2014 GMC Sierra 1500 Problems

Truck shut off and would not turn back on. Negative battery cable so hot it burned skin off. Would not start, tried to start clicking sound, radio blipped for a moment.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving approximately 25-30 MPH, the power steering became inoperable. The check engine warning light was illuminated due to the fuel tank cap being missing. The contact stated that the failure was related to NHTSA Campaign Number: 14V246000 (Steering). The vehicle was taken to the local dealer, where it was diagnosed with a short in the steering gear. The vehicle was not repaired. The manufacturer was contacted and confirmed that the VIN was not under recall. The failure mileage was approximately 130,000.

The contact owns a 2014 GMC Sierra 1500. The contact stated that the headlights were dim, reducing the contact's ability to see the roadway while driving. The dealer was notified of the failure and provided an estimate for the headlights' replacement. Additionally, the contact stated that the vehicle was experiencing excessive oil consumption, and there was smoke coming out of the exhaust pipes intermittently. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 370,000.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while her husband was driving at various speeds, the front headlights failed to function as intended. The contact stated that the headlights were dim and foggy. The failure limited the driver's visibility, preventing the driver from safely operating the vehicle. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure recurred, and the contact was no longer driving the vehicle at night due to the safety concern. The failure mileage was unknown.

The vacuum pump has been recalled on same year, make and model vehicle, yet my particular VIN is falling to the wayside. IT HAS A VACUUM PUMP issue, causing the brakes to malfunction at slower rates of speed. A "computer programming recall" was applied to my VIN however it is the ACTUAL Vacuum pump that is the problem. This should have been covered in all year, make and models. BRAKES ARE IMPORTANT! Reprogramming did not solve the vacuum pump issue that is causing the brakes to fail! This is absolute negligence on behalf of General Motors.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. No warning lights were illuminated. The contact stated that the brake pedal was depressed to the floorboard. The failure also persisted while driving downhill. The vehicle was taken to an independent mechanic. The contact was provided information for NHTSA Campaign Number: 19V645000 (SERVICE BRAKES, HYDRAULIC). The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired. The contact was informed that the manufacturer had closed the warranty, because the vehicle exceeded 100,000 miles. The manufacturer was not made aware of the failure. The failure mileage was approximately 156,000.

Truck shut off and would not turn back on. Negative battery cable so hot it burned skin off. Would not start, tried to start clicking sound, radio blipped for a moment.

Starter went out and needed replaced. I know there is a recall on other models in the same year and mode;l but mine wasnt listed.

The contact owns 2014 GMC Sierra 1500. The contact software modification done at a transmission shop, affected the Active Fuel Management not allowing diagnostic. The manufacturer was not notified of the failure. The approximate failure mileage was 210,000

6.2L Engine has well documneted problem with the valvetrane, I have had to fix it 2 times in 3 months. I have pictures and documents from servicing dealerships. Since my ownership, it has always been dealer-serviced. Unexpected catastrophic engine failure, which happened on a major interstate. GM service technicians know there is a valvetrane issue. This instance, the warning light came on under and overpass, and the truck coasted to a stop just past the end of the on-ramp. A GM (Chevrolet dealership currently has it) and a GMC dealership has serviced it since my ownership.

During a turn in the parking lot my vehicle would not allow me to turn something with traction control came up on the screen. The past few days the car got stuck at 0 rpms while driving and did not feel I had adequate power and other times has stalled.

The contact owns a 2014 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the vehicle lost power steering functionality, with the stabili-trak warning light illuminated. In addition, the contact stated that the vehicle had since lost steering functionality. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximate 207,900.

