speed, the transmission was shifting hard into a lower gear, then into third gear without warning. The vehicle was taken back to the dealer but was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

The contact owns a 2017 GMC Sierra LD. The contact stated that on two separate occasions while driving at approximately 50 MPH, the front passenger side wheel locked inadvertently. As a result, another vehicle crashed into the attached trailer which caused the trailer to jackknife. The driver alert warning light illuminated. The air bags failed to deploy. No medical attention was required. No injuries were sustained. A police report was filed. The vehicle was not diagnosed or repaired. The contact then stated that on a separate occasion while driving at normal speed, the front passenger side wheel inadvertently locked without warning. As a result, the strut detached from the control arm which caused the attached trailer to detach and crashed into the vehicle that caused the vehicle to crash into a ditch. the rear passenger side air bags deployed however, the front driver and passenger side air bags failed to deploy. No injuries were sustained. No medical attention was required. A police report was filed. The vehicle was towed to the contact’s residence and then towed to a collision center. The vehicle was not diagnosed or repaired. The contact referenced an unknown NHTSA recall related to the Service Brakes, Hydraulic as a possible cause. The manufacturer was not notified of the failure. The failure mileage was approximately 51,117.

The contact owns a 2017 GMC Sierra equipped with Goodyear, Tire Line: Wrangler SRA, Tire Size: 275/55/R30, DOT Number not available: The contact stated while driving 25 MPH, the passenger’s side front tires experienced blowout. The contact was able to pull over safely and replace the tire. The failure reoccurred and the front driver side tire blowout causing the contact to sideswipe another vehicle and crashing into a building. The airbags deployed but no injury and a police report were filed. Neither the dealer nor the manufacturer had been notified of the failure. The failure mileage was approximately 50,000.

AFTER PARKING AND BACKING UP WHEN I HIT THE BRAKES, THEY GOT HARD AND DID NOT OPERATE PROPERLY. WHEN PULLING FORWARD THE BRAKES WERE HARD TO OPERATE AND BARELY STOPPED THE VEHICLE. AFTER SITTING A WHILE AND RESTARTING THE TRUCK THEY OPERATED AS THEY SHOULD HAVE. NOT SURE IF THIS IS AN OPERABLE SAFETY ISSUE BUT, IT WAS VERY CONCERNING THAT THE BRAKES DID NOT OPERATE PROPERLY.

COOLANT LIGHT CONTINUES TO COME ON. I'VE HAD IT TO THE SHOP AND THEY SAY THAT IT IS A MANUFACTURING PROBLEM. HOWEVER THEY ARE NOT WILLING TO FIX IT. I HAVE THE SAME PROBLEM ON MY CHEVY HIGH COUNTRY THAT HAS THE SAME 6.6 DIESEL ENGINE IN IT. THE MECHANICS ALL ACKNOWLEDGE THAT THIS IS A PROBLEM FOR ALL OF THESE MODEL 6.6 DIESEL REGARDLESS OF WHETHER IT IS GMC OR CHEVY. THIS SHOULD DEFINITELY BE A RECALL. THE WARNING LIGHT CONTINUALLY COMES UP ON THE DISPLAY SAYING I AM LOW ON FLUID. HOWEVER, WHEN I CHECK IT IT IS ALWAYS FULL. THERE IS A HIGH CHANCE THAT IF IT IS LOW I WILL AUTOMATICALLY RESET IT THINKING THAT THE WARNING LIGHT IS NOT FUNCTIONING CORRECTLY. AGAIN, THE GM TEXT KNOWS THAT THIS IS A PROBLEM THROUGHOUT THE FLEET. AGAIN, THIS SHOULD BE A RECALL. IF YOU HAVE FURTHER QUESTIONS YOU CAN REACH ME AT [XXX] THANK YOU FOR YOUR TIME, [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

