GMC Sierra Complaints

15,732 consumer complaints on file.

#11427773August 4, 2021
POWER TRAIN
GM has known issues, which I'm sure the NHTSA is aware of. This involves transmission in 2015-2019 model trucks, both GMC and Chevrolet, among other GM vehicles. In my research there have been no less than 13 TSB's issues by GM trying to rectify these issues. The latest TSB states that a new blend of transmission fluid is the fix. In my instance the transmission started shifting hard with less than 30K miles. Took to dealership and they reprogrammed the transmission control module. Fixed the issue for a while but then started back after about 10K miles. In Feb. 2020 with 60K miles a transmission temperature sensor failed on the transmission. I took it in to replace sensor and as a result they had to change the fluid at which time they told me they replaced it with the new recommended fluid. Now at 94K miles it has started producing the hard shuddering at certain speeds. This is the main problem the fluid change is supposed to fix. Well guess what. It does fix it. I'm now scheduled to take it back in on Monday 8-9-21 to have the torque converter replaced. The company I work for has about 12 of these model GMC trucks and 7 of them have had to go back in to fix this same issue. Some of them multiple times. I'm out of warranty and these repairs are not cheap. The biggest safety issue is the tranny could fail at any point going down the road and leave me with no drivetrain and potentially get hit. In my 40 years of driving and owning 20 vehicles between me, my wife and 3 kids I have never had a tranny fail. This is the first and GM has know about this issue for years. They need to be made to fix these issues and replace all transmission that are having issues and repay me the money I've already paid and the money I'll have to pay next week. This is ridiculous that NHTSA has not gotten involved enough to force GM to correct this. You need to force the hand of GM to make this right. You know of the problems, now get it fixed!!!!!!!!!!!!!!!!!!!!!!!!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11427444August 2, 2021
ELECTRICAL SYSTEM
Driving 5 mph, error came on and truck shut off completely while still driving, I was able to start it, drove to my destination, about 10 miles away. Parked and turned off truck, came back, the truck was completely dead. replaced the battery and was fine for a month. Yesterday while pulling up to destination on low gear going slow error showed up, the engine revved high then shut down completely. EPS recall and no dates to service yet.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11427108July 30, 2021
UNKNOWN OR OTHER
AC condenser has a leak I believe is to a bad welding on one off de lines this happen on June 29 on my 2014 gmc sierra 1500 whit only 55000 miles on it I been reading a lot complains only I wonder if this is going to come to a safety recall
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11427090July 29, 2021
ENGINE
GM has a lifter problem that causes complete engine failure. When this happens the engine completely locks up rendering the vehicle completely shutdown. This is happening over and over in early stages of 2021 Chevrolet and GMC Vortec V-8s. Mine happened at 13000 miles on a 2021 6.2L GMC Denali, and GM is only fixing the problem partially and as I understand with the same defective product that just failed. Also it is known this failure likely will happen again as it is a design flaw. If this happens in the wrong traffic situation it will be very dangerous. I am very concerned. When my vehicle was towed to dealer they had 7 other 2021 complete engine failures just like mine waiting for repair.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426773July 28, 2021
ELECTRICAL SYSTEM
While fixing an exhaust leak on this vehicle, the grounding cable that attaches to the engine block appeared to be chafed, partially crushed, and exposing some copper. The grounding cable runs down the firewall of the passenger side of the vehicle, runs briefly along the frame rail, and passes underneath the exhaust manifold. There is a potential for the cable to not properly ground over time, causing unknown issues. The vehicle has not been inspected by the manufacturer or dealer as this vehicle is outside of bumper-to-bumper warranty. A support case was opened with GM, but as an individual, they will not allow me to report the issue with pictures. They require the dealer to be the reporter.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426774July 28, 2021
ENGINE
The contact owns a 2021 GMC Sierra 1500. The contact stated that while driving in inclement weather, the vehicle stalled without warning. The contact looked under the vehicle and saw that engine oil was leaking from a puncture in the oil pan. The vehicle was towed to the local dealer however, the cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 5,800.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426862July 28, 2021
ELECTRICAL SYSTEM, STEERING
The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at low speeds, there was a reduction in the power steering assist. The stability track and abs warning lights were illuminated. The electronic power assist became inoperable. The vehicle was taken to the local dealer but was not diagnosed nor repaired. The manufacturer was notified of the failure. The contact stated the failure was like NHTSA Campaign Number: 18V586000 (Steering). The failure mileage was approximately 87,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426623July 27, 2021
STRUCTURE
The contact owns a 2010 GMC Sierra 1500. The contact stated that upon inspection it was discovered that the receiver hitch was rusted and caused several holes. In addition, the spare tire hanger was also severely rusted. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet contacted. The failure mileage was 104,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426721July 27, 2021
ELECTRICAL SYSTEM, STEERING
When you push on the break the vehicle’s power shuts down. Yes it is available for inspection upon request. When steering wheel is turned it dies. After this happens stabilizer light comes on and power steering assist comes on. No inspection has been done called dealership and they said the recall from 2014 had already been done. This is a very serious issue when driving in traffic and I do not want to be in or cause an accident
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426422July 26, 2021
EXTERIOR LIGHTING, POWER TRAIN, ELECTRICAL SYSTEM
