2017 GMC Sierra 3500

These are unverified consumer reports filed with NHTSA, shown as submitted.

• 12/30/2019· POWER TRAIN

  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.

• 12/30/2019· POWER TRAIN

  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.

• 12/22/2017· EXTERIOR LIGHTING

  THE HEADLIGHTS ON MY NEW GMC SIERRA 2500HD DENALI ARE HORRIBLE AND UNSAFE FOR DRIVING AT NIGHT. THE 25 WATT RATING AND 2,000 LUMENS ON THE OEM HID BULBS DO NOT PROVIDE ADEQUATE, SAFE LIGHTING FOR OPERATING MY VEHICLE. I ALREADY HIT A DEER WITH MY BRAND NEW TRUCK BECAUSE I COULDN'T SEE IT WELL ENOUGH IN ADVANCE OF THE COLLISION. GMC SHOULD BE HELD ACCOUNTABLE FOR PUTTING SUCH A LOW POWER, POOR QUALITY AND UNSAFE HEADLIGHT IN THEIR $70,000 VEHICLES. I'M RENTING A HYUNDAI WHILE MY TRUCK IS BEING REPAIRED AND THE HEADLIGHTS ON THIS $30,000 FOREIGN CAR ARE 10XS BETTER THAN THE ONES ON MY TRUCK. WHY?

• 12/21/2019· SERVICE BRAKES,VISIBILITY/WIPER

  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.

• 12/14/2017· ENGINE

  TL* THE CONTACT OWNS A 2017 GMC SIERRA. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE BEGAN TO SHUTTER WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (DONOVAN AND BAUER AUTO GROUP, 11579 HYDETOWN ROAD, TITUSVILLE, PA 16354), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE LOCAL DEALER WAS ABLE TO DUPLICATE THE FAILURE, BUT THERE WAS NO REMEDY TO CORRECT THE FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA. THE FAILURE MILEAGE WAS APPROXIMATELY 2,000. *TT CONSUMER STATED TRANSMISSION-SHUTTERING FEELS LIKE ENGINE MISS. UPDATED 8/14/18*JB

• 12/04/2019· POWER TRAIN

  VEHICLE IS SHUDDERING AND SHACKING AT SPEEDS ANY WHERE FROM 35 TO 55 MPH. I TOOK IT TO THE DEALERSHIP AND WAS TOLD IT'S A KNOWN TORQUE CONVERTER ISSUE.

• 11/28/2018· ELECTRICAL SYSTEM

  WHEN REVERSE IS ACTIVATED AT NIGHT, THE BACKUP CAMERA COMES ON AT FULL BRIGHTNESS AND IS NOT DIMMABLE. THE BRIGHT SCREEN PREVENTS VIEW OF THE PASSENGER SIDE MIRROR AND SIGNIFICANTLY REDUCES VISIBILITY IN THE DRIVER SIDE MIRROR WHILE REVERSING. THE SCREEN CANNOT BE DEACTIVATED AND BLINDS THE DRIVER. THIS IS AN ONGOING ISSUE.

• 11/26/2018· SERVICE BRAKES

  WHILE DRIVING ON THE HIGHWAY AT 70MPH, A SERVICE BRAKE ASSISTANT WARNING CAME ON. THE BRAKES AT THAT POINT WERE EXTREMELY DIFFICULT TO USE AND THERE WAS NO WAY FOR A QUICK STOP. WAS ABLE TO GET TO A DEALERSHIP WHERE THEY HAD TO REPLACE THE MASTER CYLINDER, THE BOOSTER PUMP, VACUUM PUMP AND TUBING. COST FOR THE REPAIR WAS OVER $1,200.

• 11/13/2019· SERVICE BRAKES

  THE PAST MONTH AS I PUSH ON THE BRAKES DRIVING ON THE ROAD MY STEERING WHEEL STARTS TO SHAKE AS THE BRAKES ARE BEING APPLIED. DOES NOT HAPPEN ALL THE TIME HAS ACTUALLY ONLY HAPPENED 3 TIMES IN A MONTH.