I LIVE IN OREGON, MY TRUCK THAT I PURCHASED FROM A PRIVATE OWNER FROM UTAH IN JUNE OF 2019 HAD 37,300 MILES TODAY'S DATE MARCH 1 2020 MY TRUCK HAS 39,100 MILES. A COUPLE OF DAYS AGO I CHANGED TO MY OREGON LICENSE PLATE. WHILE UNDER THE TRUCK I NOTICED A LOT OF RUST ON MANY PARTS OF THE BRAKES, SUSPENSION AND FRAME ESPECIALLY WHEN I LOWERED THE SPARE TIRE WHICH SHOWED SEVERE RUST DAMAGE. THIS TRUCK HAS AN EXTREME AMOUNT OF RUST FOR A VEHICLE BUILT IN 2017. I CONSIDER THIS TO BE A SAFETY HAZARD ESPECIALLY BECAUSE DRIVERS USE THIS TYPE OF TRUCK TO HAUL OR TOW HEAVY LOADS.

TRUCK WAS RECALLED FOR BRAKES. RECALL COMPLETED WAS COMPUTER ISSUE. THAT RECALL CAUSED BRAKE VACUUM TO MALFUNCTION. ALMOST COST ME MY LIFE. 70 MPH IN DALLAS TX TRAFFIC. HAD TO SLOW DOWN QUICKLY. ONCE IT SLOWED DOWN THEN IT WOULDN'T STOP!!! GOT IT TO A PARKING GARAGE ALMOST HIT 3 VEHS. IT WAS TRAUMATIC. GM KNOWS ABOUT THIS ISSUE. MANY OTHERS HAVE REPORTED. NOT HAPPY!!!!! GM EXTENDED THE BRAKE WARRANTY TO 150000 MILES. THAT MAKES ME FEEL BETTER. THEY PUT SAME PART BACK ON. SO I GUESS IT WILL HAPPEN AGAIN. I'M VERY LEARY OF MY TRUCK.

MY 2017 GMC SIERRA DENALI HAD ALREADY BEEN THE SUBJECT OF THE RECALL RELATING TO THE BRAKE ISSUE. SHORTLY AFTER THEY PERFORMED THIS RECALL WORK THE BRAKES BEGAN FAILING AT LOW SPEED. WHEN DRIVING BELOW 5 MPH, THE PEDAL WHICH SUDDENLY FALL AND THE ABS WOULD TRIGGER. DURING THIS TIME, THE CAR WOULD CONTINUE MOVING WITH THE ABS FULLY VIBRATING. THANKFULLY, MY TRAILER HITCH ABSORB THE REAR IMPACT AGAINST A WALL. THE PROBLEM CONTINUED. I THEN TOOK THE TRUCK IN FOR SERVICE AND THEY REPORTED THAT THERE HAS BEEN A SIGNIFICANT FAILURE RATE OF THE VACUUM ASSIST. THE DEALER REPLACE THE VACUUM PUMP AND VACUUM LINES. I'M EXTREMELY CONCERNED THAT THIS WOULD HAPPEN TO SOMEONE ELSE NEAR AN INTERSECTION, NOT JUST SLOWLY BACKING INTO PARKING SPACES. I HAVE CONTACTED GMC BY EMAIL BUT STILL HAVE RECEIVED NO RESPONSE OR ACKNOWLEDGMENT OF MY COMMUNICATIONS.

BRAKE VACUUM PUMP FAILURE. VEHICLE BRAKE PEDAL BECOMES VERY HARD TO DEPRESS AT SLOW SPEED AND VERY HARD TO STOP. USUALLY HAPPENS WHEN IN SLOW TRAFFIC AND AFTER THE PEDAL IS DEPRESS MORE THAN 2-3 TIMES IN A ROW.

