GMC Sierra Complaints (2019)

729 consumer complaints on file.

#11637036January 20, 2025
POWER TRAIN
The transmission is experiences periodic rough shifting, a shudder and droning noise between 1,000 and 1,500 RPM. An independent transmission specialty shop states the transmission is starting to fail. The transmission, differentials and transfer case fluids were changed at 53,000 miles and again at 104,000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636853January 19, 2025
ENGINE
Engine has a bearing failure. Just purchased the truck it started to tick so I was being proactive stopped driving the the truck to prevent lock up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636451January 17, 2025
ENGINE
Engine failure with no prior warning 11/21/2023. We were on the highway. Truck made some noises and hesitated and stalled within 2 minutes. Thankfully, there was an off ramp and we were able to roll into a gas station. Had it towed to a GMC dealer. GMC dealer confirmed engine was blown. Dealer confirmed it's a known issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636580January 17, 2025
ENGINE
My 2019 GMC Sierra AT4 - Driving home from work on the highway car lost sudden power, All engine notifications appeared on dash and a very loud screeching sound happened. Was able to pull it onto the side of the road barely. Diagnosis from nearby shop was a lifter failure in cylinder 5 causing metal shavings to lock crank up. Total engine replacement. Car has 122,000 miles and every oil change done at 3,000 miles by GMC service technician since new and documented. GMC offered nothing when notified about the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636586January 17, 2025
ENGINE
So August 29, 2023, at 46,000 miles, my engine failed completely with no warning or anything, while driving to work, was at the dealership until October 4th. Then December 10th, 2024 with 83,000 miles my engine failed again while my little brother and I were driving home late that night, on the highway at 70mph , suddenly losing power, causing us to be stranded on the side of the highway at 2am. Has been at the dealership since December 11th, with no eta in sight, and we're at 36 days and counting. A spac case was opened to escalate getting a part. This truck has been a problem and I want to get rid of it as its a safety hazard to myself, family members, and other on the road. GM customer service has also been giving me a runaround as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636589January 17, 2025
ENGINE
While driving the vehicle, had a sudden “thud” from the engine compartment and immediately started getting error messages on the dashboard. When the codes were pulled, it said a misfire from cylinder number 8. The initial shop it was taken to was unable to diagnose the problem and referred me to the dealership. Upon inspection at the dealership, they stated that the camshaft and all the lifters needed to be replaced. The vehicle is still at the dealership waiting for this to be done. Upon doing some research, I have found that lifter issues are a very common occurrence in these vehicles. I was reading this morning about the investigation that the NHTSA has started into issues with the L87 engine, which my vehicle has. If the investigation is concentrated on another issue, I would recommend that the lifter issue gets looked into as well. There is no reason that a vehicle with just over 100,000 miles and has had all the oil changes done on time, should suffer a failure like this that costs thousands so dollars to fix. I apologize for not including videos of the issue, I can’t save the ones that the dealership took. Please feel free to contact me if you need any further information or if I can be of further assistance. Thank you.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11635090January 9, 2025
POWER TRAIN
The contact owns a 2019 GMC Sierra 1500. The contact stated while driving at approximately 25 MPH, an abnormal sound was coming from under the floorboards. No warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the transmission oil pump had failed and the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 158,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634992January 8, 2025
POWER TRAIN
My truck has had two lifters fail at different times which ended up ruining the camshaft Now my truck feels like it’s going over a rumble strip on the highway at low rpm’s. During this speed the trans is slipping and can not pick a gear. Other gmcs had a service bulletine to change trans fluid but my did not. I have emailed twice to gm and have not heard anything back. I have close to 10000 in repairs and my truck has been down for 4 months.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634381January 6, 2025
BACK OVER PREVENTION
The contact owns a 2019 GMC Sierra 1500. The contact stated that while the vehicle was parked, the contact became aware that the rearview camera was inoperable. The contact stated that the image on the screen was blank. The vehicle was taken to the dealer where it was diagnosed and determined that the rearview camera module had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 56,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633622January 2, 2025
ENGINE
I was driving and my vehicle started to give me warnings to pull over due to low oil. When I safely pulled over and check. the engine oil cooling line was detached from crimp joint and leaked all the oil. Called the tow truck and took the truck to the dealer (Charles hardy chevrolet in Dallas GA) And they telling me that the engine is locked and it need to be replaced. There is a recall for the part but they telling me that my vin number is not part of it. Even though is exactly what the recall said it would happen
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633080December 30, 2024
STEERING
Incident 12/29/2024 while making a stop at a Stop sign while making a left turn steering wheel broke free with no resistance what so ever??? Turned off the vehicle opened the hood discovered the intermediate steering shafts had separated??? retaining bolt missing causing shafts to slip out of each other, putting my life & passenger's at high risk how this happened there is no explanation to this factory defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632770December 27, 2024
