2015 GMC Sierra 1500

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

• 12/31/2021· STEERING

  Steering Suddenly stops working when making a turn and have no control of the steering . Happen 3 times yesterday almost was in a accident. Then starts working again.

• 12/31/2019· ELECTRICAL SYSTEM

  REAR SLIDING GLASS WINDOW DEFOGGER CONTACTS ARE SMOKING AND MAKING SIZZLING NOISE. FIRE HAZARD. HAD TO REMOVE FUSE NUMBER 10 FROM ENGINE BLOCK TO PREVENT AUTO START FROM ENGAGING REAR DEFOGGER IN COLD WEATHER, OR TO PREVENT DEFOGGER SWITCH FROM BEING ENGAGED BY FAMILY MEMBER. 46K MILES 2015 GMC SIERRA

• 12/30/2020· SERVICE BRAKES

  4 MONTHS AGO THE DISPLAY PORTRAYED A MESSAGE STATING, TRAILER BRAKE WARNING, HAVE SYSTEM CHECKED. SINCE THAT TIME I HAVE ATTEMPTED ON NUMEROUS TO HAVE MY VEHICLE CHECKED. BUT AS OF THIS DATE I HAVE NOT BEEN TO HAVE ANY DEALERSHIP LOOK AT MY VEHICLE. I HAVE BEEN TOLD BY DEALERSHIP THAT THE VEHICLE COMPUTER SHOWS A HISTORY BUT NO CURRENT ERROR CODES, AND THEY CAN NOT WORK ON VEHICLE UNTIL IT HAS CURRENT CODES. SO I HAVE A TRUCK THAT IS DESIGNED TO TOW CARGO/VEHICLE BUT I AM NOT ABLE TO USE MY TRUCK FOR THAT PURPOSE BECAUSE OF THIS WARNING MESSAGE. I HAVE CONTACTED DEALERSHIPS, CUSTOMER SERVICE WITH GMC AND EVEN FILED A COMPLAINT WITH TENNESSEE DEPT OF CONSUMER AFFAIRS, BUT NO ONE WANTS TO HELP WITH MY PROBLEM. I HAVE NOTICED ON THE INTERNET THAT I AM NOT THE ONLY ONE WITH THIS ISSUE. DANGEROUS SITUATION SHOULD SOMEONE USE VEHICLE TOWING. BIGGEST PROBLEM GM DOES NOT WANT TO EVEN ACKNOWLEDGE THAT THEY HAVE A PROBLEM.

• 12/30/2020· VISIBILITY/WIPER

  USED THE REMOTE START TO WARM THE TRUCK UP. GOT IN AND WAS LEAVING MY DRIVEWAY AND THE REAR WINDOW EXPLODED. READ DEFROST WAS ON SINCE WE RECEIVED 6+ INCHES ON SNOW TODAY.

• 12/30/2014· EXTERIOR LIGHTING

  TL* THE CONTACT OWNS A 2015 GMC SIERRA. WHILE DRIVING 30 MPH, THE HEADLIGHTS WERE DIM AND THE CONTACT COULD NOT VIEW THE ROAD PROPERLY. THE CONTACT WAS CONCERNED FOR HIS SAFETY. THE FAILURE RECURRED MULTIPLE TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 12,500.

• 12/28/2024· POWER TRAIN

  I've been having transmission issues which cause harder shifting than usual. upon research, I found that the 2016 GMC Sierra's have a special coverage that replaced the transmission harness which throws the code P0711 for the temperature sensor and P0700 which is the generic transmission code. The only difference between my VIN and the VINs covered under this special coverage is that my Sierra is a 2015, everything else is the same down to the part number of the known faulty transmission harness.

• 12/28/2022· ELECTRICAL SYSTEM,VISIBILITY/WIPER

  Rear defroster (with sliding rear window) thermal events with arcing and hissing, smoke smell present. Matches the same description as provided in document N192265660. GM will not cover my vehicle because it was not delivered to a dealer in any of the states listed in the document. There is evidence in the vehicle of thermal events, however GM wants me to pay $1000-$1500 for a new rear sliding window.

• 12/27/2021· AIR BAGS

  GM issued a recall notice on July 1, 2021, regarding the rear curtain airbags in my Sierra. To this date (12/27/21), they have still not provided an ETA for getting this remedied. I called the dealership in September, to which they stated it would be another month before they could address it. I am wanting to be proactive to get this issue remedied, but the delay is unacceptable. I am escalating this to get some traction.