IN MY DRIVEWAY ON DRY PAVEMENT AT SLOW SPEEDS WHEN PRESSING THE BRAKE PEDAL THE VEHICLE DOES NOT STOP SATISFACTORY. THE BRAKE PEDAL WAS THEN PRESSED UNTIL IT WAS VERY HARD THE VEHICLE CONTINUED TO MOVE BUT SLOWLY BEGAN TO STOP. WHEN PRESSING THE BRAKE PEDAL TO THE MAXIMUM AND A FIRM PEDAL A NOISE COULD BE HEARD FROM UNDER THE HOOD. THE NOISE SOUNDED LIKE A MOAN, SIMILAR TO THE BRAKE ANTI SKID SYSTEM BEING ACTIVATED. I WAS ABLE TO SIMULATE THIS BRAKING PROBLEM MULTIPLE TIMES WHILE BACKING UP AND MOVING FORWARD AT SLOW SPEEDS. CYCLING THE IGNITION ON AND OFF DID NOT CORRECT THE PROBLEM.

REFERENCE THE COMPLAINT NUMBER 11306627. THE VEHICLE HAD THE BRAKE RECALL NOTICE N192268490 COMPLIED WITH AT THE DEALER IN NOVEMBER 2019. THE VEHICLE THEN EXPERIENCED A BRAKE FAILURE IN FEBRUARY 2020. PLEASE ADD THIS INFORMATION TO MY ORIGINAL COMPLAINT.

MY BRAKES ARE NOT WORKING TO ITS FULL POTENTIAL. I BELIEVE MY VACUUM PUMP IS GOING BACK ON MY TRUCK. I NOTICED LAST WEEK THAT I WAS DRIVING OUT OF A PARKING LOT AND COMING TO A STOP SIGN AND I PRESSED MY BRAKES AND IT WAS NOT WORKING PROPERLY. I HAD TO RELEASE THE BRAKE AND SLAM ON THE BRAKES AGAIN ALMOST CAUSING A ACCIDENT WITH INCOMING TRAFFIC. I CALLED ALL MY LOCAL DEALERSHIPS AND STATED THAT THERE WAS NO RECALL ON THIS JUST YET FOR MY TRUCK, BUT THERE IS A RECALL ON THE VACUUM PUMP. THEY STATED THEY ALREADY DID THE SOFTWARE UPDATE TO MY TRUCK BACK IN SEPTEMBER 2019. MY TRUCK WAS GOING MAYBE 10 MPH TO A STOP SIGN AND I APPLIED MY BRAKES ONCE AND WAS NOT COMPLETELY STOPPING, SO I TOOK MY FOOT OFF THE BRAKE PEDAL, AND IT GOT WORSE AND I HAD THE BRAKES PRESSED ALL THE WAY DOWN TO THE FLOOR. THIS IS NOT SAFE! THIS IS MY DAILY DRIVER AND I DROP MY KIDS OFF TO SCHOOL EVERY DAY AND ITS NOT A GOOD FEELING KNOWING MY BRAKES CAN GO OUT AT ANY TIME!

NOTICED MUSHY, VIBRATING BRAKES. TOOK IT TO TIRE STORE AND WAS ADVISED THE BRAKE BOOSTER AND VACUUM PUMP ARE BAD. I'VE HAD SEVERAL CLOSE CALLS IN PARKING LOTS, AS THE VEHICLE IS SLOW TO RESOND TO THE APPLICATION OF THE BRAKES. THE DRIVERS SEAT IS ALSO LOOSE. IT MOVES FROM SIDE TO SIDE AS I GO AROUND CORNERS. I'M AFRAID IT WILL COME OFF THE RAILS OR WORSE YET, NOT SECURE ME IN THE EVENT OF AN ACCIDENT.