• 11/13/2019· ELECTRICAL SYSTEM,VISIBILITY/WIPER

  AFTER USING THE REMOTE STARTER WHILE VEHICLE WAS PARKED IN MY DRIVEWAY, I STARTED TO DRIVE MY GRANDSON TO SCHOOL. A SHORT DISTANCE FROM HOME SMOKE AND SPARKS STARTED TO EMIT FROM THE REAR SEAT NEXT TO THE SLIDING WINDOW AND ELECTRIC REAR WINDOW DEFROSTER. AS I PULLED OVER THE REAR WINDOW PANEL ON THE PASSENGER SIDE BURST. I ASSUME FROM EXCESSIVE HEAT GENERATED BY THE REAR WINDOW DEFROSTER.

• 10/29/2019· SERVICE BRAKES

  WHEN YOU PUT ON THE BRAKES YOU HAVE TO PRESS SO HARD AND I MEAN HARD TO GET IT TO STOP. IT WAS NOT LIKE THAT WHEN IT WAS NEW. IT YOU PUT ATRAILER BEHIND THE TRUCK AND THE TRAILER HAS BREAKES THAT IS WHAT STOP THE TRUCK NOT THE TRUCK BRAKES. IT IS SAFE TO DRIVE. IT HAS BEEN GOING ON FOR ABOUT 3 MONTH.19/2019

• 10/28/2019· POWER TRAIN

  MY 2017 GMC SIERRA SHUTTERS AND JERKS WHEN GOING INTO AND OUT OF 1ST GEAR AND GOING AROUND CORNERS WHEN IT CHANGES GEARS. ESPECIALLY WHEN COLD. DOES NOT HAPPEN ALL THE TIME. AT TIMES IT HAS JERKED INTO AN INTERSECTIONAND WAS SCRY. MY WIFE WILL NOT DRIVE THIS VEHICLE. HAVE HAD IT LOOKED AT NUMEROUS TIMES AND THEY HAVE CHANGED THE FLUID. THEY TELL ME I HAVE A QUIRKY TRANS OR IT IS INHERENT TO THIS TRANSMISSION. IT IS EXTREMELY FRUSTRATING AND SCARY AT TIMES. I DON'T KNOW WHAT TO DO TO GET GM TO FIX IT. THIS HAS BEEN GOING ON SINCE I PURCHASED THE TRUCK ON 10/31/2017.

• 10/26/2019· SERVICE BRAKES

  WHILE BRAKING PEDAL FEELS LIKE GURGLING AND AT TIMES COMPLETE LOSS OF POWER ASSIST MAKING PEDAL VERY HARD TO DEPRESS ALL WERE IN MOTION AND INTERMITTENT MAKING DEALER DIAGNOSIS DIFFICULT AND NOT YET ABLE TO REPLICATE SO DEALER REFUSES TO DO WORK

• 10/25/2017· STEERING,POWER TRAIN,WHEELS

  VIBRATION 65+ MPH, FELT IN STEERING WHEEL AND SEAT. STEERING WHEELS QUIVERS AT 65+ MPH. TRUCK FEELS VERY UNSTABLE AT HIGHWAY SPEEDS. DEALER STATES IT'S NORMAL.

• 10/20/2024· POWER TRAIN

  tHE 6L90 TRANMISSION FAILED WITH NO WARNING AT 58,408 MILES. HAD TO BACK THE TRUCK UP IN TRAFFIC OVER 1/2 MILE TO REACH A SAFE SPOT. SEEMS GM IS HAVING A LOT OF PROBLEMS WITH THIS TRANSMISSION AND THEIR 8 SPEED TRANSMISSION. NO ASSISTANCE FROM GM TO REPAIR SEEING I WAS OUT OF THE 5 YEAR 100000 WARRANTY. SEEMS GM KNOW ABOUT THESES PROBLEMS. HAD TO SPEND $5K TO GET NO DEALER SERVICE TO INSTALL A REMANUFACTURED TRANS, HOPING IT WILL NOT HAPPEN AGAIN

• 10/20/2022· SERVICE BRAKES, HYDRAULICCrash

  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.