• 12/27/2019· STEERING

  WHEEL GOT REAL HARD TO MOVE

• 12/27/2018· SERVICE BRAKES

  IT STARTED HAPPENING A WEEK OR SO AGO WHERE WHEN IN REVERSE OR AFTER SWITCHING FROM REVERSE TO DRIVE AND TRYING TO BRAKE THE PEDAL WOULDN'T COMPRESS, IT WAS AS IF THEY WERE LOCKING UP ON ME. I WOULD HAVE TO PUT MOST OF MY BODY WEIGHT ON THE PEDAL TO EVEN GET THE TRUCK TO STOP, TO THE POINT WHERE I ALMOST RAN INTO MY NEIGHBORS CAR BACKING OUT OF THE DRIVEWAY. IT SEEMED TO MAINLY HAPPEN AT SLOWER SPEEDS, IN BOTH DRIVE AND REVERSE AS IT HAPPENED ON MORE THAN ONE OCCURRENCE. LUCKILY I DECIDED TO TAKE IT TO THE GMC DEALER BEFORE ANYTHING SERIOUS HAPPENED, BUT THIS IS A HUGE SAFETY CONCERN AND I FEEL IT NEEDS TO BE ADDRESSED. THE DEALER ALSO KNEW EXACTLY WHAT THE ISSUE WAS BEFORE I COULD GIVE THEM ANY INFORMATION, SO IT SEEMS LIKE THIS IS A COMMON PROBLEM. THEY REPLACED MY VACUUM PUMP AND WE WILL SEE IF THAT FIXES THE PROBLEM.

• 12/26/2019· ELECTRICAL SYSTEM,VISIBILITY/WIPER

  TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT WENT TO AUTOSTART THE VEHICLE AND NOTICED THAT THE REAR WINDOW WAS SMOKING AND EMITTING A BURNING ODOR. THE CONTACT TURNED OFF THE AUTO REAR DEFROSTER AND THE REAR WINDOW SHATTERED. THERE WERE NO INJURIES. THE CONTACT TOOK THE VEHICLE TO WEST HERR CHEVROLET OF HAMBURG (LOCATED AT 5025 SOUTHWESTERN BLVD, HAMBURG, NY 14075, 877-308-1785), BUT THEY WERE UNABLE TO REPAIR THE VEHICLE. THE CONTACT HAD THE VEHICLE REPAIRED BY A GLASS COMPANY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THERE WAS NO RECALL REGARDING THE FAILURE. THE MANUFACTURER PROVIDED CASE NUMBER: X_XX/XXX/XXXX. THE APPROXIMATE FAILURE MILEAGE WAS 45,000. *LN MANUFACTURER CASE NUMBER: X_XX/XXX/XXXX ('PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB

• 12/26/2016· ENGINE

  I BOUGHT THIS TRUCK NEW IN 4/2106 AND THERE IS A CLICKING SOUND WHEN ENGINE IS RUNNING. IS THIS NORMAL?

• 12/25/2017· ELECTRICAL SYSTEM

  HEADLIGHT ON THE 2015 GMC SIERRA 1500 SLT ARE TERRIBLE. THEY ARE THE WORST OF ANY VEHICLE I'VE DRIVEN. THE PROBLEM STEMS FROM THE POORLY DESIGNED REFLECTOR FOR THE HALOGEN BULB.

• 12/24/2016· EXTERIOR LIGHTING

  HEADLIGHTS ARE SO DIM, (HIGH AND LOW BEAM), THAT THEY SHOULD BE CONSIDERED A SERIOUS SAFETY ISSUE.

• 12/23/2021· SERVICE BRAKES

  Service Trailer Brake Brake System error keeps flashing.

• 12/23/2020· EXTERIOR LIGHTING

  TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT STATED THAT THE HEADLIGHTS WERE VERY DIM MAKING IT DIFFICULT TO VIEW THE ROAD WHILE DRIVING AT NIGHT. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO VARNEY BUICK GMC MAZDA (260 HOGAN RD, BANGOR, ME 04401) WHERE THE BULBS WERE REPLACED UNDER A TECHNICAL SERVICE BULLETIN HOWEVER, THE BULB REPLACEMENT FAILED TO FIX THE FAILURE. THE CONTACT STATED THAT HE REPLACED THE BULBS TWICE WITH LED BULBS HOWEVER, THE FAILURE PERSISTED. THE VEHICLE WAS NOT TAKEN BACK TO THE DEALER AND WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 28,202. CONSUMER STATED VEHICLE WAS TAKEN TO THE DEALER FOR DEFECTIVE DRIVING LIGHT. DEALER STATED NOTHING COULD BE DONE ABOUT IT. CONSUMER ALSO STATED HE HAD HIT 2 DEERS AT NIGHT.*JB