WHEN I'M DRIVING AT A SLOW SPEED TURNING THE TRUCK LOOSES ALL POWER AND THE STEERING WHEEL JERKS OUT OF MY HAND, STABILITRAK IS ON THE DISPLAY AND IT SAYS ROLL DOWN DRIVER WINDOW AND ROLL BACK UP! IT ALSO LOOSES ALL POWER JUST DRIVING DOWN THE ROAD NO MATTER THE SPEED! I HAVE ALSO BEEN STOPPED AT A STOPLIGHT AND IT LOST ALL POWER WOULDN'T COME BACK ON SO I HAD TO GET OUT POP THE HOOD AND BANG I. THE BATTERY BOX AND CABLES AND IT STARTED AGAIN! VERY SCARY GOING 75 MPH AND IT SHUTS OFF LEAVING YOU NO STEERING NO BRAKES NO LIGHTS NO NOTHING! SOMETIMES IT SAYS POWER STEERING FAILURE SOMETIMES AND SOMETIMES IT SAYS STABILITRACK PROBLEM AT SOMETHING ABOUT TOWING! THE BRAKES WERE ALSO AFFECTED NO BRAKES

TL* THE CONTACT OWNS A 2017 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING AT 70 MPH THEIR WAS SUDDEN LOSS OF MOTIVE POWER AND THE GEARS DISENGAGED. THE CONTACT STATED THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT PULLED THE VEHICLE TO THE SIDE OF THE ROAD AND RESTARTED VEHICLE AND THE CHECK ENGINE WARNING LIGHT DISAPPEARED. THE VEHICLE WAS TOWED TO (DUBLIN CHEVROLET GMC BUICK, 2042 VETERANS BLVD, DUBLIN, GA 31021 (478-246-4916) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION SHOWED EVIDENCE OF LARGE AMOUNTS OF METAL SHAVINGS FROM THE TORQUE CONVERTER. THE OIL PAN ALSO SHOWED EVIDENCE BURNT METAL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A CASE WAS OPENED. THE FAILURE MILEAGE WAS 61,719.

THERE IS A SHUTTERING IN THE TRANSMISSION AS THE VEHICLE ATTEMPTS TO CLIMB SLIGHT/STEEP GRADES AT SLOW TO MEDIUM SPEEDS. AROUND 1500 RPM THE VIBRATION IS SENT THROUGHOUT THE WHOLE VEHICLE. HAVING TO INCREASE ACCELERATION TO ALLOW THE TRUCK TO SHIFT PROPERLY TO OVERCOME THE LACK OF POWER HAS CREATED A DANGEROUS SITUATION WHILE NAVIGATING UP SNOWY/ICE HILLS. THE VEHICLE ALSO PERFORMS A LURCHING OR SUDDEN SPEEDING UP WHEN DOWNSHIFTING WHEN SLOWING TO COME TO A STOP. DEPENDING ON ROAD CONDITIONS THIS CREATES A DANGEROUS SITUATION WHEN APPROACHING ICY/SLIPPERY INTERSECTIONS.

VEHICLE FREQUENTLY EXHIBITS LOSS OF BRAKING POWER. WHEN THIS OCCURS, SOMETHING SOUNDING LIKE THE ABS SYSTEMS IS SOMETIMES ENGAGED BY THE VEHICLE AND OTHER TIMES NOT. WHILE GM CLAIMS BRAKING PERFORMANCE MEETS FEDERAL STANDARDS, THE BRAKING POWER IS GREATLY REDUCED WHEN THE HYDRAULIC SYSTEM IS ENGAGED AND ALMOST NON-EXISTENT WHEN NEITHER VACUUM PUMP NOR THE HYDRAULIC SYSTEM FUNCTIONS. EVEN IF THE BRAKING PERFORMANCE MEETS FEDERAL STANDARDS, IT CREATES A DANGEROUS SITUATION WHEN THE DRIVER IS NOT EXPECTING A FAILURE. A GMC DEALERSHIP HAS ADMITTED THERE IS AN ISSUE AND RECOMMENDS REPLACING THE VACUUM PUMP BUT HAS BEEN UNABLE TO SOURCE THE PARTS IN OVER TWO WEEKS AND HAS NO ETA FOR WHEN THE PART WILL BE AVAILABLE. MEANWHILE THE BRAKING POWER LOSS CONDITION OCCURS EVERY TIME THE VEHICLE IS DRIVEN. DURING THE FIRST INSTANCE, I WAS TOWING A TRAVEL TRAILER IN STOP AND GO TRAFFIC DOWN A 7% GRADE. HAD IT NOT BEEN FOR THE TRAILER BRAKES, THIS COULD HAVE BEEN CATASTROPHIC. THE SECOND OCCURRENCE INVOLVED BACKING INTO MY DRIVEWAY AND NEARLY CAUSING A COLLISION BECAUSE OF POOR BRAKING PERFORMANCE. NOW THAT I FULLY AWARE OF THE ISSUE, THE VEHICLE IS DRIVEN SPARINGLY (ONLY WHEN ABSOLUTELY NEEDED) AND WITH GREAT CARE. THE CHARACTERIZATION OF THIS ISSUE BY GM AS NOT BEING A GRAVE SAFETY CONCERN IS INACCURATE. THEIR INABILITY TO SOURCE PARTS IN A TIMELY MANNER IS INEXCUSABLE.

