2017 GMC Sierra 1500

354 complaints on file, page 1 of 18.

1. Filed Sep 18, 2026Failure May 18, 2026140,000 milesOlive Branch, MSPower train

   The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving approximately 30 MPH to 50 MPH, the vehicle shuddered and made a shuddering sound while shifting between gears. Additionally, the contact stated that the engine lifters and camshaft were previously replaced. The contact associated the failure with NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The traction control warning light was intermittently illuminated. The manufacturer was notified of the failure by phone and informed the contact that the VIN was not included in the recall. The contact was referred to a dealer to determine whether the failures were associated with a recall for coverage consideration. The contact stated that a coworker's vehicle experienced an identical transmission failure, and a transmission specialist diagnosed that issue as a torque converter failure. The failure mileage was approximately 140,000.

   NHTSA complaint 11765271
2. Filed Sep 11, 2026Failure Aug 18, 2026Portland, OREngine, Power train

   The catastrophic power failure with no warning on my 2017 GMC Sierra, at 87450 miles completely contaminated the engine oil cooling lines with metallic debris and fractured structural mounts. The servicing dealership replaced the transmission but is refusing to remediate the engine line contamination without out-of pocket payment. The vehicle cannot be safely operated without causing terminal engine failure on the highway, creating a imminent mechanical and traffic safety hazard.

   NHTSA complaint 11763735
3. Filed Aug 28, 2026Failure Sep 2, 2025Saint Martinville, LAEngine

   I had an engine rebuilt completed on my L86 2017 GMC 6.2. After the repair, the engine failed due to the crank shaft on the engine being oversized which is the same problem that GM is having with the L87 engines. When the crank was ordered from the dealer for my L86, the only part number for the crank that was available was the new part number that was being used in the L87. Seems the same cranks were used in both engines and this recall on the L87 should be extended to anyone that had a rebuilt complete. Me and my family were left on the side of the road for a few hours which endangered our lives. The problem was determined by an independent service center and was fixed by the purchase of new parts and aftermarket bearings for the crank to allow the oil to enter the crank properly. There were no warning signs. Was driving down the road, started to hear a noise and then the engine started to over heat so that is when I stopped and called a wrecker.

   NHTSA complaint 11760208
4. Filed Jul 29, 2026Failure Nov 15, 2017South Houston, TXVehicle speed control

   When I accelerate the vehicle, the gears shifts every 10mph when it shouldn’t. It does it all the way up to 60mph. It has been an on going problem since we got the truck

   NHTSA complaint 11753626
5. Filed May 13, 2026Failure May 13, 2026Becker, MNElectrical system, Visibility/wiper

   Truck was started using auto start and I drove roughly a mile down the road smelt burning and looked in the back seat, I saw smoke and promptly pulled to the side of the road shut the vehicle off then I heard a loud pop and saw the back drivers side window shattered.

   NHTSA complaint 11737629
6. Filed May 4, 2026Failure Mar 28, 2026Rochester Hills, MIWheels

   Dear Sir, I currently own a 2017 GMC Denali that had a potentially catastrophic failure with one of the alloy wheels that are on my vehicle. Mileage about 110,000 I recently went to have new tires installed on my vehicles when the tire shop manager came from the work area and said that he could not put a new tire on my one wheels. The reason the tire store could not put a tire on that wheel is because two of the spokes on the alloy wheel were broken. There were three spokes between the broken spokes. The are 12 spokes on the wheel and the two broken spokes were non adjoining. They were not next to each other. There were good spokes between the broken spokes. With a close inspection of the wheel there is no scuffing or impact damage to the wheel either on the outside of the wheel or the inside that would cause this failure. The spokes just cracked. The fact that the two broken spokes are not next to each other would seem to indicate that this was a manufacturing defect. I am writing to go on record of this failure of the alloy wheel on my truck. If someone would like to inspect the wheel, please contact me to arrange for a time to look at it. I have attached pictures of the wheel with the broken spokes. Regards, [XXX] You can see the cracked spokes at the 12:00 and 7:00 position on the wheel towards the center of the wheel. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11735522
7. Filed Apr 19, 2026Failure Mar 2, 2026Danielson, CTEngine