• 10/14/2018· ELECTRICAL SYSTEM

  WHEN REVERSE IS ACTIVATED AT NIGHT, THE BACKUP CAMERA COMES ON AT FULL BRIGHTNESS AND IS NOT DIMMABLE. THE BRIGHT SCREEN PREVENTS VIEW OF THE PASSENGER SIDE MIRROR AND SIGNIFICANTLY REDUCES VISIBILITY IN THE DRIVER SIDE MIRROR WHILE REVERSING. THE SCREEN CANNOT BE DEACTIVATED AND BLINDS THE DRIVER. THIS IS AN ONGOING ISSUE.

• 10/13/2022· POWER TRAIN

  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.

• 10/08/2019· SERVICE BRAKES

  FOR NHTSA RECALL 19V645, WHY DID NHTSA ACCEPT A 'REPROGRAMMING' OF THE FUNCTIONALITY TO 'BAND AID' THE ISSUE RATHER THAN REQUIRING REPLACEMENT OF THE VACUUM PUMP, WHICH IS THE IDENTIFIED DEFECTIVE ITEM?

• 10/05/2019· SUSPENSION,POWER TRAIN,UNKNOWN OR OTHER

  THE VEHICLE EXHIBITS VIBRATIONS THAT CAN BE RATHER EXTREME AT TIMES. IT SEEMS TO BE MOST NOTICEABLE IN THE 70-75 MPH RANGE BUT CAN SOMETIMES BE FELT AT OTHER SPEEDS. IT FEELS LIKE THE VIBRATION ORIGINATES FROM THE REAR OF THE VEHICLE. TWO DEALERSHIPS HAVE REPLACED MULTIPLE PARTS AND HAVE PERFORMED NUMEROUS ALIGNMENTS AND ROAD FORCE BALANCES BUT CAN NOT IDENTIFY/REMEDY THE PROBLEM. THERE ARE THOUSANDS OF COMPLAINTS ON MULTIPLE ONLINE FORUMS OF THIS SAME ISSUE FOR 2014-2015 GM 1500 SERIES PICKUP TRUCK. SO FAR THERE HAS BEEN NO FIX FOR THEM EITHER. GM TREATS IT AS AN ANNOYANCE IN THE COMFORT OF THE RIDE, HOWEVER IF THEY CAN NOT IDENTIFY THE ISSUE HOW DO THEY KNOW IT IS NOT A SAFETY RISK.

• 10/04/2019· POWER TRAIN

  WE WERE DRIVING UP A SLIGHT INCLINE IN A PARKING GARAGE WHEN THE ENGINE STARTED SPUTTERING AND SHUT OFF. AFTER SEVERAL ATTEMPTS IT STARTED AND WE WERE ABLE TO MAKE IT TO A PARKING SPACE WITH THE ENGINE STILL SPUTTERING. I RECEIVED A NOTIFICATION FROM THE TRUCK, DECREASED ENGINE POWER. THE NEXT DAY I BROUGHT IT TO BE CHECKED BY THE LOCAL GMC DEALER. THEIR DIAGNOSIS IS VAPOR LOCK WHEN THE FUEL PUMP GETS NEAR OR OVER 100 DEGREE. ITS MY OPINION THAT GMC PLACED A FAULTY PART WHEN MANUFACTURING THE VEHICLE. I WOULD LIKE THIS TO BE CONSIDERED FOR RECALL.

• 10/03/2019· POWER TRAIN,VISIBILITY/WIPER

  MY WINDSHIELD WIPER FLUID ONLY SPRAYS OUT 30% OF THE TIME. USUALLY IN THE MORNING THEN ANY OTHER TIME OF THE DAY IT WILL NOT SPRAY OUT. THEY REPLACED THE PUMP AND THAT DID NOT FIX IT AND THEY WON'T DO ANYTHING ELSE AND NOW IT IS OUT OF WARRANTY. WHEN RUNNING LOWER RPMS DRIVING THE TRUCK IT BEGINS TO FEEL LIKE ITS SHAKING FORWARD AND BACKWARDS, LIKE A SHUDDERING FEELING. I HAVE READ ABOUT OTHER PEOPLE HAVING THIS PROBLEM AND IT DESCRIBES MINE PERFECTLY. I HAVE THE 8SPEED

• 10/01/2019· ELECTRICAL SYSTEM,ENGINE

  GMC HAS REFUSED TO FIND A FIX FOR THE HEATER CORD DEFECT WHICH IS ONE OF THE MAIN REASON WHY I PURCHASED THE VEHICLE. I LIVE IN IDAHO. GMC SHOULD COMPENSATE OWNERS UNTIL FIXED.

