2017 GMC Sierra problems

Filed Apr 29, 2024 · Visibility · 97,000 miles · OR · fire

The contact owns a 2017 GMC Sierra. The contact stated that while his wife was driving at an undisclosed speed with the defroster activated, a smoke odor was detected inside the vehicle. The contact's wife checked the rearview mirror and saw flames coming from the rear windshield. The contact's wife pulled over and heard a loud explosion from the rear windshield shattering before turning off the vehicle. The flames from the rear windshield were extinguished on their own after the vehicle was turned off. There were no injuries sustained. The vehicle was restarted, and the contact's wife deactivated the defroster before driving to work. The vehicle was taken to the dealer, where it was determined that the rear windshield needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 97,000.

Filed Oct 20, 2022 · Brakes · 51,117 miles · KS · crash

The contact owns a 2017 GMC Sierra LD. The contact stated that on two separate occasions while driving at approximately 50 MPH, the front passenger side wheel locked inadvertently. As a result, another vehicle crashed into the attached trailer which caused the trailer to jackknife. The driver alert warning light illuminated. The air bags failed to deploy. No medical attention was required. No injuries were sustained. A police report was filed. The vehicle was not diagnosed or repaired. The contact then stated that on a separate occasion while driving at normal speed, the front passenger side wheel inadvertently locked without warning. As a result, the strut detached from the control arm which caused the attached trailer to detach and crashed into the vehicle that caused the vehicle to crash into a ditch. the rear passenger side air bags deployed however, the front driver and passenger side air bags failed to deploy. No injuries were sustained. No medical attention was required. A police report was filed. The vehicle was towed to the contact’s residence and then towed to a collision center. The vehicle was not diagnosed or repaired. The contact referenced an unknown the federal safety agency recall related to the Service Brakes, Hydraulic as a possible cause. The manufacturer was not notified of the failure. The failure mileage was approximately 51,117.

Filed Oct 13, 2022 · Transmission · 60,000 miles · CA

The contact owns a 2017 GMC Sierra. The contact stated while driving at various speeds, the transmission inadvertently shifted from high to low gears and the RPMs revved up. There was no warning light illuminated. The vehicle was taken to the dealer where the failure could not be duplicated. However, the failure recurred while driving. The vehicle was then taken back to the dealer where it was diagnosed that the valve body, the clutch, the piston, and the transmission plates needed to be replaced. The vehicle was repaired, however, the failure persisted. The contact stated that while driving and an undisclosed speed, the transmission was shifting hard into a lower gear, then into third gear without warning. The vehicle was taken back to the dealer but was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

Filed Jul 7, 2022 · Tires · 50,000 miles · NJ · crash

The contact owns a 2017 GMC Sierra equipped with Goodyear, Tire Line: Wrangler SRA, Tire Size: 275/55/R30, DOT Number not available: The contact stated while driving 25 MPH, the passenger’s side front tires experienced blowout. The contact was able to pull over safely and replace the tire. The failure reoccurred and the front driver side tire blowout causing the contact to sideswipe another vehicle and crashing into a building. The airbags deployed but no injury and a police report were filed. Neither the dealer nor the manufacturer had been notified of the failure. The failure mileage was approximately 50,000.

Filed Mar 7, 2020 · Driver assistance, Electrical · 70,000 miles · MO

When I'm driving at a slow speed turning the truck looses all power and the steering wheel jerks out of my hand, stabilitrak is on the display and it says roll down driver window and roll back up! It also looses all power just driving down the road no matter the speed! I have also been stopped at a stoplight and it lost all power wouldn't come back on so I had to get out pop the hood and bang I. The battery box and cables and it started again! Very scary going 75 MPH and it shuts off leaving you no steering no brakes no lights no nothing! Sometimes it says power steering failure sometimes and sometimes it says stabilitrack problem at something about towing! The brakes were also affected no brakes

Filed Mar 2, 2020 · Brakes · 71,000 miles · SC

After parking and backing up when I hit the brakes, they got hard and did not operate properly. When pulling forward the brakes were hard to operate and barely stopped the vehicle. After sitting a while and restarting the truck they operated as they should have. Not sure if this is an operable safety issue but, it was very concerning that the brakes did not operate properly.

Filed Mar 1, 2020 · Body, Brakes · 39,100 miles · OR

I live in oregon, my truck that I purchased from a private owner from utah in june of 2019 had 37,300 miles today's date march 1 2020 my truck has 39,100 miles. A couple of days ago I changed to my oregon license plate. While under the truck I noticed a lot of rust on many parts of the brakes, suspension and frame especially when I lowered the spare tire which showed severe rust damage. This truck has an extreme amount of rust for a vehicle built in 2017. I consider this to be a safety hazard especially because drivers use this type of truck to haul or tow heavy loads.

Filed Feb 29, 2020 · Brakes · 58,000 miles · TX

Truck was recalled for brakes. Recall completed was computer issue. That recall caused brake vacuum to malfunction. Almost cost me my life. 70 MPH in dallas tx traffic. Had to slow down quickly. Once it slowed down then it wouldn't stop!!! Got it to a parking garage almost hit 3 vehs. It was traumatic. Gm knows about this issue. Many others have reported. Not happy!!!!! Gm extended the brake warranty to 150000 miles. That makes me feel better. They put same part back on. So I guess it will happen again. I'm very leary of my truck.

Filed Feb 28, 2020 · Engine · NE

Coolant light continues to come on. I've had it to the shop and they say that it is a manufacturing problem. However they are not willing to fix it. I have the same problem on my chevy high country that has the same 6.6 diesel engine in it. The mechanics all acknowledge that this is a problem for all of these model 6.6 diesel regardless of whether it is gmc or chevy. This should definitely be a recall. The warning light continually comes up on the display saying I am low on fluid. However, when I check it it is always full. There is a high chance that if it is low I will automatically reset it thinking that the warning light is not functioning correctly. Again, the gm text knows that this is a problem throughout the fleet. Again, this should be a recall. If you have further questions you can reach me at [xxx] thank you for your time, [xxx]. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Feb 26, 2020 · Transmission · 3,000 miles · MI

Have had this into the dealer at the first oil change and complained about transmission shifting issues and it being unsafe to drive. Complaints are: hard shift, it clunks both upshifting and downshifting. Going around corners from a stop the truck will either fall on its face or jerks you violently forward. In stop or go traffic it is unsafe and happens very frequently- it randomly accelerates (jumps) quickly on its own with slight pedal pressure to the point where you constantly have to be aware and have your foot near the brake or you cause an accident by rear ending the car in front, its as if the transmission electronics get confused on how to act. Feel shuddering from truck's motor where column shift lever would shudder violently where I was afraid it would vibrate out of position. Rough idle is inconsistent at lower speed where you see tach going up and down. Starting cold you give it an easy pedal to move and wouldn't go. Trans doesn't kick in until you press harder and sometimes will lunge. Have taken into the various dealers 5-6 times, valve body change, engine motor mounts change and dealers can find no fix. Gm powertrain was even involved with no help. Complained to the gmc hotline and they said need 12,000 miles on truck before the truck knows how to drive because of the 'smart' transmission where it learns you're driving habits. Complained there are 2 of us that drive it how can it learn each individuals driving when it doesn't really know who is driving. They finally said there is nothing that can be done for it, that is the way it is. This all happens sporadically in both city low speed driving and highway driving, turning, backing up or going forward from parking. Because of these issues, didn't really drive the truck much because of the problems.