   I drive this vehicle on higher speed roads to work everyday. Roads also used by large tractor trailers and like larger vehicles. I was told by dealer that I had broken exhaust manifold studs at a previous oil change. While driving the truck it seemed to lose power for a short time but I was in traffic and assumed the loss of power at that time was related to a possible exhaust leak.I scheduled a appointment to have the repairs addressed. When I picked up the vehicle I was told that there was a ticking noise in the top of the motor. They stated it was the lifters and needed to be repaired for $7136 dollars. I researched the problem and found out how big of an issue this is specifically for the owners of the 6.2l (L86) engine. Highly concerned I schedule the repair and dropped the vehicle off. Shortly after the dealer called and stated the vehicle had bent push rod collapsed lifters damage to the cylinder head, camshaft and worn camshaft bearings now cost are $14350 or replace engine for $17000. I chose to replace top end. The next day I was called back and was told the bearing on the cam journals were down to brass and I would need new engine. Cost in just 24 hours not are $22000. This vehicle was maintained by this dealer also for all fluid changes. The belief is all the failures were related to the active fuel management system. (going from 8 to 4 cylinders ).

   NHTSA complaint 11732205
8. Filed Mar 31, 2026Failure Mar 17, 202699,700 milesBurgaw, NCEngine, Engine and engine cooling

   The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, there was an abnormal tapping sound coming from the vehicle. The check engine warning light and an unknown warning light were illuminated. The contact stated that the failure had occurred while traveling out of state. The dealer was made aware of the failure, and the contact was informed that the repair was not covered under recall. The vehicle was towed to an independent mechanic, where it was diagnosed with lifters failure. The contact was informed that the lifters and camshaft needed to be replaced. The contact was informed that the lifter's failure had damaged the camshaft. The vehicle was being repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 99,700.

   NHTSA complaint 11728246
9. Filed Mar 17, 2026Failure Mar 17, 2026St. Cloud, MNElectrical system, Unknown or other, Visibility/wiper

   The rear window on my 2017 GMC Sierra shattered unexpectedly without any impact. The vehicle had been remote started in very cold weather and the rear window glass suddenly shattered while the truck was parked. There was no rock strike or external damage that would explain the failure. I later learned about GM Customer Satisfaction Program N192265660 regarding rear window defroster thermal events affecting certain 2014–2019 GMC Sierra and Chevrolet Silverado trucks. Based on the sudden failure and the conditions at the time, this appears consistent with that issue. The Auto Rear Defog feature in the vehicle settings was turned off, however the truck had been started using the remote start feature when the glass shattered. Photos of the shattered window are available. I am submitting this report because the rear window defroster system may cause the glass to overheat and shatter unexpectedly.

   NHTSA complaint 11725091
10. Filed Mar 11, 2026Failure Mar 9, 2026Murfreesboro, TNUnknown or other

    Rear glass window shattered due to the defroster getting too hot. Some smoke was noticed

    NHTSA complaint 11723547
11. Filed Mar 4, 2026Failure Mar 2, 202690,200 milesSaint Louis, MOVisibility

    The contact owns a 2017 GMC Sierra 1500. The contact stated that while attempting to start the vehicle, the defrost was turned on, but the defrost failed to function as intended. There was a loud pop, and there was brown and yellow smoke in the rear of the vehicle. The contact turned off the defroster. The vehicle was driven to the shoulder of the roadway. The contact exited the vehicle and inspected it. The contact stated that the rear driver's side sliding glass was fractured. The vehicle was not diagnosed or repaired by an independent mechanic or a dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,200.

    NHTSA complaint 11722013
12. Filed Feb 26, 2026Failure Feb 26, 2026West Bend, WIElectrical system

    While the 2017 GMC Sierra was warming up via remote start, I noticed a smell of smoke as I walked by the passenger side of the truck. Then I heard a loud bang as I was walking around the rear of the truck. As I entered the truck from the driver's door I saw the back window, passenger side, shattered. The vehicle was then turned off. According to our dealership the vehicle was looked at under recall N192265660 and deemed safe in May of 2020. A call was placed to GM who said the recall expired in 2022. An offer was made by for payment assistance by the GM representative but could not say how much until we pay the dealership for a diagnostic. This is a know issue by GM. The location of the shattered window is situated inches behind where my child's head would have been had she been in the vehicle.The smell of smoke is extremely concerning because where there's smoke there's fire.

    NHTSA complaint 11720780
13. Filed Feb 5, 2026Failure Jan 2, 2026Sykesville, MDVisibility/wiper1 injured

    While using the rear defrost my daughter smelled burning. Moments after the smell the rear window exploded. This is a sliding three part window and it shattered on the passenger side. My daughter was hit by the exploding glass.