I am experiencing ongoing issues with the 6L80E transmission that have significantly affected the performance and reliability of my vehicle. The transmission shifts harshly between gears, hesitates when accelerating, and occasionally slips before engaging. There is also a noticeable shudder during acceleration and inconsistent shifting, especially at lower speeds. These problems have become more frequent over time and raise concerns about the safety and dependability of the vehicle. The transmission does not operate as expected for normal driving conditions, and the issues negatively impact the overall driving experience. I am requesting a thorough inspection of the transmission, an explanation of the cause of these issues, and an appropriate repair or resolution to restore the vehicle to proper working condition.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving downhill, the vehicle failed to accelerate as intended while depressing the accelerator pedal. In addition, the vehicle felt as if it were in neutral. The tachometer gauge revved up independently. No warning lights were illuminated. The contact pulled to the side of the road. The contact opened the front hood and noticed that one of the transmission lines had failed. The vehicle was towed to the residence. The contact replaced the hose and filled up the transmission reservoir. The contact stated that the failure persisted. The vehicle was taken to a specialty transmission place and rebuilt the transmission. The vehicle was repaired. The contact stated that a few months later the failure persisted. The vehicle was towed to the specialty shop, and the transmission was replaced. The contact stated that a few months later, while driving at an undisclosed speed, an abnormal odor was emitting from the front end of the vehicle. The contact was able to pull to a rest area, and when the front hood was open, the contact noticed that one of the transmission lines had a leak and transmission oil was being sprayed all over. The contact was able to replace the transmission hose. The manufacturer was not made aware of the failure. The failure mileage was unknown.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving approximately 45 MPH, the vehicle drove over a slight bump in the road. The contact stated that the vehicle bounced, and then there was an abnormal banging sound coming from the rear of the vehicle. The contact recently had work completed on the exhaust system. The contact took the vehicle back to the independent mechanic who had performed the exhaust repair. The mechanic raised the vehicle on the lift and became aware that the rear passenger’s and driver's side cross members, supports for the shock absorbers, and the rear sub frame had extensive corrosion. The contact was advised by the mechanic that the banging sound was coming from the shock absorbers striking the bed of the truck while driving over the bump in the roadway. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 78,569.

The vehicle’s frame has severely rusted to the point of structural compromise. My certified mechanic determined on December 10, 2024, that the frame could not pass the state safety inspection due to advanced corrosion. Welding is now required to restore structural integrity. The truck has remained inoperable and sidelined since that date. The frame is available for inspection upon request, and I have photos, repair invoices, and a mechanic’s written evaluation. This same frame was previously reworked by GMC twice: May 7, 2018 – Frame treated for premature rust. November 4, 2019 – Frame recoated after prior treatment failed due to improper descaling. Despite these reworks under GMC direction, the issue has progressed to a dangerous level. The structural integrity of the frame is compromised. A severely rusted frame puts occupants and others on the road at risk in the event of a collision, towing, or even regular driving. A weakened frame could lead to loss of vehicle control, failure to protect occupants in a crash, or catastrophic breakage of suspension or driveline components while in motion. Yes. The problem has been confirmed by an independent certified mechanic, who inspected the frame and advised that the rust is beyond surface level and requires welding to repair. They refused to weld during winter due to safety concerns and advised that the truck could not be driven or pass inspection in its current state. The vehicle was previously serviced under GMC’s direction in 2018 and 2019 by a GMC dealer (Weird GMC) to address early frame corrosion. However, the current failure has not yet been inspected by GMC directly since becoming undriveable in late 2024. I have reached out to GMC Customer Assistance and am awaiting a response. There were no dashboard warning lights or alerts for this issue. The only indications were visible signs of rust, which rapidly worsened after the 2019 rework. My mechanic noted signs of significant corrosion during routine servicing

hard shifting transmission and fluid smells burnt, shifts hard in the lower gears and reverse

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving approximately 45 MPH, the vehicle drove over a slight bump in the road. The contact stated that the vehicle bounced, and then there was an abnormal banging sound coming from the rear of the vehicle. The contact recently had work completed on the exhaust system. The contact took the vehicle back to the independent mechanic who had performed the exhaust repair. The mechanic raised the vehicle on the lift and became aware that the rear passenger’s and driver's side cross members, supports for the shock absorbers, and the rear sub frame had extensive corrosion. The contact was advised by the mechanic that the banging sound was coming from the shock absorbers striking the bed of the truck while driving over the bump in the roadway. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 78,569.

The passenger presence module does not work. The deal said if it was involved in a crash there would be a possibility the airbag on the passenger side would not go off because it can't register if someone is sitting in the seat or not.

