2017 GMC Sierra 1500 engine problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 11, 2026OREngineTransmission & Drivetrain

   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…

   NHTSA complaint #11763735 · source
2. Filed Aug 28, 2026LAEngine

   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…

   NHTSA complaint #11760208 · source
3. Filed Apr 19, 2026CTEngine

   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…

   NHTSA complaint #11732205 · source
4. Filed Mar 31, 202699,700 miNCTowedEngine

   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…

   NHTSA complaint #11728246 · source
5. Filed Feb 4, 2026VTEngineTransmission & Drivetrain

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

   NHTSA complaint #11715507 · source
6. Filed Jan 28, 2026LAEngine

   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.…

   NHTSA complaint #11713933 · source
7. Filed Dec 30, 202580,000 miMDEngineTransmission & Drivetrain

   The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle jerked and slammed into the intended gear. The check engine warning light illuminated. The contact stated that the failure had persisted, and the vehicle had failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the drive was rough, and there was an abnormal rumbling sound coming from the engine. The contact stated…

   NHTSA complaint #11707915 · source
8. Filed Dec 1, 2025126,581 miPATowedEngine

   The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, there was a tapping sound coming from the engine compartment, with the check engine warning light illuminated. The contact also stated that the vehicle lost motive power. The vehicle was towed to the dealer, where it was diagnosed, and determined that the lifter rod had failed and needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the…

   NHTSA complaint #11702201 · source
9. Filed Oct 9, 2025AREngine

   Truck was in park idling and it started to run really rough so I turned it off. Wouldn’t start again. Now it needs a new motor.

   NHTSA complaint #11692464 · source
10. Filed Sep 19, 202524,000 miFLBrakesEngineTransmission & Drivetrain

    The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving approximately 55 MPH, the vehicle started losing motive power. The accelerator pedal was depressed and the engine revved; however, the vehicle failed to respond as intended. There was no warning light illuminated. The contact pulled over, and after several attempts, the vehicle restarted. The contact was able to drive the vehicle to a local dealer and failed to exceed 10 MPH. The dealer was able…

    NHTSA complaint #11688303 · source
11. Filed Aug 20, 2025ILEngineSuspensionTransmission & Drivetrain

    In November 2023, my lifters collapsed and I had multiple bent pushrods on my vehicle due to the active fuel management system, leading me to become stalled in my vehicle on the middle of the road with no way of getting off the roadway safely. I have had multiple issues with this vehicle, and know many other who have as well. I had been compliant with all routine and preventative maintenance to this point, and I know that this will lead to injuries or fatalities due to these…

    NHTSA complaint #11682028 · source
12. Filed Aug 8, 2025MDEngineOther / UnknownTransmission & Drivetrain

    To whom this may concern, This gmc truck with the 6.2 has had constant engine issues regarding the lifters failure causing the engine to destroy itself internally I’ve had to get it repaired every 3 Months on average there’s also a class action lawsuit that applies only to the 2025-2020 years however they are the exact same engine in the 2017. The transmission is not in sync with the motor having a late take off or sounds like the gears are grinding between shifting

    NHTSA complaint #11679331 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology