*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Fuel/propulsion system
I was returning from the airport in [XXX] with my kids, driving northbound on [XXX] when my truck engine turned off without warning. The truck began to slow down while I was surrounded by traffic going roughly 70mph. I had difficulty steering and braking because the vehicle engine was off. I attempted to restart the vehicle while it was coasting and slowing to dangerously low speeds in interstate traffic. The vehicle would not turn back on. I managed to change lanes through traffic and get to the emergency shoulder of the roadway and stop. I was shaken up over the incident, feeling very anxious about nearly causing an accident on the interstate. My kids were also very scared. I had the…
Oct 15, 2026Engine
The contact owns a 2024 GMC Sierra 2500. While the contact's husband was driving uphill approximately 32 - 34 MPH and hauling a trailer, the vehicle unexpectedly lost motive power and rolled backwards. The brake pedal was depressed, and the parking brake was engaged to stop the vehicle. OnStar and 911 were contacted. The trailer was towed to the residence, and the vehicle was towed to the dealer. The dealer determined that an unknown software update had caused the failure. The dealer performed a repair under TSB: 6318272, updated the engine control module software, and completed an oil change and tire rotation. The failure mileage was 17,520.
Oct 4, 2026 · 17,520 milesElectrical system
The vehicle experienced a loss of engine power accompanied by a check engine warning light and a âReduced Accelerationâ/reduced-power condition. The exact component causing the malfunction has not yet been determined. The vehicle and any affected components are available for inspection upon request. While driving the truck uphill toward our residence, the vehicle lost significant power and had difficulty maintaining acceleration. The truck stalled several times. The sudden loss of engine power while driving on an incline created a safety risk because the vehicle was unable to maintain normal acceleration and could potentially have stopped in traffic or created a hazard for other…
Sep 14, 2026Fuel system, gasoline › Delivery › Fuel pump › Control/drive module
The contact owns 2024 GMC Sierra 2500. The contact stated that while driving 25 MPH and depressing the accelerator pedal, the vehicle decelerated and stopped independently. A dealer was contacted. The vehicle was taken to the dealer and was diagnosed with fuel pump driver control module failure. The contact was informed that the fuel pump driver control module needed to be replaced. The contact associated the failure with Technical Service Bulletin: 24-NA-139 (Fuel Pump Driver Control Module stalling or no-start conditions); however, the VIN was not included in the TSB. The manufacturer was notified of the failure, and informed the contact that the vehicle was under warranty. The failure…
Sep 14, 2026 · 54,238 milesPower train
driving down the road going to and intersection the dash says I received a Service ESC message followed by a Reduced Acceleration warning on the center display. I also had the forward collision, traction control and check engine lights come on. I also noticed the shudder/jerk. The truck is giving a P060C code and when i was driving it dies in the intersection of the road and will not start back up. puts the computer in a safety mode. I have call my local GM dealer and they did not fix it and it happen twice. I the truck dies in the middle of the road and no way to start's it and if a big rig crashes in to the truck some one or more than one will be hurt or killed
Sep 7, 2026Vehicle speed control
While driving my truck on the highway at 65 mph the truck bucked hard and immediately downshifted into 2nd gear. This caused me to rapidly decelerate to approximately 40 mph, I am lucky there was not another vehicle behind me when this happened since rapid unexpected deceleration without brake lights is very dangerous. I had to drive the truck in limp mode at 45mph and approximately 4500 rpms to the nearest exit. This event illuminated the trucks check engine light and displayed a brief service 4WD message followed by a permanent reduced acceleration message on the dash.
Aug 25, 2026Steering › Hydraulic power assist › Power steering fluid
The contact owns a 2024 GMC Sierra 2500. The contact stated that while driving 5 MPH, the vehicle lost brake and power steering functionality, and there was smoke coming from underneath the hood. The contact stated that power steering fluid was leaking onto the engine. No warning lights were illuminated. The vehicle was towed to a local dealer, where it was diagnosed, and the contact was informed that the power steering pump had seized, the belt and hoses had failed, and the parts needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 40,832.
Aug 18, 2026 · 40,832 milesPower train
The control valve body failed. There are so many, that there was a shortage of parts. Had to take it in as it went into limp mode. 34,000 miles. There were dozens of trucks, same year, waiting for the same repair. Shop says probably every truck will need it. It is a known issue.
Jul 27, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
