GMC Sierra Complaints (2019)

729 consumer complaints on file.

#11627438November 26, 2024
AIR BAGS, POWER TRAIN
Issue 1: Driver side front seat airbag connector separated disabling the airbag. (repaired at my cost) Issue 2: Transmission (10 speed auto) developed stutter and skip consistent with complaints resulting in recall of 2020 (next model year truck) due to risk of rear wheel lock up. GM needs to include the 2019 models that were built as 2019 (as 2020) in one of the plants while they continued to build the 2018 as 2018 "classics" during the changeover. My cost to repair will be $3600 and there is not guarantee that the new valve body is any better or if GM is simply giving me another 46k miles to wait for another failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626850November 22, 2024
POWER TRAIN, WHEELS
My end of year 2019 produced GMC Sierra 1500 5.3 V8, 4WD X31 4 door truck had a serious malfunction that could have caused great harm. I was driving down my driveway at approximately 20 mph when the truck's rear wheels locked up, stopping the truck instantly, sending me into the steering wheel narrowly missing the windshield with my face. After a moment, I attempted to drive again to move the truck out of the travel path. When I did, the truck back wheels completely locked up again (when I reached 6mph). I had the truck towed to my local shop and was told that it was the transmission locking up making the wheels lock up. The part (transmission) that was ordered for repair was on national backorder and took over two months to get my truck repaired and functional again. I was fortunate to have a warranty (now expired) and pay a percentage of the repair fee, however, the total repair fee was near 12,000. This was paid for by myself and my warranty company. Considering the part was on national backorder, I know that these types of problems are occurring with many of these trucks. I learned of the recall for this same problem that my truck had and checked the recall for my vin. To my complete surprise, my truck was not listed as being recalled, even though the EXACT same problem occurred with my truck. I would like to get the cost of the repairs refunded considering it took GM so long to recall the problem leaving me to pay for their errors. This is not a cheap automobile and was expected to be built well. I am very fortunate that I was not on a major highway or traveling at a high rate of speed when this happened. It was a very scary ordeal being propelled into the windshield of your vehicle when driving due to abrupt, extremely unusual 100% mechanical failure of no fault of your own. This recall should be expanded to include ALL vehicles that have the faulty transmission, including mine. Repair receipts can be provided. I appreciate your time and consideration.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626464November 20, 2024
POWER TRAIN
When the transmission downshifts the rear wheels lock up and the truck skids out of control. I have to be very careful with gas pedal pressure to not allow the transmission to downshift by 2 or more gears. This is virtually impossible in mountain terrain, where I visit routinely.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626142November 19, 2024
SERVICE BRAKES
The antilock braking system is not functioning properly. The sensor for the anti-lock brake control pump module is defective
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11624141November 8, 2024
POWER TRAIN
The contact owns a 2019 GMC Sierra. The contact stated that while shifting gear, there was an abnormally loud banging sound coming from the vehicle. The vehicle failed to shift into gear properly. The wheels were slipping and pulling while driving at various speeds. While driving on the road, there was an abnormal rumbling sound. There were no warning lights illuminated. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The vehicle was taken to another local dealer, Joe Ball GMC (1750 William Flinn Hwy., Glenshaw, PA 15116); to be diagnosed. The contact was informed that the transmission needed to be drained and flushed. The dealer informed the contact to drive for 200 miles. The dealer also recommended replacing the transmission. The vehicle was repaired, but the failure recurred. The manufacturer was contacted and referred to the NHTSA Hotline. The approximate failure mileage was 30,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11622052October 26, 2024
ENGINE
While driving the transmission lurches forward when I give it gas after slowing down or when I come to a complete stop. Also it makes a shuddering type noise randomly when driving and it feels like the truck is about to shut off. These issues happen on multiple occasions.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11621072October 21, 2024
ENGINE
Oil line separates causing massive oil leak causing engine to fail
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11620859October 20, 2024
UNKNOWN OR OTHER
Rear sliding window has a leak. While washing the vehicle or if it rains, water penetrates threw the window and into the inside headliner causing water stains and mold. Water also runs down the inside of the back window to the floor carpet, also creates water stains and mold. General Motors has a Bulletin 18-NA-383, Which does not fix the problem, but only puts a temporary patch. The permanent fix would be to replace the whole window.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11620902October 20, 2024
FUEL/PROPULSION SYSTEM
Bought the vehicle new in 2019 currently at a dealership to have the third in tank electric fuel pump installed. When it was in the shop for the second fuel pump installation the technician informed me that the pump can go out at any time causing a potential accident. Fortunately truck wouldn’t start and was diagnosed at dealership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11619152October 10, 2024
FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE
The contact owns a 2019 GMC Sierra 2500. The contact stated while driving 10 MPH, the vehicle lost motive power and stalled and shut off independently. The vehicle was towed to a dealer and was diagnosed, and it was determined that the fuel pump control module needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 33,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11618214October 5, 2024
FUEL/PROPULSION SYSTEM