• 12/23/2018· SERVICE BRAKES

  BRAKE PUMP WENT OUT ALMOST RAN INTO A POLE. READING ONLINE AND SEE A LOT OF PEOPLE HAVING THE SAME PROBLEM. ANGRY!!

• 12/23/2015· EXTERIOR LIGHTING

  HEADLIGHTS ARE NOT SAFE TO BE USED IN THE DARK. DRIVING ON CURVY, HILLY ROADS IS VERY DANGEROUS. CAN NOT SEE WELL. HIGH BEAMS BARELY DIFFERENT FROM LOW BEAMS. LIVE IN TOWN SO THIS WAS FIRST TIME OUT ON ROAD AT NIGHT. SCARY. CAN'T IMAGINE WHAT IT WOULD HAVE BEEN LIKE IN RAIN OR SNOW STORM.

• 12/21/2020· ELECTRICAL SYSTEM,SERVICE BRAKES

  SUPPOSEDLY THE BRAKES HAVE BEEN FIXED FOR THE RECALL, HOWEVER, IF I AM DRIVING AS LOW SPEEDS LIKE IN A PARKING LOT, THE ABS WILL KICK IN CAUSING ME TO NOT COME TO A STOP WHEN NEEDED. I HAVE ALMOST HIT SEVERAL VEHICLES DUE TO THIS ISSUE. I HAVE ISSUES WITH THE RADIO WORKING, SPECIFICALLY BEING ABLE TO ADJUST THE SOUND LEVEL. I HAVE ISSUES WITH THE MIRRORS BEING ABLE TO MOVE LIKE THEY SHOULD. BOTH OF THE ELECTRICAL ISSUES ARE PERMANENT, IT DOES NOT MATTER IF I AM PARKED OR DRIVING, THEY DO NOT WORK AT ALL. THIS IS BY FAR THE WORST VEHICLE I HAVE EVER PURCHASED. THE BRAKES HAVE BEEN OCCURRING FOR YEARS AND THERE WAS NO CHANGE WHEN IT WAS BROUGHT IN FOR THE RECALL. THE MOST RECENT ISSUE IS NOW MY EVAP SYSTEM NEEDS TO BE FIXED. I CAN ONLY IMAGINE WHAT THAT WILL COST TO FIX ON A VEHICLE THAT ONLY HAS 100,000 MILES ON IT. CAN'T WAIT TO GET THAT BILL!

• 12/21/2016· STEERING,ELECTRICAL SYSTEM

  ON TUESDAY, DECEMBER 20TH 2016 AT APPROXIMATELY 7:15PM WHILE DRIVING SOUTH ON NEW RIVER ROAD IN LINCOLN RI I TRIED TO MAKE A LEFT TURN ONTO A SIDE STREET. WHEN I TURNED THE STEERING WHEEL LEFT IT WAS SNATCHED OUT OF MY HANDS AND THE STEERING WHEEL AUTOMATICALLY TURNED BACK TO CENTER IT SELF. I COULD NOT MANEUVER THE VEHICLE AS IT ROLLED UP ONTO THE SIDEWALK WHERE I HAD TO USE THE EMERGENCY BRAKE TO FORCE THE VEHICLE FROM ROLLING INTO A TREE. THE VEHICLE DIC DISPLAYED "PARK ASSIST" AND AFTERWARDS THE VEHICLE WENT COMPLETELY DEAD...NO LIGHTS OR SOUNDS WHEN I TRIED TURNING THE KEY TO RESTART IT. LIFTED UP THE HOOD AND ALL THE ELECTRONICS CAME BACK ON AND VEHICLE STARTED. DIC PROMPT DISPLAYED "OPEN AND THEN CLOSE THE DRIVER SIDE WINDOW" HAD VEHICLE TAKEN TO DEALER FOR SERVICE. *TR

• 12/20/2019· ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC)