I have a scan tool and it says my brake recall is unfinished. But website says it has been fixed. My brakes are terrible and keep getting service brakes airbag and stabilitrack. The download they used when I took in for the recall was not finished

The contact owns a 2014 GMC Sierra 1500. While the contact's husband was driving at an undisclosed speed, the contact became aware that there was smoke coming from the rear window and the window shattered. The contact stated that the defroster was operating during the failure. The contact stated that the shattered glass had fallen on the contact's minor son, who was seated in the rear seat. The son had not sustained any injuries. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure. The contact was informed that the repair was previously performed and covered under the warranty. The contact was informed that the current repair was not covered under warranty. The contact was advised to contact the NHTSA Hotline to report the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 156,800.

The contact owns a 2014 GMC Sierra 1500. The contact stated while driving approximately 35 MPH, the air conditioning system was activated however, there was no air circulation. The contact stated that the failure of the HVAC system caused the defogger and defroster functions to be inoperable. The contact stated that due to the failure of the HVAC system to properly defrost the windows, the visibility was reduced while driving. The vehicle was taken to the local dealer to be diagnosed and the contact was informed of a leak in the condenser. The vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 55,300. The consumer stated the defrost and defogger are not inoperable, but performance is degraded. The repairs were completed by Suttle Motor Corporation on March 28, 2022.

On my 2014 GMC, the front driver side seatbelt was not latching. We had to finagle to latch it. To which this point we were unsure that we were safe. So I brought the GMC to the GMC Rosedale dealership and after further investigation they charge me $522 to repair replace the belt. I told them it’s a safety issue, but they seem not to care, I also contacted GMC corporate and they are investigating this. So if it state law that you have to wear a seatbelt for your safety, why do dealerships charge you to repair or replace them.?

NHTSA Campaign ID 21V245000 Truck is issuing a service air bag alarm, was my truck given wrong part on original recall. Purchased 2 months ago

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving 30-40 MPH, the vehicle lost motive power, and RPM became raised. There was no warning light illuminated. The vehicle was taken to an independent mechanic, and was diagnosed with lower and upper fuel pump failure. The contact was informed that the lower and upper fuel pumps needed to be replaced. The independent mechanic made the contact aware of TSB Number: 13370A (Fuel Pump). The vehicle was not repaired. The manufacturer was notified of the failure and the TSB; however, the VIN was not included. The manufacturer opened a case. The approximate failure mileage was 105,000.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving approximately 25-30 MPH, the power steering became inoperable. The check engine warning light was illuminated due to the fuel tank cap being missing. The contact stated that the failure was related to NHTSA Campaign Number: 14V246000 (Steering). The vehicle was taken to the local dealer, where it was diagnosed with a short in the steering gear. The vehicle was not repaired. The manufacturer was contacted and confirmed that the VIN was not under recall. The failure mileage was approximately 130,000.

It turned off while driving on freeway I immediately put on N and start back up. It also pulls back as I’m driving normal 35mph. My Rpm gaug goes up to 3 while driving down hill and locks

TOOK THE TRUCK TO GET A DIAGNOSTIC CHECK DUE TO THE TRUCK IN DRIVEWAY WOULD NOT GO INTO REVERSE SO HUSBAND PUT IT IN DRIVE TO PULL UP A LITTLE TO SEE IF IT WOULD HELP TO THEN GO INTO REVERSE, INSTEAD, THE TRUCK JERKED SO HARD & ALMOST THREW MY HUSBAND & SON INTO THE GARAGE DOOR THAT MORNING. HUSBAND & SON CAME BACK IN ALL SHOOK UP. THE SCAN DIAGNOSTIC CODE-CHCK SHOWED: TRANS FLUID-INDEED FULL; BUT WAY BURNT; NEEDS TRANSMISSION; FRONT PUMP MAKING NOISE IN TRANSMISSION; TORQUE CONVERTER; EXHAUST SHOWS SIGNS OF BACK PRESSURE-AND ONE RUNNING HOTTER THAN THE OTHER; THE LEFT SIDE RUNNING 100+ HOTTER THAN THE RIGHT - NEEDS TRANSMISSION ASSEMBLY REMOVED & REPAIRED; REMAN GM TRANS; Y-PIPE W/BOTH CONVERTERS; FLUIDS FLUSH NUTS BOLT GASKETS. I WAS TOLD IT WOULD NOT BE A GOOD IDEA TO DRIVE IT. I AM RETIRED MILITARY AND MAINTAINED THE TRUCK THROUGHOUT MY MILITARY CAREER, BUT NO WARNINGS SHOWED ON THE DASH READER FOR SOMETHING WRONG WITH TRANSMISSION. IT IS A 2014 GMC SIERRA 1500 SLT 5.3L V8. VIN#[XXX]. NEED HELP IF THIS ISSUE HAS EVER BEEN PLACED ON THE RECALL LIST? IF NOT, IT SHOULD BE. THIS ISSUE COULD KILL SOMEONE IF IT WERE TO JERK WHILE DRIVING ON THE ROAD. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

