2025 Chevrolet Silverado problems

“CHECK ENGINE LIGHT CAME TRUCK STARTED RUNNING ROUGH AND ON LOW POWER TOOK TO DEALER THE CODE WAS MISFIRE CYLINDER 5 THEY FOUND CYLINDER BADLEY SCORRED SO THE REPLACED THE MOTOR AT 27000 MILES A 6.2 IN A 2025 SILVARADO 1500 TRAIL BOSS”

“The contact owns a 2025 Chevrolet Silverado 1500. The contact stated that while driving 45 MPH, the vehicle lost automotive power. The vehicle was restarted within seconds and the message "Push to Start" was displayed. The vehicle was taken to the dealer to be diagnosed, and the contact was informed that the failure was not duplicated. The manufacturer was notified of the failure. The failure mileage was 30,000.”

“The specific cause has not been identified. On XXX6, my 2025 Chevrolet Silverado 1500 Custom LT Trail Boss unexpectedly rolled away while parked and unoccupied, striking another parked vehicle. The truck remains at Modern Chevrolet and is available for inspection. GM/ESIS opened a safety and product liability investigation and is arranging inspection/data retrieval. I parked at Walmart in [XXX], shut the truck off, exited, locked it, and walked away. Shortly afterward, I heard a sound resembling the key-fob-left-inside warning. My key fob was in my pocket, so I returned and saw the truck moving with no driver. Another person and I tried to stop it. I entered through the driver’s door and pressed Start/Stop several times, but it would not start while moving. It continued moving and struck another parked vehicle. Vehicle dropped off on XXX and Modern Chevrolet could not reproduce the incident or identify the cause. The service advisor stated it “came out of gear but don’t know why” and escalated it to GM. GM/ESIS plans to retrieve SDM/airbag data, and I requested any Tech II/MDI scan data. No warning lights, messages, or chimes were observed during the incident.…”

“On XXX at ~3:00 p.m., I was driving my 2025 Chevrolet Silverado 1500 High Country (VIN [XXX]) in stop-and-go highway traffic with Super Cruise engaged. The vehicle ahead was a truck towing a low, empty flatbed trailer. My truck came to a complete stop behind the trailer. While stopped, with no accelerator input from me, the vehicle accelerated forward on its own and struck the rear of the flatbed before I could intervene. My foot was not on the accelerator. It appears the forward sensors may not have detected the low, unloaded trailer as an obstacle, so when the system resumed from the stop it accelerated into it. No injuries. The other vehicle had a steel rear plate and was undamaged; damage to my truck is estimated at $3,549.68. A vehicle that accelerates on its own from a complete stop into a stationary object ahead is a serious hazard. This was low-speed property damage only, but the same failure at higher speed, or with a pedestrian, cyclist, or child ahead, could cause death. I have an infant, and the thought of this happening with my child aboard is alarming. I am concerned that low-profile or unloaded trailers may not be reliably detected by the forward…”

“The vehicle experienced repeated high-voltage system warnings and battery conditioning system failures. On multiple occasions the “Service High Voltage System” message appeared along with codes P0530 and P1C26 related to the lithium-ion battery conditioning system that controls heating and cooling of the high-voltage battery pack. A critical U3578 code triggered an urgent OnStar alert requiring immediate service. The high-voltage fault was linked to an overcharged HVAC system that caused the A/C compressor to fail. This led to a full HVAC system replacement, radio/infotainment failure, and multiple module reprogrammings. The vehicle could not charge past approximately 65% and showed a red 12-volt battery light after charging. Burning electrical smells were present during some incidents. Warning lights and messages appeared repeatedly and were confirmed by OnStar diagnostics on April 28, May 6, May 19, and June 16, 2026. The dealer performed warranty repairs including compressor and HVAC replacement per TSB 25-NA-130, yet the same high-voltage and battery conditioning faults returned. The problem has been reproduced and documented by the dealer and OnStar. These…”

“While driving on the freeway with my family in the middle of a snowstorm, my 2025 Silverado 1500 with 8,000 miles on it, suddenly dropped gears down to 1st without warning. The check engine light went on and I later found out it was the valve body that caused it. This could have cause serious harm to my family had I not maintained control of the vehicle. The dealership fixed the problem only for it to happen again a month later. The truck is still in the shop.”