  WHILE THANKFULLY DRIVING IN THE SLOW LANE ON THE INTERSTATE IN ST. LOUIS MY STABILITY LIGHT CAME ON THE TRUCK THEN SLOWED DOWN ON ITS OWN THEN WENT INTO FOUR-WHEEL-DRIVE THEN REVVED UP TO 6000 RPMS THEN EVERY SERVICE LIGHT CAME ON ON THE DASH WHEN PULLING TO THE SIDE OF THE ROAD THE CAR THEN WOULD NOT DRIVE FORWARD IT STAYED IN NEUTRAL REGARDLESS OF GEARSHIFTING IT THEN BEGAN TO CYCLE THROUGH ALL OF THE SERVICE REQUEST FOR THE VEHICLE. AFTER HAVING TO HAVE THE VEHICLE TOWED TO THE NEAREST DEALERSHIP WHICH WAS THREE HOURS AWAY FROM MY HOUSE THEY INFORMED ME THE FOLLOWING MORNING THE POWER STEERING CONTROL GEARBOX HAD WENT OUT AND FRIED ALL THE ELECTRICAL'S INSIDE THE VEHICLE. THE VEHICLE HAS LESS THAN 39,000 MILES AFTER CONTACTING GMC THEY TOLD ME THERE WAS NOTHING THEY COULD DO THAT THERE WAS NOTHING ON A RECALL LIST FOR MY VEHICLES VIN NUMBER. AFTER DOING SOME RESEARCH I SAW THAT THERE WAS A RECALL FOR A VERY SIMILAR SITUATION IN 2018 IN SEPTEMBER. I HAVE VIDEOS OF THE VEHICLE COMPUTER SYSTEM MALFUNCTIONING IF REQUESTED. I JUST WANTED TO DOCUMENT AND FILE A COMPLAINT SO THIS DIDN'T HAPPEN TO SOMEONE ELSE AND CAUSE A SERIOUS WRECK , SINCE GMC HAS FAILED TO RECOGNIZE THIS SERIOUS OF AN ISSUE.

• 12/20/2018· ELECTRICAL SYSTEM

  TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING 7 MPH, THE VEHICLE STALLED AND THE SERVICE STABILITRAK WARNING INDICATOR ILLUMINATED. THE CONTACT MOVED THE GEAR SHIFTER INTO NEUTRAL AND WAS ABLE TO COAST THE VEHICLE TO THE SIDE OF THE ROAD. THE VEHICLE FAILED TO RESTART. THE CONTACT CALLED CLASSIC CHEVROLET SUGAR LAND AT (281) 969-4132 (LOCATED AT 13115 SOUTHWEST FWY, SUGAR LAND, TX 77478) AND WAS INFORMED TO CHECK THE BATTERY. THE VEHICLE WAS RESTARTED AND WAS ABLE TO DRIVE NORMALLY; HOWEVER, THE FAILURE RECURRED THREE TIMES. IN ADDITION, THE AIR BAG WARNING INDICATOR ILLUMINATED AND THE PARK ASSISTANCE BUTTON WAS COMPLETELY DISABLED. THE VEHICLE WAS TAKEN TO CLASSIC CHEVROLET SUGAR LAND WHERE IT WAS DIAGNOSED THAT THE GROUND G218 CAUSED A LOW VOLTAGE TO THE BODY CONTROL MODULE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED CASE NUMBER: [XXX]. THE APPROXIMATE FAILURE MILEAGE WAS 91,000. PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

• 12/20/2017· UNKNOWN OR OTHER

  THE AIR CONDITION CONDENSOR IS LEAKING AND THEREFORE CAUSED THE AC NOT WORK. WE HAVE PURCHASED A NEW CONDENSOR TO REPLACE IT AND FIX THE PROBLEM BUT THIS SHOULD BE COVERED BY THE MANUFACTURER.

• 12/20/2017· STEERING

  TL* THE CONTACT OWNS A 2015 GMC SIERRA DENALI. WHILE DRIVING APPROXIMATELY 60 MPH, THE STEERING LOST POWER AND THE POWER STEERING WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TOWED TO THE DEALER (SEWELL BUICK GMC OF DALLAS IN DALLAS, TX, PHONE NUMBER: 214-350-8000) WHERE A DIAGNOSTIC TEST WAS PERFORMED. THE CONTACT WAS NOT GIVEN THE RESULTS OF THE TEST. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OFFERED TO PAY A PERCENTAGE OF THE REPAIR COSTS. THE FAILURE MILEAGE WAS 39,900. *BF UPDATED 8/28/18*JB

• 12/19/2022· UNKNOWN OR OTHER

  Service Trailer Brake System warning keeps coming on every time I start my truck.