WHILE OPERATING VEHICLE ON HIGHWAY, I EXPERIENCE A SHAKE/SHUDDER WHEN AT SPEEDS OF 50 MPH AND HIGHER. VEHICLE WAS TAKEN TO DEALER STATED THAT THE TORQUE CONVERTER DID SHUDDER. DEALER CHANGED TRANSMISSION FLUID AND I WAS ADVISED TO DRIVE FOR 200 MILES TO SEE IF PROBLEM WAS CORRECTED. SHUDDER STILL REMAINS AND NOW THE VIBRATION IS CONSTANT AT 70 MPH. I CALLED DEALER AGAIN WHO SAID THAT IT WAS PROBABLY A TIRE BALANCE ISSUE. I ARGUED WITH THEM AND STATED I HAD NO SUCH ISSUE BEFORE FIRST BRINGING VEHICLE IN. DEALER IS SETTING UP APPOINTMENT FOR ME TO TAKE IN AGAIN. VIBRATIONS HAVE LITERALLY CAUSED MY 6 YR OLD DAUGHTER TO VOMIT ON 3 DIFFERENT OCCASIONS WHEN IN THE VEHICLE. SHE HAS ONLY BEEN IN VEHICLE 5 OR 6 TIMES. VEHICLE FEELS UNSAFE AT HIGHWAY SPEEDS. I HAVE READ MANY FORUMS ONLINE STATING THIS ISSUE IS ON MANY VEHICLES GM HAS MADE. I AM CURIOUS AS TO WHEN GM WILL BE MANDATED TO TAKE CORRECTIVE ACTION OR BUY THE VEHICLES BACK FROM THE OWNERS.

FIRST AND MOST IMPORTANTLY MY BRAKES ARE MY MAIN ISSUE AND SAFETY PROBLEM. I NEARLY RAN INTO THE CAR IN FRONT OF ME AT A BUSY INTERSECTION. MY TRUCKS BRAKES LOSE PRESSURE AFTER THE FIRST INITIAL STOP COMING TO ANY TRAFFIC LIGHTS, STOP SIGN, SLOW TRAFFIC, PARKING LOTS ETC... NO MATTER HOW SLOW OR FAST THE TRUCKS MOVEMENT IS. FIRST BREAK ATTEMPT IS OK BUT 2ND STARTS LOSING PRESSURE AND 3RD ATTEMPT IS COMPLETE LOST OF PRESSURE ANF AND THE TRUCK JUST ROLLS UNTIL IT SLOWLY COMES TO A STOP. I WORRY ABOUT THE SAFETY OF MYSELF AND OTHERS MOTORIST REGARDING THIS ISSUE. MY SECOND COMPLAINT IS MY DRIVER SIDE MIRROR. EVERY TIME I GET INTO MY TRUCK AND START IT. MY DRIVER SIDE MIRROR MOVES OUT OF ITS SETTING AND I CONSTANTLY HAVE TO FIX IT.