    NHTSA complaint 11715880
14. Filed Feb 4, 2026Failure Dec 15, 2025Milton, VTEngine, Power train

    check engine light and traction control light on. vehicle undriveable. took to dealer code P0304 lifters need to be replaced

    NHTSA complaint 11715507
15. Filed Feb 4, 2026Failure May 21, 2024Canton, OHUnknown or other

    While sitting at a stop sign heard a loud bang and truck lunged forward as if we were rear ended . Actually thought we were . Drove about 20 miles and transmission went out . Even though i had foot on brake truck still went forward . Had to have transmission replaced at $6421.58 in Florida while on vacation . Have researched on internet and found several cases exact same thing . Even shop that did work said GM had a problem but was doing nothing as of yet .

    NHTSA complaint 11715495
16. Filed Jan 28, 2026Failure Oct 15, 2025Saint Martinville, LAEngine

    My L86 Engine had 250,000 plus miles and the engine went out. So we decided to rebuild the engine due to the truck being paid off and the cost of a new engine is much cheaper than a new truck. After the first rebuild the engine last around 10K miles. We pulled the engine back apart to find out that the crank bearings were shot along with the brand new GM crank that was purchased. After doing research, there was no enough clearance between the GM bearings and the GM crank. Basically the same issue that the L87 is having. After doing more research it determined by the part number on the crank and the part number GM provides on their website that the L86 and the L87 (engine with current recall) take the same crank. Therefore my L86 due to GM only making the L87 crank now and it replaces the original L86 crank we had to replace the engine a second time. I believe this relevant to all the L87 issues and any L86s that are being rebuilt. We ended up having to purchase aftermarket crank bearings to get the correct clearance on the second new GM Crank that was purchased. Truck is now running good now.

    NHTSA complaint 11713933
17. Filed Jan 25, 2026Failure Feb 14, 2017Reno, NVPower train

    My vehicle has lurched forward upon the first engine start of the day, under no throttle, on several occasions, throughout the life of my vehicle. Shortly after starting my 6.2 engine in my garage, if I shift my 8L90 transmission into Drive as soon as the engine RPMs settle to idle, the vehicle will lurch forward, screeching the tires. Luckily, I had my foot on the brake hard enough such that no one was injured. The harsh transmission shift into drive is dangerous, possible injuring passengers or my garage door. I've learned that if I wait 5 to 10 seconds, allowing the engine to idle (while the transmission oil becomes pressurized ??), then the shift into drive is normal, without any lurch.

    NHTSA complaint 11713207
18. Filed Jan 25, 2026Failure Oct 15, 2024Reno, NVPower train

    After 38,000 miles and 8 years of normal service (mix of city, highway, and 10% towing), my 8L90 transmission began to shudder occasionally. The problem first became apparent when driving slightly uphill, on cruise control at about 50 mph, or while slightly accelerating on a flat road, with no load in the box, and no trailer. It felt like I was driving across a rough patch of asphalt or rumble strips. Every half mile or so, it would shudder. Slowing down or speeding up stopped the rumble. The problem proved not to be caused by tires, U-joints, or AFM. The problem in fact was caused by defective GM transmission fluid, which was sold as "sealed for life", and rated for 200,000 miles, as factory-installed. That proved to be BS. If not repaired, this problem would lead to transmission lockup and/or lack of propulsion, which could contribute to a vehicle crash. The problem was solved by installing AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid, Product Code: ATLTP-CA. If GM properly cared for their customers, to make up for false advertising at the time of purchase, GM should publish and pay for GM Service Bulletin #20-NA-142, for all 8L90 owners, instructing owners to replace their transmission fluid every 5 years or 40,000 miles, whichever comes first.

    NHTSA complaint 11713202
19. Filed Jan 19, 2026Failure Apr 28, 2023San Angelo, TXEngine

    6.2L lifter failure camshaft destroyed. Complete top end rebuild cost me $8500. Same problem as the previous recall.

    NHTSA complaint 11711990
20. Filed Dec 31, 2025Failure Dec 31, 2025Worcester, MAElectrical systemFire

    Started car via remote start. When I went out to the car I noticed smoke in the cab. I then observed the rear power slide window to be smoking and further discovered the rear defroster wires the be smoldering creating considerable smoke. The tempered glass then began to spider and completely cracked. There is a former recall on the rear slide window involving fire hazards and the wiring components. It should also be noted that our 9 month old’s car seat is directly below the window and defroster wiring were the smoldering took place. No warnings lamps were observed prior to the incident.

    NHTSA complaint 11707975