• 12/19/2019· ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES

  TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 19V761000 (ELECTRONIC STABILITY CONTROL, SERVICE BRAKES, HYDRAULIC, SERVICE BRAKES). THE CONTACT TOOK THE VEHICLE TO FINNEGAN CHEVROLET BUICK GMC (26529 SOUTHWEST FWY, ROSENBERG, TX 77471, (281) 342-4200) TO BE SERVICED FOR THE SOFTWARE UPDATE. AFTER THE CONTACT HAD THE VEHICLE REPAIRED PER THE RECALL, WHILE DRIVING AT A LOW RATE OF SPEED, THE BRAKES FAILED TO OPERATE WITHOUT WARNING. THE VEHICLE WAS TOWED BACK TO THE DEALER WHERE IT WAS DIAGNOSED WITH A FAULTY BRAKE VACUUM PUMP. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND DID NOT ASSIST BECAUSE THE VEHICLE WAS PREVIOUSLY REPAIRED PER THE RECALL. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 65,000.

• 12/18/2017· SERVICE BRAKES

  TAKATA RECALL WHEN BACKING UP BRAKE PEDAL IS NOT AT ITS NORMAL PRESSURE SEEMS TO BE ALL THE WAY DOWN SO HAVE TO PRESS BRAKE HARDER TO STOP THE TRUCK WHEN I SHIFT TO DRIVE FORWARD SAME THING APPLIES. AFTER TRUCK HAS BEEN OFF FOR SOME TIME PARKED THEN START TO DRIVE BRAKES SEEM TO BE WORKING FINE.

• 12/18/2017· EXTERIOR LIGHTING

  TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING AT ANY SPEED AT NIGHT, THE CONTACT COULD NOT SEE ABOVE 50 TO 55 FEET AHEAD. THE VEHICLE WAS TAKEN TO THE DEALER (GRAFF CHEVROLET, OKEMOS, MI, 517-349-8300) WHERE THE TECHNICIAN UTILIZED THE TSB INSTRUCTIONS AND ADJUSTED THE HEADLIGHTS. THE CONTACT STATED THAT THE LIGHTS BECAME BRIGHTER, BUT THE FAILURE WAS NOT COMPLETELY REPAIRED. THE CONTACT DID NOT REMEMBER WHETHER THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 12,000.

• 12/17/2021· SERVICE BRAKES

  The component that malfunctioned is the vehicle braking system at slow speeds. I first experienced the problem at a restaurant drive thru line. After several stops as the line advanced, the braking system failed (extremely hard pedal) and car kept advancing and if someone would have been directly in front of me ( at a normal distance for a drive thru ) I would have made contact with them at a slow speed. I checked with my dealer the next day and they said that there were no reported problems for this issue on my vehicle. No warning lamps or messages present but it seems to me to be similar to the recall ( N192268490 ) as it only happens at slow speed with repeated application of the brake. There were no symptoms of the problem prior to this incident and it took me completely by surprise. I took the vehicle in to a service facility and they test drove it and said that they did not recreate the failure but I believe that they didn't try repeated braking at slow speed as I requested. I feel that there is a problem and that it only shows up during the aforementioned driving conditions. I have checked your website and the manufacturers and my truck VIN doesn't show up for their computer reprogramming recall but think that maybe it should.

• 12/17/2018· SERVICE BRAKES

  I WAS PULLING A TRAVEL TRAILER AT 55 MILES AN HOUR, I CAME OVER A HILL TO AN INTERSECTION AND I HAD LOST MY BRAKES. I MANAGED TO FINALLY COME TO A STOP. I DISCONNECTED MY TRAILER. I WENT TO A LOCAL GMC DEALERSHIP, AND THEY DID NOT HAVE TIME TO REPAIR MY VEHICLE. I TOOK IT TO AN INDEPENDENT REPAIR SHOP,AND THEY SAID MY VACUUM BRAKE BOOSTER PUMP HAD FAILED. THEY INSTALLED A NEW VACUUM BREAKER BOOSTER PUMP FOR THE NEXT DAY. THIS WAS A VERY DANGEROUS SITUATION, AS I LOST 95% OF MY BREAKING POWER WHILE PULLING MY TRAVEL TRAILER.