On [XXX] at approximately 2 pm the 2019 GMC Sierra 1500 AT4 (with 6.2 gas motor) motor died while I was driving in traffic. Incident #1 - The vehicle started sputtering and died - no alerts on dash until after the truck died - an empty fuel tank symbol briefly lit up on dash that led me to suspect a fuel pump issue as the fuel tank was full. Safety issue = vehicle failure with no warning in traffic putting occupants in risk. The vehicle would not start and was towed to the GMC dealer where I had purchased the vehicle. Incident #2, the 2019 GMC Sierra 1500 AT4 has an electronic gear shifter and will not go into neutral unless engine is running - problem as needed tow as not able to crank yet struggled to get towed as transmission will not go into neutral - apparently dealer has special tool to put 2019 GMC Sierra into neutral that is not available to consumer. Service department at dealer - Childre GMC in Milledgeville GA - contacted me on September 25, 2024 and stated 2019 GMC Sierra 1500 AT4 needs a Fuel Pump Control Module part number 13565641 but the part is not available in the GM system and may take weeks or months for part to arrive. Apparently, there are other GM trucks at this dealership waiting same part (appears to be a national issue not just a one time issue). Dealer gave me a GMC customer service number to call. I called GMC customer service on September 25, 2024 and registered a complaint that no parts are available to fix my car. Neither the selling dealer or GM customer service offered any relief with a loaner or rental car. Internet searches on forums focused on new GMC/Chevrolet trucks confirm that multiple consumers have this issue with the Fuel Pump Control Module and that GM cannot supply the repair part. The part is not available on the secondary supply chain like AutoZone, Oreilly, or similar. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11617810October 3, 2024
ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM
The contact owns a 2019 GMC Sierra 2500. The contact stated while driving at various speeds, the vehicle lost motive power. The coolant fan seized and failed to operate as needed. There were no warning lights illuminated. The vehicle was towed to the local dealer to be diagnosed. The contact was informed that the check engine warning light was illuminated, and the knock sensor, coolant fan clutch, injector #6, and unstated wiring harness needed to be replaced. The dealer informed the contact that the parts to repair the vehicle were on back order. The vehicle was not repaired. The manufacturer was contacted and opened a case, but no additional assistance was provided. The failure mileage was approximately 87,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11617659October 2, 2024
STEERING, SERVICE BRAKES, POWER TRAIN
Truck showed check engine light and popup message to Service ESC, vehicle disable traction control. Before being able to have the vehicle scanned for error codes (after sitting parked turned off for a while, all errors cleared. Several days later when turning vehicle on traction control warning light, parking break warning light, and stability control warning light all turned on, service ESC message popped up again, PRNDL position indicator light turned off and vehicle began to have a clicking noise in the steering column when break was pressed. There is a multiple year long thread on this topic on the silveradosierra forum entitled "service-esc-and-service-power-steering" it appears that dealer and GM help are limited and the issue often goes away and recurs.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11616907September 27, 2024
ENGINE
2019 GMC SIERRA 1500, Fuel Injectors. This was a recall back in April of 2021. My vin is not on the recall list but am having the same problems. While driving the check engine light came on alone with no power check abs system and parking brake.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11615958September 23, 2024
ELECTRICAL SYSTEM, VISIBILITY/WIPER, LANE DEPARTURE: BLIND SPOT DETECTION
Rear window leaks as also reported by GM when truck was manufactured (GM Service Bulletin 18-NA-383). Water from leaking rear window gets into the electronics used for safety systems as well as rear camera and eventually disables safety systems.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11615204September 18, 2024
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
While driving the vehicle caught engine fire later exploding within seconds.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11615059September 17, 2024
LATCHES/LOCKS/LINKAGES:HATCHBACK/LIFTGATE:LOCK
The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at various speeds, the tailgate independently opened. There was no warning light illuminated. The vehicle was taken to a dealer where the failure was acknowledged, and the contact was informed that the vehicle was not covered under recall or warranty. The vehicle was repaired by the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 36,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11611971August 31, 2024
STEERING
While driving on the freeway the power steering lost it's power. There was so much resistance from the steering wheel it became almost impossible to control the vehicle. There was a notice on the info screen " power steering needs service. I was able to get the truck to a GMC dealer where a certified mechanic had to replace the steering gear motor. The truck has been lightly used and only has 35,070 miles on the odometer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11611446August 28, 2024
POWER TRAIN
The contact owns a 2019 GMC Sierra 1500. The contact stated while driving 40 MPH, the vehicle was vibrating and shaking abnormally. The contact pulled over to the side of the roadway and turned off and restarted the vehicle and the shaking ceased. The contact stated that the failure became a persistent failure. The vehicle was taken to a dealer and independent mechanic to be diagnosed. The contact was informed that the vehicle had experienced transmission failure however, the vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 84,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11610916August 26, 2024
FUEL/PROPULSION SYSTEM
The Fuel pump power control module failed. The part is currently at the nearby Chevy dealership. The safety of myself and two passengers were compromised when the struck suddenly lost acceleration, then shortly after lost engine idle. This occurred while vehicle was in motion on a main highway leaving us stranded on the highway and no warning or indication was given. The problem was confirmed by a dealer. The vehicle and component were inspected by the dealership. There were no warning lamps, messages or symptoms prior to the part failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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