• 10/01/2018· WHEELS,UNKNOWN OR OTHER,SERVICE BRAKESFire

  WHILE DRIVING DOWN A MOUNTAIN ROAD WITH A 5TH WHEEL ATTACHED IT APPEARED THAT THE REAR BRAKES ON THE DRIVERS SIDE WERE SMOKING, I PULLED OVER TO ALLOW IT TO COOL. WE FOUND A GMC DEALERSHIP AND PROCEEDED THERE VERY SLOWLY STOPPING A NUMBER OF TIMES TO ALLOW THE BRAKES TO COOL DOWN. 2 MILES SHORT OF GMC, THERE WAS A LOUD POP AND A TIRE HAD BLOWN. WE PULLED OVER AND WHILE CALLING ROADSIDE ASSISTANCE NOTICED FIRE UNDER THE TRUCK. WE PUT IT OUT WITH A FIRE EXTINGUISHER BEFORE THE FIRE DEPARTMENT ARRIVED. WE WERE TOWED TO THE DEALERSHIP. THE BRAKE CALIPER CAME APART, THE REAR AXLE BROKE (POSSIBLY MELTED FROM HEAT AND FIRE?). GM INITIALLY STATED 4 DAYS TO REPAIR, NOW THEY THEY ARE SAYING 3 WEEKS AS THEY HAVE TO BUILD A NEW AXLE. IF WE HAD NOT HAD THE EXTINGUISHER THE TRUCK, RV AND MEADOW WOULD HAVE ALL GONE UP IN FLAMES AND WHO KNOWS THE DISASTER THAT COULD HAVE OCCURRED IF THIS HAPPENED ON THE MOUNTAIN ROAD. THIS VEHICLE ONLY HAS 17,000 MILES, 11 MONTHS OLD AND HAS HAD ALL ROUTINE MAINTENANCE PERFORMED AT GMC DEALERS. I HAVE MORE PICTURES BUT AM UNABLE TO UPLOAD THEM.

• 09/25/2019· POWER TRAIN

  EXTREMELY HARD SHIFTS UP-AND-DOWN IN THE 1ST 2 GEARS FOLLOWED BY HESITATION AFTER STOPPING AND STARTING

• 09/23/2019· POWER TRAIN

  TL* THE CONTACT OWNS A 2017 GMC SIERRA 1500. WHILE THE VEHICLE WAS IDLING AT A TRAFFIC LIGHT, IT BEGAN TO RATTLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO FRESNO BUICK GMC (LOCATED AT 5515 N BLACKSTONE AVE, FRESNO, CA 93710, (559) 742-4113) WHERE AN UNKNOWN DIAGNOSIS AND REPAIR WERE PERFORMED; HOWEVER, THE FAILURE CONTINUED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 24,000.

• 09/22/2025· POWER TRAIN

  The contact owns a 2017 GMC Sierra 3500. The contact stated that while shifting from park(P) to drive(D), the engine revved, but the vehicle failed to move forward. There were no warning lights illuminated. The vehicle was towed to a certified mechanic, who determined that the vehicle needed to be diagnosed by a dealer. The mechanic was able to shift the transmission into manual drive mode, allowing the contact to drive the vehicle to the residence. The dealer was contacted and informed the contact that the VIN was not under recall. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact back to the dealer for assistance. The failure mileage was approximately 120,000.