• 12/17/2018· SERVICE BRAKES

  WHILE DRIVING AT SLOW SPEEDS, THE BRAKE PEDAL BECAME VERY HARD TO PUSH. THIS CAUSED THE TRUCK TO BE DIFFICULT TO STOP, WHICH CAUSED ME TO ALMOST REAR-END THE VEHICLE IN FRONT OF ME. THIS HAS HAPPENED SEVERAL TIMES. IN RESPONSE TO THIS, THE GMC DEALER REPLACED THE VACUUM PUMP.

• 12/16/2015· STEERING

  STEERING WHEEL AND TRUCK VIBRATES/SHAKES AND VARIOUS SPEEDS.

• 12/15/2024· POWER TRAIN

  On 12/11/24 I had exited I95N, While traveling down the exit ramp I felt my truck buck, upon the light changing I went to accelerate and the truck transmission slipped and barely got into first gear. I again came to another traffic light and the transmission did the same thing. I put my hazard lights on and shifted through all the gears and finally I was able to get the truck moving. The following morning I brought the truck to my local mechanic and I was told I needed a new transmission, which is going to cost me $4400. About a year prior my daughter had a similar problem with her 2018 Chevy Silverado in which she had to replace the transmission valve body. With both of these occurrences the truck gives you no warnings and just stops driving and causes a real threat to safety.

• 12/14/2020· STRUCTURE,SEATS,UNKNOWN OR OTHER

  THE VEHICLE ALWAYS HAS A SMELL OF DAMPNESS AFTER A RAIN. SOMEHOW WATER IS GETTING INTO THE VEHICLE. I HAVE REPLACED THE SEAL AROUND THE THIRD-BRAKE LIGHT WHICH WAS THOUGHT TO BE THE CULPRIT, BUT NO FIX. THE REAR SEAT METAL HAS RUST ON THEM FROM THE DAMP. THE DRIVER'S SEAT CREAKS WHEN MAKING TURNS. IT IS LIKE IT ABOUT TO COME APART. THERE SHOULD BE A RECALL ON THIS. PEOPLE COULD GET HURT IF IT HAPPENS. LE UNDER THE VEHICLE, I NOTICED THAT A BODY-MOUNT IS MISSING UNDER THE DRIVER'S SIDE. THIS COULD BE THE REASONS FOR THE CREAKING. I AM NOT SURE!

• 12/14/2020· POWER TRAIN

  THE VEHICLE IS STUCK IN 4WD HI EVEN THOUGH THE INDICATOR IS SET TO 2WD. WHEN TURNING AT LOW SPEEDFS THE VEHICLE APPLIES THE REAR BRAKES. THE BRAKES DO NOT APPLY WHEN DRIVING STRAIGHT, ONLY WHEN TURNING AT LOW SPEEDS. IT IS DANGEROUS WHEN ATTEMPTING TO MAKE TURNS FROM STOPS OR PARKING.

• 12/13/2023· UNKNOWN OR OTHER

  The truck has only 122, 230 miles and shuddering in the transmission is horrible. I just purchased the truck 3 weeks ago and the owner stated nothing was wrong with it. However I took it to mechanic for inspection after purchase and he stated transmission has shuddering. I noticed at 40 miles plus the truck vibrates at steering wheel.

• 12/13/2023· VEHICLE SPEED CONTROL,SERVICE BRAKES,ENGINE

  Rainy road, 60mph on the hw with my family. Truck decides to engage stabilitrak or something to that feel and locked up the brakes. Talk about a scary moment with an 18 wheeler coming in hot behind you. Obviously, in the moment, I had no clue what was happening other than something with the truck was malfunctioning. This scenario could have gone wrong in so many ways. I'm honestly in shock someone has not been killed because of this?

• 12/13/2018· SERVICE BRAKES

  WHEN BACKING UP, AFTER REPEATEDLY PRESSING THE BRAKE PEDAL, THE BRAKE PEDAL WENT TO THE FLOOR AND WOULD NOT STOP THE TRUCK. THE TRUCK ROLLED UNCONTROLLABLY DOWN THE DRIVEWAY AND LUCKILY DID NOT HIT ANYONE OR ANYTHING. IT COULD HAVE KILLED SOMEONE THOUGH. THE SAME ISSUE OCCURRED IN A PARKING LOT WHEN BACKING UP IN AN OPEN SPACE. AFTER REPEATED HITTING THE BRAKE PEDAL TO LINE UP THE VEHICLE, THE BRAKES STOPPED WORKING AN I COULD NO LONGER STOP THE TRUCK.