The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at various speeds, the transmission failed to operate as designed causing the vehicle to sputter and not properly accelerate. Also, the digital speedometer display would not display properly due to a faulty radio. Additionally, the driver’s side headlight failed to properly illuminate due to moisture build-up inside the headlight assembly. The vehicle was taken to the local dealer who was unable to duplicate the failure. There was no service performed on the vehicle. The manufacturer was not notified of the failure. The approximate failure mileage was 1,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426471July 26, 2021
AIR BAGS
Takata recall. The contact owns a 2008 GMC Sierra 1500. The contact received a recall notification for NHTSA Campaign Number: 21V050000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the issue. The part was not available for repair. The contact had not experienced a failure. Parts distribution disconnect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11425535July 19, 2021
AIR BAGS
Takata recall. The contact owns a 2013 GMC Sierra 2500. The contact received notification of NHTSA campaign number: 21V053000 (Air Bags) however, the part to do the recall repair was not yet available. The contact called the local dealer and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Vin tool confirms parts not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11425566July 19, 2021
ENGINE
Rear main oil seal failure causing truck to lose all oil, leaking all over truck, trail leading to drive and garage; possibility of engine seizing up while driving causing an accident, confirmed by dealer, covered by warrenty, is a known issue, no warning lights, messages, or other symptoms of problem, NHSTA has issued a bulletin for this problem
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11425307July 18, 2021
STEERING
Power steering hard to turn at low speeds and backing up and cluster gauges go dim then back to normal
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11425101July 16, 2021
UNKNOWN OR OTHER, STRUCTURE:INTERIOR PANELS:DASHBOARD
The dash cover panel over the instrument cluster and passenger side airbag has cracked and has begun to come apart in pieces. I have contacted a local dealer and they have informed me the recall on the passenger side airbag replacement does not cover replacement of the cracked dash cover. The dash cover has begun to produce large jagged pieces where it has cracked that in my view pose a safety threat should an accident occur. The failing dash could produce shrapnel in an accident that could cause serious face lacerations or eye trauma. GM needs to provide a replacement recall on the dash panel.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11425124July 16, 2021
POWER TRAIN
The contact owns a 2018 GMC Sierra 1500. The contact stated that upon depressing the accelerator, the vehicle shuddered while upshifting. There was no warning light illuminated. The contact had taken the vehicle to a local dealer where they were unable to service the vehicle. The contact had also taken the vehicle to an independent mechanic who informed him that there was a TSB placed on the vehicle. He explained that the incorrect type of transmission fluid had been placed in the transmission which would cause the failure that he had experienced. The contact then called Sewell Buick GMC of Dallas (7474 Lemmon Ave, Dallas, TX 75209) where he was informed that he would be charged a diagnostic fee prior to the repair. The manufacturer was notified of the failure but offered no assistance. The vehicle was not repaired. The failure mileage was approximately 45,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11424839July 14, 2021
ELECTRICAL SYSTEM
At various intervals, all four door lock actuators have failed. first rear door failures occurred in July 2020. Front door lock actuators began failing Spring of 2021. Rear lock actuators were repaired at a contested (I was charged for 3 hours labor when truck was on site for two) cost of $801.86.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11424663July 13, 2021
AIR BAGS
The contact owns a 2009 GMC Sierra 1500. The contact stated that the service air bag warning light was illuminated. The vehicle was not diagnosed nor repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 21V052000 (Air Bags). The vehicle was repaired but continued to experience the failure. The manufacturer was informed of the failure but offered no assistance. The failure mileage was approximately 131,667
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11424415July 12, 2021
AIR BAGS
NONE
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11424480July 12, 2021
SERVICE BRAKES, ELECTRICAL SYSTEM, STEERING
On 6/24 I drove my 2019 gmc Sierra denali truck 2 miles to the store was in there 10 minutes come out to start it and a ESC service warning message appeared then another message appeared say service power steering drive safe then my traction light came on then my trailer light I tried turning truck off then waited 2 minutes pumped brakes started it again same messages appeared I called my husband to tell him I said I will try to drive home as I preceeded to put in gear and back out of parking spot I lost my steering it froze up then lost my brakes I immediately put in gear turned off called husband to come get me as I was waiting I tried to start again when I did all messages were gone and I had steering as well.as brakes but at this point I was a an emotional wreck we just had a horrific scare in same truck on a major interstate my husband completely lost brakes and almost wrecked only to find there was a brake module reprogramming recall on the truck we had not been notified by mail yet so now this if I was driving on main road this could have been fatal so my husband called and dropped off vehicle on 6/25 told them every detail they said they call when done so on July 6th was told truck was ready when he arrived they handed him our keys and invoice said have nice day my husband got to truck read invoice only to find they did nothing to truck he went in to service said why isn't it fixed they said because no codes come up but if it happens again bring it back my husband said what if im driving it and it happens this can cause a fatal accident the service Mgr said just bring it in so he said so if my wife gets callhet husband was killed along with another family because his steering and brakes failed your going to tell her sorry for loss truck had no codes is now we have a truck we paid $58500.00 that is unsafe to drive i refuse to put my life or others in jeopardy im an emotional wreck I spent 2 days sick with worry can anyone help with guide us to some help
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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