• 09/18/2019· SERVICE BRAKESCrash

  AS I WAS BACKING UP I APPLIED MY BRAKES AND FOR SOME REASON NOTHING HAPPENED WHICH RESULTED IN MY HITTING MY WIFE'S CAR AND DAMAGING HER DRIVERS SIDE QUARTER PANEL. WHEN I ASKED GMC ABOUT THE ISSUE THEY SAID IT WAS JUST AN ERROR ON MY PART. NOW I FIND OUT THAT THERE IS A RECALL ON THE BRAKING SYSTEM THAT THE PRESSURE TO THE BRAKES MAY BE AFFECTED. WHO IS RESPONSIBLE FOR THE DAMAGE TO HER CAR?

• 09/11/2019· POWER TRAIN

  SINCE DECEMBER OF 2017 THE TRANSMISSION, WHEN COLD, AT APPROX. 25 MPH AND AT 40-44 MPH WHEN NEUTRAL THROTTLE IS APPLIED, BANGS BETWEEN GEARS FORCING THE OPERATOR TO EITHER ACCELERATE OR DECELERATE SO THE CONDITION WILL CEASE. IF THERE IS NO CHANGE BY THE OPERATOR, IT FEELS AS IF THE TRANSMISSION WILL BREAK THE U-JOINTS IN THE DRIVELINE OR BLOWOUT THE REAR-END GEARS. I HAVE MADE NUMEROUS ATTEMPTS WITH GMC TO REMEDY THE ISSUE TO NO AVAIL. THE VEHICLE HAS BEEN IN THE DEALERSHIP IN EXCESS OF 40 DAYS FOR THE SAME PROBLEM WITH NO RESOLUTION

• 08/28/2019· UNKNOWN OR OTHER

  VIBRATION AT HIGHWAY SPEEDS. BEEN TO THE DEALER 6 TIMES. TIRES REPLACED ORIGINALLY, THEN TIRES BALANCED THE SECOND TIME, THIRD TIME "ACCEPTABLE VIBRATION", FOURTH TIME "COULD NOT DUPLICATE ISSUE", FIFTH TIME "PROBLEM RECOGNIZED, TORQUE CONVERTER REPLACED", SIXTH TIME "ACCEPTABLE VIBRATION".

• 08/28/2018· POWER TRAIN

  THE "CHEVY SAKE". AT SPEEDS OVER 70MPH EXCESSIVE VIBRATION INSIDE THE VEHICLE. THIS IS WELL DOCUMENTED ON-LINE, PARTICULARLY VARIOUS GM FORUMS AND YOU TUBE VIDEOS. IT IS MY UNDERSTANDING THAT GM DENIES IT IS A PROBLEM, BUT THEY HAVE BEEN DOING SOME BUY BACKS AND IF YOU READ SOME OF THE DEALER BLOGS IT IS EVIDENT THAT GM KNOWS IT IS A PROBLEM.

• 08/24/2019· AIR BAGS

  ONLY HAVE 18,820 MILES ON OUR TRUCK AND THE AIRBAG LIGHT IS ON. SHOULDN'T HAVE ISSUES WITH AIRBAGS ON A TRUCK THAT'S BARELY DRIVEN.

• 08/08/2022· SERVICE BRAKESCrash

  Brake are very spongy all the time we’ll While driving in parking lot at low speed we lost brakes happen to hit person in front. This has been a continuous problem to point we are scared to even use the truck to go to store. Took it to Firestone. They told me it was the master cylinder. So they replaced that, replaced the front rotors and pads, did a fluid exchange abs as well? Don’t know what that is. On the internet there is tons of this issue. I even see GMC 1500 is having this issue and there is a recall for the recalibration electric brake controller? Couldn’t it include the full Sierra line?. Why not on the 2500, 3500? Looks to be same system? Rotors and calipers are different thats it If anyone can help please let me know. It’s not covered under warranty and they want to replace some pump for $1500. I just paid $1500 for something totally different

• 08/04/2017· UNKNOWN OR OTHER

  PURCHASED A NEW 2017 GMC DENALI 3500. THE TRUCK CAME WITH 4 MICHILEN LT 265/70R18 A/T2 TIRES ON IT. THE SPARE TIRE IS A GOODYEAR TIRE. PAGE 401 AND PAGE 402 OF THE OWNERS MANUAL STATES: MIXING TIRES OF DIFFERENT SIZES,BRANDS, OR TYPES MAY CAUSE LOSS OF CONTROL OF THE VEHICLE, RESULTING IN A CRASH OR OTHER VEHICLE DAMAGE. USE THE CORRECT SIZE, BRAND, AND TYPE OF TIRES ON ALL WHEELS."