• 12/13/2018· VISIBILITY/WIPERCrash

  HEADLIGHTS - LOW ARE DIM AND NOT MUCH SIDE VISIBILITY. TRAVELING ON RURAL BACK ROADS AT NIGHT IS DANGEROUS. DEER WALKED OUT IN ROAD AND I WAS NOT ABLE TO SEE IN TIME. SECOND DEER I HIT WITH THIS TRUCK, ONLY HIT ONE OTHER DEER IN MY LIFE.

• 12/12/2018· SERVICE BRAKES, HYDRAULIC,SERVICE BRAKES

  TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING 15-25 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT WAS DIFFICULT TO SLOW DOWN OR STOP THE VEHICLE EFFICIENTLY. THE CONTACT STATED THAT THE BRAKE PEDAL WAS VERY STIFF. THE VEHICLE WAS TAKEN TO KUNES COUNTRY CHEVROLET BUICK GMC OF ELKHORN (LOCATED AT 1350 WI-67, ELKHORN, WI 53121, (262) 725-4068) WHERE IT WAS DIAGNOSED THAT THE VACUUM PUMP WAS WEAK. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 68,800. *TT CONSUMER STATED VEHICLE WAS REPAIRED. *JB

• 12/12/2017· SERVICE BRAKES

  BRAKES BECAME HARD TO DEPRESS AND ENGAGE WHILE VEHICLE WAS MOVING. ALMOST CRASHED VEHICLE. AFRAID TO DRIVE. BROUGHT TO DEALER. SAID IT WAS BAD BRAKE BOOSTER. AFTER DOING SOME RESEARCH, FOUND OUT SHOULD REPLACE VACUME PUMP, MASTER CYLINDER, HOSE LINE, ETC., SO I DID. 44K MILES, 3 YEAR OLD TRUCK, HAPPENED ON /12/10/17 BROUGHT TO DEALER GARBER GMC IN FLORIDA FOR $1300 REPAIR ON 12/11/2017. NO WARNING SIGNS WHEN THIS HAPPENED. VERY DANGEROUS WHEN BRAKES FAIL WHILE VEHICLE IS IN MOTION.

• 12/11/2018· SERVICE BRAKES

  FAILURE OF THE BELT DRIVEN VACUUM PUMP WHILE DRIVING CAUSING VERY HARD BRAKING AND ALMOST CAUSED AN ACCIDENT. VACUUM PRESSURE DROPPED OFF AND CAUSED THE PEDAL TO BECOME FIRM. LUCKILY AFTER IT WAS INSPECTED FOR REPAIR THERE WASN'T OIL CONTAMINATION IN THE VACUUM LINE OR BRAKE BOOSTER SO THOSE DID NOT HAVE TO BE REPLACED.

• 12/10/2019· FUEL/PROPULSION SYSTEM

  WHEN DRIVING ABOUT 40 TO 50 MPH THE TRUCK SHAKES LIKE IT HAS A BAD CV JOINT ON YOUR DRIVESHAFT AND WHEN I BOUGHT THE TRUCK I TOOK IT IN FOR THIS PROBLEM AND THE DEALER SAID IT'S NORMAL DUE TO ENGINE SHUTDOWN OF CYLINDERS. SO I LIVED WITH IT WHEN MY WARRANTY RAN OUT I GOT A CHECK ENGINE LIGHT DUE TO SAME PROBLEM BUT NOW THE DEALER SAID I NEED NEW FUEL INJECTORS ALL OF THEM ARE BAD PER DEALER AND TO REPLACE WAS 1500 DOLLARS. I FEEL THIS WAS ORIGINAL ISSUE AND WANT TO SEE IF OTHER CUSTOMERS ARE GETTING SAME BAD ISSUES

• 12/09/2021· ELECTRICAL SYSTEM,UNKNOWN OR OTHER

  My back window just made a loud pop sound. I have a back window that had an electic sliding widow. Which means the back window is in 3 sections (driver side, middle sliding window, and passenger side). The driver side of the back window was completely shattered. It's hard to see from the outside but from the inside it is spider cracked everywhere. I believe that I had my rear defrost on at the same time. Nothing hit my window to cause this.

