GMC Sierra Complaints (2017)

481 consumer complaints on file.

#11583350April 16, 2024
POWER TRAIN
Transmission shifting hard. Shuddering around 60-65 mph
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11581592April 7, 2024
POWER TRAIN
I purchased the vehicle in November or December 2022. Since then I’ve had problems with my transmission. The torque converter was replaced 2 times, it’s been in the shop 5-6 times and nothing fixed under the warranty when I purchased it. Finally the dealer I purchased from said they won’t take the vehicle back and won’t spend any more money on fixing the truck. Now it has become on my dime to figure it out since I gave up trying to have a shop diagnose and fix it. The last shop said I would have to pay to have the transmission removed and possibly have the valve body replaced since the dealer I purchased it from gave the second shop one chance to get it right. The transmission downshifts hard and clunks since the first day of purchase. Makes a weird wining noise still til this day. I have spoken with the owners of the dealership and they did not seem to care about my problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580525April 1, 2024
ENGINE
The truck had 8 glow plugs replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11576664March 11, 2024
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
on [XXX], i remote started my vehicle about 10 minutes prior to leaving work. when i left and walked out to my truck i opened the driver side door and noticed smoke in the vehicle and an odd smell. upon looking around the truck i heard a loud pop and the passenger side of the rear sliding back glass shattered. upon further investigation this has been an ongoing issue with gm trucks and even 159,000 have been recalled in Canada and there has been no recall issued in the United States. the major safety concern is that in the back seat of my vehicle i have two car seats for each of my toddler aged sons. i am just thankful that neither one of them were in the vehicle when this happened. i brought the vehicle to the dealership and they told me that there was indeed a short in the wiring going to the back sliding window and defroster but there was nothing they could do other than replace the glass. 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
#11575816March 6, 2024
POWER TRAIN
Truck has always shifted rough, now with only has 102,000 miles has been serviced regularly exclusively at the dealership. It started slipping gears and I was just informed by the dealer that the torque converter detonated and the entire transmission must be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11574702February 29, 2024
AIR BAGS, SEAT BELTS
The contact owned a 2017 GMC Sierra Denali. The contact stated that while driving at 65 MPH, he briefly fell asleep. As a result, the vehicle left the roadway and collided with the exit median, coming to a complete stop after careening into a side ditch. The air bags did not deploy, and the seat belt failed to properly retrain, resulting in head and neck injuries. No warning lights were illuminated. A police report was filed, and injuries were reported. The contact was transported to an area hospital by EMT and treated for various lacerations to his head and arms and an unstable fracture of the C7 in his lower neck, later requiring surgery. The vehicle was towed to a tow yard and deemed a total loss by the contact's insurance provider due to a bent chassis. The manufacturer was notified of the failure, and they inspected the vehicle, concluding that the impact was not sufficient to trigger air bag deployment, estimating that the vehicle was traveling between 1 and 4 MPH and that the air bags were functioning properly. The VIN was not available. The failure mileage was 32,000.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11573683February 23, 2024
POWER TRAIN
The transmission is shuddering, hard shifting, shuddering and lunging into gear. It is the 6L80 transmission Also has little to no power, took it to the dealership for diagnosis and they say the transmission is bad, torque converter is also bad sending metal throughout the rest of the transmission.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11572868February 20, 2024
ELECTRICAL SYSTEM
Started truck for 10-15 minutes with front and rear defrost on to remove ice from glass. Upon entering the truck, there was a smell of wiring/plastic burning. Smoke was coming from the bottom corner of the rear sliding window. I immediately shut off rear defrost and then shut my truck off. Then the driver side rear glass panel popped and shattered completely.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11570621February 7, 2024
SERVICE BRAKES
At low speeds I have no brakes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11570086February 5, 2024
POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle experienced severe transmission shudder and was vibrating while driving up inclines. The vehicle was taken to the local dealer who diagnosed that the transmission torque converter was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 80,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11568191January 27, 2024
SERVICE BRAKES
The incident occurred on [XXX]. My vehicle has 54,571 miles on it. The power brake assist function failed. I was backing into a parking space at a local fast food chain and experienced near brake failure. I had to stand, nearly full body weight pressure, on the brake pedal to get my truck to stop at very slow speed. I, again, backed a short distance of a couple of feet at the most and experienced the same issue when I tried to stop. I placed the vehicle in PARK and turned the engine and ignition key off, thinking the system possibly needed to reset. I started the truck and drove forward, very slowly, to another parking space and applied the brakes. I experienced near total brake failure again. I had my truck into Brogden GMC in Olathe, Kansas on [XXX], for general maintenance and a “brake pressure recall.” I had experienced a slight brake pressure issue on a couple of occasions prior to the recall. After the recall service was performed I did not experience a braking concern for some time. I did experience “soft braking” a couple of times after the recall was performed and attributed it worn brakes. On [XXX], at 50,596 miles, I upgraded my brakes by installing a Power Stop Z36 brake kit with slotted rotors and ceramic pads. I have not had a repeated experience of soft braking or brake failure until the [XXX] incident that I am currently reporting. It appears to me that the earlier recall did not completely address the brake failure issue with my 2017 GMC Sierra 1500 pick-up. 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
