2017 GMC SIERRA 1500 Complaints

I have been experiencing trasmission problems. The vehicle jerks, shutters and makes numerous thumping sounds during acceleration as well as at certain constant speeds. It frequently make a lound clunking sound when first put in drive and beginning to move. On January 16, 2025, I took the truck to Rubideaux GMC, 351 W Dalton Ave, Hayden ID 83835, for inspection. I was told that the torque converter "was shot" and that the transmission fluid was scorched and there metal shavings in the transmission filter. The service manager informed me that I needed a new transmission at a cost of $7,000. the dealer told me that they will have to find a remanufactured replacement which by their description are in short supply. I went to an independent shop in the area and was quoted a similar price. The employee also advised me of a class action law suite that was in process for 2016-2020 GM trucks and SUV's and passenger cars equipped with the model 8L transmission with the same problem. Several suits are under way including, [XXX] et al v GM, I find this situation especially concerning given the very gentle treatment Ive given this vehicle since I purchased it new. The truck only has 63,000 miles on it and I have never towed anything with this vehicle nor carried any load of more than a couple oh hundred pounds in the bed of the truck. What component failed? Transmission. The transmission is still in the truck pending available replacement. How was your safety put at risk? The transmission could fail while driving causing a lack of vehicle control. Has the problem been reproduced by a dealer? Yes it was confirmed by the dealership listed above. Has vehicle been inspected by the manufacturer, police, or insurance? It has been inspected by a licensed GMC dealer. Where there any warning lamps, messages or other symptons.....? No INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On 12/5/24 took the truck to the dealership where we bought it with a complaint about the transmission. They took for a test drive could not find anything wrong with it, recommended we have the transmission flushed and filter replaced. They could not do the service so we got it into our local Chevrolet Dealership who did the work for us on 12/6/24. On [XXX] as we were departing a gas station in Tifton, GA, the transmission would not shift out of first gear and the temperature rose up to 234 degrees. Limped the vehicle to a campground, called a transmission shop who told us to bring in the truck at 7:30 am o 1/2/25. They were able to replace the transmission on 1/3. We had to drive it 500 miles before we could continue on our journey to Florida. Trying to accelerate on the Interstate and not being able to significantly put us at risk of a crash. Once the temp rose on the transmission the check engine light also came on. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2017 GMC Sierra 1500. While the contact's husband was driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. Additionally, the RPM increased, and the drive signal flashed on and off. The vehicle was driven to the shoulder of the roadway. The vehicle was taken to an independent mechanic where it was diagnosed with transmission control module (TCM) failure. The contact was informed that the transmission control module needed to be replaced. The vehicle was not repaired. The vehicle was towed to the residence. The contact requested a second opinion from another independent mechanic, and it was confirmed as a transmission control module (TCM) failure. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 137,000.

Shifting 1st to 2nd and 2nd to 1st is very hard and jolting. It hesitates and doesn't go immediately which could cause an accident.

The contact owns a 2017 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. Additionally, the contact stated that the vehicle sputtered. The vehicle was taken to an independent mechanic and diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The contact stated that the failure was a persistent failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 111,000.

My rear defrosters shorted out causing a small fire and causing the window to explode. The recall for this issue has already been performed on this vehicle...

On Friday, December 6, 2024, my “check engine light” illuminated on my 2017 GMC Sierra pickup. The engine is the gasoline version of the 5.3 liter. I took my truck to Brogden Buick/GMC in Olathe, KS. They informed me the trouble code was 219a, indicating there was a problem with the fuel/air ratio. On Monday, December 9, 2024, I was contacted and informed the fuel injectors needed to be replaced at a cost of approx. $2700. Based upon research I’ve conducted GM’s fuel injectors have been a service concern since approximately 2014. Service bulletin DCS5097 (N182198000-Special Coverage Engine Fuel Injector) was issued on July 26, 2019 that included my engine configuration. However, this particular bulletin does not appear to cover my Kansas based vehicle. I just had my vehicle at Brogden for a previous check engine light two weeks ago. This required replacing the fuel cell pressure sensor at just over $700. These repairs seem to be related. I’m reading that 2023 and 2024 Chevrolet and GMC trucks are also having fuel injector issues. This seems to be an ongoing problem that GM does not appear to be appropriately addressing. My truck is relatively low mileage with only 58,786 miles. It has never towed, is garage kept and is maintained in a pristine condition. I’ve never experienced fuel injector issues any any previously owned vehicle .

Vehicle torque converter broke internally at 76000 miles while on the highway, causing vehicle immobile while traveling at 55 mph. Almost rear ended trying to get off highway safely. Torque converter failure caused transmission to have to be rebuilt at a cost of $4,700. After doing some research it is a very common and defective problem with trucks using 6l80 transmission.

I remote started my truck and entered the vehicle with my girlfriend approximately 3mins after remote starting. We immediately smelled smoke that smelled like an electrical fire. I heard sizzling/static-like/electrical short sounds coming from back seat and when I looked back, I saw thick white smoke pouring out of the the small black plastic trim piece on the rear power sliding window that covers the electrical connections between the sliding pane of the power sliding window and the solid, non-moving pane of glass on the passenger side of the rear window assembly. I immediately shut the truck off and climbed into the back seat with a flashlight to investigate. While looking at the rear window, the passenger side non-moving pane of glass in the rear window EXPLODED very loudly, which actually hurt my ears. The glass stayed intact but spider webbed the entire pane. I immediately pulled the fuse for the rear defroster and cleared the tremendous about of smoke that had filled my cab. The window continued to make sizzling and static like noises for the 20min ride home. Upon investigating this issue online, I discovered that GM has issued a recall on this defect for all of Canada and only certain US states that are above a certain longitude, which doesn’t include my state of PA. I am terrified to use my remote starter on the vehicle now or even preheat the truck manually for fear of burning mu truck down. I contacted a GM dealership who told me my truck didn’t have any active recalls on it and to file an insurance claim. I have since filed a complaint to GM customer service who is investigating my claim to determine if they will cover the repair. They said up to 30days to make determination! This is a huge safety hazard that is known and acknowledged to be in every Silverado and Sierra with a power sliding rear window within the model years 2014-1017

When driving the truck sometimes all the gauges start to go out and go back and forth all the dash lights go on an the whole truck goes to low power an only goes about 10miles per hour you pull over and let it cool down for about 20to30 minutes and can start the truck and drive off again took it’ to the dealer for a plug in and he said no code is showing up and can not help me its been doing this for 1and a half years