• 12/09/2016· EXTERIOR LIGHTING

  THE HEADLIGHTS IN THIS VEHICLE ARE UNSAFE. THE ARE DIM AND ONLY PROJECT OUT A SHORT DISTANCE AND VERY LITTLE TO THE PERIPHERY. THERE IS ALSO A DARK LINE IN THE FIELD OF VIEW WHERE ABOVE IT IS DARK AND BELOW IS DULL LIGHT. I HAVE CONTACTED MY LOCAL GM DEALERSHIP AND THE SOLUTION WAS TO UPGRADE THE LIGHT BULBS WHICH THEY DID. THE PROBLEM STILL EXISTS. I ESCALATED IT TO GM CUSTOMER SERVICE AND THEY TELL ME THERE IS NOTHING THEY CAN DO. THIS IS A VERY UNSAFE CONDITION.

• 12/09/2016· EXTERIOR LIGHTING

  HEADLIGHTS ON THIS VEHICLE ARE USELESS,CAN'T SEE DRIVING AT NIGHT AND ALWAYS FEEL LIKE I'M OVERDRIVING THE LIGHTS EVEN THOUGH I'M NOT EVEN AT THE SPEED LIMIT! *TR

• 12/08/2025· ENGINE

  The GMC Sierra 1500 started a knocking sound. The collapsed lifter on a AFM cylinder bent a push rod which led to cam failure. Metal fragments are throughout the oil system.

• 12/08/2020· POWER TRAIN

  VEHICLE SEEMS TO BE STUCK IN 4WD, UNABLE TO SWITCH OUT OF IT. CANNOT TURN VEHICLE.

• 12/08/2018· POWER TRAIN

  WHEN ACCELERATING TRUCK WILL SAG AND OR HESITATE. WHEN YOU SLOW DOWN AND TRY TO SPEED UP THE TRUCK WILL HESITATE FOR 5 OR MORE SEC. BEFORE SPEED BACK UP GM SAID THAT THIS IS DUE TO ZERO TORQUE TO ME THIS IS A SAFETY HAZARD

• 12/08/2017· SERVICE BRAKES

  I WAS PULLING INTO A PARKING SPOT AT WORK (SLOW SPEED) AND I COULD NOT STOP THE TRUCK. I KEPT APPLYING MORE AND MORE PRESSURE TO THE BRAKE PEDAL AND IT DID NOT STOP THE TRUCK. THE TRUCK HIT THE CURB AND STOPPED, LUCKILY THERE WASN'T A ANOTHER CAR AS I WOULD HAVE HIT IT. IT CAUGHT ME A BIT OFF GUARD AS I WAS TRYING TO FIGURE OUT WHAT JUST HAPPENED. I BACKED THE TRUCK UP ABOUT 10 FEET, BRAKES WORKED FINE IN REVERSE, AND PULLED FORWARD BACK INTO THE SPOT. AGAIN, THE BRAKES DID NOT WORK AND I AGAIN I HIT THE CURB. NO DAMAGE TO THE TRUCK, BUT BRAKES DID NOT WORK. IT FELT LIKE THE BRAKES WERE PUSHED BACK AGAINST ME. BRAKE PEDAL NEVER WENT TO THE FLOOR, I PUSHED THE PEDAL AND THERE SEEMED TO BE MORE RESISTANCE THAN NORMAL. IT DIDN'T MATTER HOW MUCH I PUSHED, THE TRUCK KEPT MOVING FORWARD. THIS HAPPENED WITH APPROXIMATELY 78,000 MILES. I WAS LATE FOR A MEETING SO I WENT INTO WORK AND LATER IN THE DAY I HAD A BREAK SO I CHECKED ON THE TRUCK. PULLED OUT OF THE PARKING SPOT AND BACK IN AND BRAKES WORKED BOTH IN REVERSE AND IN FORWARD. SO NOW WHAT TO DO????????? AT WORK I DID A QUICK GOOGLE SEARCH AND SAW THIS SIMILAR ISSUE COME UP IN A LOT OF THE SEARCH RESPONSES- AND DECIDED TO LOG IT HERE. THIS IS A HUGE ISSUE AND VERY DANGEROUS IF I WAS IN A CROWD OR PEOPLE OR AT AN INTERSECTION AND COULDN'T STOP. I CALLED GMC AND THEY SAID THEY NEVER HEARD OF ANYTHING LIKE THIS- THEY DIDN'T SEEM TO CARE, THEY SAID IF I BROUGHT THE TRUCK IN THEY WOULD SEE IF IT HAPPENED AGAIN.