SUSPENSION:FRONT:CONTROL ARM:UPPER BALL JOINT
The contact owns a 2019 GMC Sierra 1500. The contact stated while driving at 10 MPH, the upper control arm and ball joint on the passenger’s side fractured, and the wheel partially detached from the vehicle and was sticking out. The vehicle was towed to an independent mechanic where it was diagnosed and the failure was confirmed; additionally, the driver’s side upper control arm and ball joint were also fractured. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mile was approximately 71,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632774December 27, 2024
VEHICLE SPEED CONTROL
The contact owns a 2019 GMC Sierra. The contact stated that while driving on the highway at 40 MPH the vehicle proceeded to jerk and shift into the lower gears, the vehicle's acceleration speed was reduced to 15 MPH. The service parking brake and the ESC light were illuminated. The contact proceeded to drive to their residence, whereupon parking the vehicle the contact proceeded to inspect the vehicle from outside, the contact noted that there was a distinct smell of something burning, and upon inspecting the rims of the vehicle they were very hot. The vehicle was taken to a local dealer where the vehicle was diagnosed the contact was advised that there was nothing to be found wrong with the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 58,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632450December 26, 2024
ENGINE AND ENGINE COOLING
The contact owns a 2019 GMC Sierra Denali. The contact stated that while driving at 30 mph, a "Turn off engine, No oil pressure" message appeared and was accompanied by a warning chime alert. The vehicle was steered to the side of the road and turned off. The contact then observed condensation leaking under the front of the vehicle and condensation in the street leading to the vehicle. The vehicle was towed to the dealer where it was diagnosed that the engine oil cooler line detached and the engine oil cooler lines needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and advised the contact to have NHTSA add his vehicle added to an unknown recall. The failure mileage was 77,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632000December 22, 2024
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
When accelerating it will over rev and then slip and then punch foward I had a diagnostic did and the sensor in the Transmission aren't working properly and then when just driving my etrak also randomly went out and I can no longer active cruise controll
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11631981December 21, 2024
POWER TRAIN
Subject: Potential Issue Related to Recall N202314870 for GMC Sierra 1500 Problem Description: I own a 2019 GMC Sierra AT4 (VIN# [XXX] ) and have identified a potential issue related to the drive shaft. Although my VIN does not appear in the official system as affected by recall N202314870, the vehicle exhibits the following symptoms: 1. Unusual and consistent vibrations in the drivetrain while the vehicle is in motion. 2. Noises coming from both the front and rear differentials. 3. Concern regarding the integrity of the drive shaft, as these issues align with the details described in the recall. Given that this issue potentially affects the safety of the vehicle, I kindly request a review to determine if my unit should be included in recall N202314870 or any other related campaign. I appreciate your consideration of these symptoms for a proper evaluation. 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
#11631675December 19, 2024
ENGINE
I have a 2019 gmc sierra 1500 elevation. The dash indicated low oil with 60lbs of oil pressure. I stop park my vehicle and see there is a puddle of oil underneath my truck. It appears to be leaking (extremely high flow rate) from the oil cooler lines where the rubber has given way from the metal crimping. Apparently after calling the dealership and reading online there isn't any type of recal for this issue even tho there is a Customer Satisfaction Program N212326940 implemented for Alaska and Canada due to the cold weather climate causing the failure. I live in western Pennsylvania and currently had a cold snap of 11°F. The dealership wants me to pay out of pocket and take my vehicle in to get diagnosed for service , which also means paying to have it towed to the dealership since it is un-drivable . Then pay for the very obvious service and file to see if I can be potentially reimbursed. This vehicle has less than 70,000 miles on it and is outside of the warranty. However this is a reported common issue online and even through the service department in Zelienople Pennsylvania because the tech. Told me they have the parts in stock because they do alot of them when I was inquiring into the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629641December 9, 2024
LATCHES/LOCKS/LINKAGES
The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 15 MPH and making a right turn, the tailgate erroneously opened causing a metal toy to fall out of the truck bed onto the highway. The toy was run over by a second vehicle causing damages to the front-end of the vehicle and destroying the toy. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in NHTSA Campaign Number: 24V060000 (LATCHES/LOCKS/LINKAGES). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 72,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628299December 2, 2024
STEERING
The steering wheel locked up with no warning while driving and truck shuts down and displays no power steering assist service. ERC warning twice in one week.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627824November 28, 2024
ELECTRICAL SYSTEM, BACK OVER PREVENTION: WARNINGS, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
At around 28,000 miles the truck started having intermittent electrical issues. The head unit will show a blue screen. Safty systems will automatically disable. Camera system failures. Even though the truck is a 2019 model it only has around 31,000 miles on it and is now out of warranty and I can’t afford to have the dealership chase electric issues. GMC should be ashamed of putting out such an unreliable vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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