HAD THE HEATED SEATS TURNED ON ONE DAY, ALL OF A SUDED FELT A REALLY HOT SENSATION ON MY LOWER BACK. I TURNED THEM OFF THOUGHT IT WAS JUST GETT TO HOT. GOT IN THE TRUCK A COUPLE OF DAYS LATER. THE HEATED SEAT ELEMENT BURNED A HOLE RIGHT THRU THE LEATHER, EVEN MELTED A SPOT ON MY SWEATER. DEALER SAID THEY HAVE NEVER HEARD OF THIS ISSUE ONLY $800 FOR NEW COVERS AND HEAT ELEMENTS. MY BROTHER HAS A SILVERRODO SAME YEAR, HIS HEATED SEATS STOPED WORKING ALL READY ALSO.

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING 35 MPH, THE FRONT DRIVER AND PASSENGER SEATS BECAME LOOSE AND BEGAN TO SHIFT INDEPENDENTLY. THE CONTACT COULD SMELL RADIATOR FLUID DUE TO THE FACT THAT THE RADIATOR CRACKED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE RADIATOR WAS CRACKED AND NEEDED TO BE REPAIRED. THE RADIATOR WAS REPAIRED. THE MANUFACTURER WAS MADE OF AWARE OF THE ISSUE AND STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER 14V446000 (SEATS). THE APPROXIMATE FAILURE MILEAGE WAS 50,000.

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500 EQUIPPED WITH MICHELIN LATITUDE TOUR HP TIRES, SIZE: P275/60R20 (NA). WHILE THE CONTACT WAS WASHING THE VEHICLE, HE NOTICED THAT THE TIRE THREADS WERE SEPARATING WITHOUT WARNING. THE VEHICLE WAS TAKEN TO BELLE TIRE (39999 VAN DYKE AVE, STERLING HEIGHTS, MI 48313, (586) 541-1130) WHERE IT WAS DIAGNOSED THAT THE TIRES HAD PREMATURE WEAR AND NEEDED TO BE REPLACED. THE TIRES WERE NOT REPLACED. THE TIRE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE FAILURE MILEAGE WAS APPROXIMATELY 65,000 AND THE TIRE FAILURE MILEAGE WAS 22,000. THE VIN WAS UNKNOWN.

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE THE VEHICLE WAS IN THE PARK POSITION, THE FOUR WHEEL DRIVE SERVICE LIGHT ILLUMINATED WITHOUT WARNING. THE CONTACT WAS UNABLE TO DISABLE THE FOUR WHEEL DRIVE. THE VEHICLE WAS TAKEN TO BE DIAGNOSED BY A DEALER, BUT THE ISSUE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 20,000.

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING AT UNKNOWN SPEEDS, THE AIR CONDITIONER UNIT BLEW OUT HOT AIR THROUGH THE VENTS. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (BECKER BUICK GMC INC, 636 EAST SPRAGUE AVE, SPOKANE, WA 99202) WHERE IT WAS DIAGNOSED THAT THE AIR CONDENSER UNIT NEEDED TO BE REPLACED. THE FREON HAD LEAKED OUT OF THE COMPARTMENT. THE CONTACT WAS INFORMED THAT THE PARTS WERE ON BACKORDER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND OPENED CASE NUMBER: [XXX]. THE FAILURE MILEAGE WAS 44,127. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TT