#11568131January 26, 2024
UNKNOWN OR OTHER
The info system starts to change screens and jump around. We had it on navigate it locked the screen. You couldn't touch anything then. It started messing with the controls on the -Changing it from the speedometer to music and again would not allow you to touch anything calibrated or anything along those lines. After googling it, several vehicles are having the same problem. All around 50000 miles, our vehicle has about 80000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11567736January 25, 2024
POWER TRAIN
Transmission temperature sensor has failed. It is available for internal inspection within the transmission pan. Safety has not been in issue, but, apparently it can cause hard shifting when the sensor starts to go bad. You can also easily tell when the sensor is going bad by watching your trans fluid temp needle. It will erratically bounce up and down, sometimes slightly and other times it's big jumps, so you will not be able to tell if the transmission is overheating or running at normal operating temperature. The problem has been confirmed by a local service center. The vehicle/component has not been inspected. There has not been any problems prior to this issue. The check engine light came on 1/24/24 in the evening time. Check engine codes are P0711 & P0700. This is a known issue between 2015-2018 GM vehicle equipped with the 6.2L & 8-speed transmission. There is/was a special warranty number, #N192291660, that qualifies with the 2016 models.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11567657January 24, 2024
POWER TRAIN
I was driving my truck home from work, when all the sudden the car at a stop sign lurch forward, with the brake applied and was not moving, or I would have hit the car in front of me. Upon, the green light, truck started to shift and go faster, while making a whining noise, at only 26 miles per hour, then, the vehicle, tried to speed up with nothing engaging, and came to a complete stop very aggressively and abruptly, while in traffic, I almost was hit from the sudden stop. Getting to the side of the road, the truck wouldn’t move anymore, and except in rear gear. Called OnStar service and vehicle was towed to the closest GM dealership, about a mile from my house. This was on a Saturday evening, On Monday, the dealer service agent called me, had already diagnosed the problem as a failed 6L80 GM transmission, this was at 930am, asked if I wanted it repaired I said yes. The dealer called back at 3pm that same day and said the transmission had already been repaired. Which to me is a bit surprising as it needed a new transmission, which should take longer. Glad it was fixed so fast. The cost was to be around 6700 dollars. From my knowledge this is a known issue with these transmissions. My concern, is that I could have been in an accident from a known defect in manufacturing that GM knew about and did nothing to address.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11566761January 21, 2024
POWER TRAIN
Transmission has stalled many times from shifting through 1st and 2nd gear going across divided highways and nearly causing accidents, also it has a very bad shudder and hard shifting.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565402January 14, 2024
SERVICE BRAKES
When I hit the brakes it has no stopping power, hard to push brake pedal and when sitting at a complete stop it has been known to start going even though I have foot on brake.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11565063January 12, 2024
SERVICE BRAKES, HYDRAULIC
The contact owns a 2017 GMC Sierra 1500. The contact stated that while coming to a stop at slow speeds, the brake pedal was depressed; however, the brake pedal felt spongey, causing the braking distance to become extended. There were no warning lights illuminated. The contact learned of NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic) and linked the failure to the recall. The dealer was contacted, and it was confirmed the VIN was not included in the recall. The vehicle had not been taken to the dealer. The vehicle had not been diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11562883January 1, 2024
POWER TRAIN
My transmission started to shutter then went in and out of gear till it doesn't stay in gear
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11562052December 27, 2023
POWER TRAIN
THE TRANSMISSION NEEDED TO BE REPLACED CAR WOULD NOT GO IN REVERSE OR FOREWARD AT ALL . IT ONLY HAS 120,000 MILES ON IT .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11561527December 22, 2023
ENGINE, POWER TRAIN
My 2017 GMC Sierra 1500 Denali started shaking violently and the rpm gage began bouncing 1/4 to 1/2 inch in a very short amount of time. I ran a maintenance facility in Europe with 317 local national and 25 U.S. employees. Two of my brother-in-laws, and one of my nephews are mechanics. Two run their own auto repair facilities. All three reported having to replace torque converters on multiple gmc/chevrolet 1500 trucks. Many at somewhere between 40 and 60 thousand miles. If this is such a systematic problem, and from the number of vehicles they have had to repair it is, why hasn't a recall been issued. Second, in most cases dealerships first charge excessively for replacing the transmission fluid (approximately $900) and then end up replacing the torque converter. The owner has to pay for the transfluid replacement out of pocket because it is considered maintenance instead of replacing the torque converter at company expense...especially if you purchased and extended warranty through a third party. If this is recalled, owners should be reimbursed if they had to pay for it themselves and they should be required to replace the transmission fluid filter as a part of the repair,
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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