• 07/27/2017· POWER TRAIN

  TL* THE CONTACT OWNS A 2017 GMC SIERRA. WHILE DRIVING APPROXIMATELY 5 MPH, THE VEHICLE FAILED TO SHIFT OUT OF GEAR AND THERE WAS A DELAY OF THREE TO FOUR SECONDS BEFORE SHIFTING INTO SECOND GEAR. THE FAILURE RECURRED EVERY MORNING. THE VEHICLE WAS TAKEN TO THE DEALER (JIM CAUSLEY, LOCATED AT 38111 GRATIOT AVE, CLINTON TOWNSHIP, MI 48036) WHERE IT WAS CONFIRMED THAT GM WAS AWARE OF THE ISSUE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THERE WAS NO RECALL ON HIS VIN. NO FURTHER ASSISTANCE WAS OFFERED. THE APPROXIMATE FAILURE MILEAGE WAS 4,500. UPDATED 11/13/17 *BF *TR

• 07/07/2022· TIRESCrash

  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.

• 07/02/2018· POWER TRAIN

  THIS TRUCK IS A 3500 HD. I WAS PULLING A CAMPER ON A 1100 MILE TRIP. WITH 50 MILES LEFT I NOTICED THAT THE TRUCK WAS LEAKING TRANSMISSION FLUID FROM UNDER THE TRANSMISSION COOLER. UPON FURTHER INVESTIGATION I FOUND THAT THE RETURN HOSE FROM THE TRANS COOLER WAS POSITIONED SO THE IT RUBBED ON A FRAME COMPONENT WHICH CAUSED A HOLE TO RUB IN THE ALUMINUM TRANS COOLANT RETURN LINE. I NOTICED THIS WHEN THE TRUCK WAS PARKED RUNNING AT A REST AREA FOR AN HOUR BUT IT WAS OBVIOUSLY AN ONGOING ISSUE. HAD I NOT NOTICED IT WHEN I DID THIS CONDITION COULD HAVE CAUSED CATASTROPHIC FAILURE OF THE TRANSMISSION. THE DEALER SAYS THERE IS NO RECALL AND IT IS NOT UNDER WARRANTY. I CONSIDER THIS TO BE A SERIOUS DESIGN FLAW AND A MAJOR SAFETY ISSUE. I WAS ABLE TO GET TO MY DELIVERY STOP AND GET THE LINE PATCHED. IT IS AT THE DEALER FOR REPAIRS RIGHT NOW.

• 06/21/2019· TIRES

  TL* THE CONTACT OWNS A 2017 GMC SIERRA EQUIPPED WITH CONTINENTAL CROSSCONTACT LX TIRES, SIZE: 275/552/0352 (NA). THE CONTACT STATED THAT THE TIRES FLATTENED. THE TIRES WERE THE ORIGINAL TIRES AND THEY LOST AIR IMMEDIATELY. DIAMOND AUTO GROUP (768 WASHINGTON ST RT. 20, AUBURN, MA 01501, (508) 635-4207) WAS CONTACTED, BUT THEY DID NOT WANT TO REPAIR OR CHANGE THE TIRES. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE VEHICLE FAILURE MILEAGE WAS 33,731 AND THE TIRE FAILURE MILEAGE WAS 73,000. THE VIN WAS UNKNOWN.

• 06/17/2019· POWER TRAIN

  HARD SHIFTING BETWEEN GEARS AND COMING TO A STOP

• 06/10/2019· POWER TRAIN,ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL

  TL* THE CONTACT OWNS A 2017 GMC SIERRA. WHILE REVERSING, THE VEHICLE HESITATED AND SURGED FORWARD. WHILE DRIVING VARIOUS SPEEDS, THE ACCELERATOR PEDAL WAS RELEASED AND THE VEHICLE ACCELERATED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO SILVER STAR BUICK GMC (3601 AUTO MALL DR, THOUSAND OAKS, CA 91362, (805) 222-4789) WHERE IT WAS DIAGNOSED THAT THE SOFTWARE NEEDED TO BE UPDATED AND THE VEHICLE WAS PERFORMING AS DESIGNED. THE VEHICLE WAS REPAIRED; HOWEVER ,THE FAILURE RECURRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 415.

• 06/06/2025· POWER TRAIN

  The contact owns a 2017 GMC Sierra 3500. The contact stated while driving 30 MPH, there was smoke and a squealing sound coming from the passenger’s side rear wheel. The vehicle was taken to the residence and the contact observed fluid on the axle tube. The contact stated that the axle as taken apart and the wheel bearings were in pieces. The contact stated that the axle nut had unintendedly backed off. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 25,000.

• 04/29/2025· ELECTRICAL SYSTEM,SERVICE BRAKES

  Trailer brake system connection warning Intermittent when towing it will say trailer not connected, while still having a secure 7 pin connection. This causes me to loose trailer brakes. My camper is nearly 14,000 lbs. Very dangerous situation. Happened since new. Was into / complained to GM service dept over 6 times.

• 04/29/2024· VISIBILITYFire

  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.

• 04/23/2019· STEERING,ELECTRONIC STABILITY CONTROL (ESC)

  THE STABILITRAK SENSOR KEEPS GOING ON AND OFF. I'VE HAD THIS ISSUE WHEN I FIRST GOT THE TRUCK IN THE END OF OCTOBER IN 2017. THE DEALERSHIP COULD NOT FIX IT AT FIRST BUT FINALLY HAD TO FIX SOME WIRING. I'VE SEEN IT GO ON A FEW TIMES SINCE THEN BUT NEVER STAYED ON. AND FOR ABOUT 2-3 WEEKS IT'S BEEN COMING ON AND OFF BUT STAYING MORE ON AND NOT GOING AWAY NOW. I FEEL LIKE THIS SHOULDN'T HAPPEN TO A NEWER TRUCK

• 04/12/2022· EQUIPMENT

  The contact owns a 2017 GMC Sierra 3500. The contact received notification of NHTSA Campaign Number: 21V496000 (Equipment) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

• 03/18/2019· FUEL/PROPULSION SYSTEM

  TL* THE CONTACT OWNS A 2017 GMC SIERRA. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 19V088000 (FUEL SYSTEM) EXCEEDED A REASONABLE AMOUNT OF TIME FOR REPAIR. THE CONTACT RECEIVED THE RECALL NOTICE IN FEBRUARY OF 2019. SPRINGFIELD BUICK GMC (431 RIVER ST, NORTH SPRINGFIELD, VT 05150) STATED THAT THE PARTS WERE UNAVAILABLE TO PERFORM THE REPAIR. THE MANUFACTURER WAS ALSO CONTACTED AND CONFIRMED THAT THE PARTS WERE UNAVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

• 03/07/2020· STEERING,ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC)

  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

• 03/07/2018· SERVICE BRAKESCrash

  I ALMOST KILLED A KID TODAY PARKING FOR A BASEBALL GAME. I WAS TRAVELING SLOWLY AND PARKING WHEN MY BRAKES BECAME HARD TO PUSH AND FAILED. TRUCK WENT OVER CURB AND TOWARD KID PUTTING ON HIS CLEATS AND NOT FACING ME. I WAS ABLE TO PUSH AS HARD AS I COULD AND IT STOPPED. I BACKED UP AND BRAKES WORKED AGAIN. I HAVE 46,000 MILES ON THE TRUCK. I AM NOW AFRAID TO DRIVE IT, BUT IT SEEMS THEY ARE WORKING AGAIN. IF THIS IS COMMON, GMC NEEDS TO TAKE CARE OF THIS. SOMEONE WILL SOON BE HURT SERIOUSLY!

• 03/02/2020· SERVICE BRAKES

  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.

• 03/01/2020· SUSPENSION,STRUCTURE,SERVICE BRAKES

  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.