2024 Chevrolet Silverado 1500: stuck in gear or won't shift

Filed Oct 24, 2026 · Electrical · LA

Engine wiring harness. Apparently engineeed, designed or installed poorly. With normal use, multiple points are subject to wearing of insulation or wire fracture. While on cruise, transmission went into limp mode. Dealer verified exposed wire, replacing entire harness.Chevy has service bulletins out on the issue but nothing to the customer.

Filed Sep 10, 2026 · Engine · 4 miles · OH

The contact owns a 2024 Chevrolet Silverado 1500. The contact stated that the vehicle had been experiencing inaccurate DEF gauge readings since the purchase, and the failure mostly occurred while towing a camper or trailer. The contact stated that while driving 70 MPH on the highway and hauling a camper, the message that the DEF tank was empty and needed to be refilled was displayed, and the vehicle went into LIMP Mode and decelerated to 35 MPH. The driver continued driving and pulled over to a safe location. The vehicle was taken to a dealer, where it was determined that the DEF tank needed to be replaced; however, the manufacturer denied authorization because the required preliminary procedures had not been completed. The manufacturer General Motors LLC was notified of the failure by phone. The failure mileage was approximately 4.

Filed May 22, 2026 · Electrical, Engine · FL

The primary failure is in the electronic transmission control system and engine wiring harness assembly, specifically throwing diagnostic trouble codes P0700 (Transmission Control System Malfunction) and P0717 (Input Speed Sensor Circuit No Signal). The authorized dealership identified a critical issue with the engine harness chafing, but their subsequent repair attempts have failed to resolve the recurring powertrain failure. The complete vehicle and all affected components are currently parked and fully available for immediate physical inspection at my residence upon request. While operating the vehicle at highway speeds, the powertrain abruptly loses throttle response and forces itself into a severe, uncommanded "Reduced Power / Limp Mode." This creates a severe safety hazard by instantly dropping vehicle velocity on active interstates and high-speed roadways, leaving the vehicle unable to accelerate out of harms way or merge safely, placing myself, my passengers, and surrounding motorists at immediate risk of a high-speed rear-end collision.The malfunction has been repeatedly confirmed and documented by authorized GM service agent Rountree Moore Chevrolet (Lake City, FL) across three separate service visits. The dealer confirmed the active trouble codes and attempted various repairs (including Transmission Control Module reprogramming on 04/24/2026, engine harness chafing repairs on 05/19/2026, and auxiliary fluid/battery adjustments on 05/21/2026). The persistence of the failure confirms the dealer has been unable to successfully remedy the defect. To date, the vehicle has only been inspected and worked on by the authorized dealership's factory-trained technicians. It has not yet been involved in a collision requiring police or insurance representative inspections, nor has a corporate field engineer from General Motors inspected it outside of the local dealership level.The failures are consistently preceded by an illumination of the dashboard Check Engine

Filed Apr 18, 2026 · Engine · NE

Was driving the truck on the highway at 75mph when suddenly the motor revved up in rpm’s and vehicle lost all power. There was no warning lights or any limp mode or anything as such as far as warning. The truck lost all power and could hear metal to metal sounds and turned off the motor. I was able to coast the truck to an off ramp in 70mph traffic. The truck would not turn back on and vehicle was immobile, had to have the vehicle towed by a flatbed to a gm dealer near by. The dealer gave me a loaner pickup and hasn’t looked at my vehicle yet. I bought this pickup less then 3 weeks ago and the L87 recall and oil change had been done prior to me buying it. I was just happy that the truck didnt full shut down at that speed and cause a crash etc. Dealer said motor failure to me and couldn’t confirm a turn around time frame for my truck to get back to me.

Filed Mar 16, 2026 · Fuel system · NY

The DEF tank failed making the exhaust system malfunction. This puts the vehicle in limp mode.

Filed Mar 14, 2026 · Transmission · FL

On 1/31/2026, while returning from an AKC event with my XXX year old border collie, I was traveling on IXXX at approximately 70MPH in the left hand lane passing other traffic. As I started up a hill in a remote area, I began to hear a knocking sound coming from the engine compartment that sounded like a rod knocking and the truck began to struggle to continue up the hill. It then lost all power, a message stating to shift to neutral and restart flashed on infotainment screen, I shifted to neutral and pushed the start button, but everything went blank. I had to struggle to merge back into right lane and eventually over to the breakdown lane, approximately 5 miles from the nearest exit. I was forced to remain on the side of a busy interstate for approximately two hours during an unusually cold day for Florida that consisted of snow flurries while waiting for roadside assistance. Luckily, I was able to arrive at the dealership 5 minutes before closing and was able to get my truck checked in. The service writer knew exactly what the likely issue was when I described my ordeal, and it was partially confirmed when she pulled the Christmas tree of codes from the computer that my truck was throwing. It should be noted that the truck would not restart after the catastrophic failure that stopped the motor at 70MPH on the interstate and would not shift to neutral for the tow truck operator to load or unload onto flatbed. Subsequently, Techs determined that engine failed due to suspected internal damage to crankshaft and motor was replaced under warranty along with torque converter. The failed engine serial number was [XXX] but I was never notified or included in current recall 25V274, It did not show as active recall in GM App nor was it inspected during LOF visits at various GM Service departments. My truck was in GM service from 1/31 - 2/21 for the engine replacement, Mileage on 2024 Silverado 1500 High Country was 25,274 at failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(

Filed Feb 11, 2026 · Transmission · MA

Transmission failed at 15000 miles. Attempted to shift to reverse and instead car went into neutral. Allowed me to shift into forward but quickly went into “limp mode” once underway. Seems like the same issue as many similar gm trucks have had with transmissions but my 2024 is not included in active recalls when searched by VIN. Suspect it probably should be since issue appears to be the same as those that are.

Filed Nov 7, 2025 · Transmission · WI

Complaint Description On Tuesday October 28th, 2025 while driving to work, my 2024 Chevy Silverado LTZ suddenly went into limp mode during normal driving. The truck would not go into reverse at all. I had to use OnStar to call a tow from my residence because the vehicle was not safe or able to be operated. The truck has been at the Chevrolet dealership since that day and as of today (November 7th) it still has not been repaired. The service department confirmed it is a failed transmission valve body. Research shows this is a recurring and known issue on many GM trucks and GM does not appear to have a permanent fix yet. Component/System that failed: Transmission Valve Body failure. Component is currently located at the GM dealership and is available for inspection. Safety Risk: This failure caused sudden limp mode, loss of power, and inability to reverse while in active traffic. This put my safety and potentially other drivers at risk due to sudden unexpected deceleration and inability to maneuver safely. Problem Confirmed: Yes. Confirmed by GM dealership service technicians. Inspection: The vehicle is currently at the GM dealership. No manufacturer field rep, insurance, or police inspection has occurred yet. Warnings / Codes Present: The failure occurred without prior early signs that morning. When it failed, OnStar diagnostics reported: P2732: Transmission System — “Engine and Transmission System not performing as expected.” P0700: Transmission Control Module requested Malfunction Indicator Lamp illumination. Emissions related DTC set in the Transmission Control Module. Both codes triggered at the time limp mode activated. Best Assessment: This appears to be an ongoing recurring GM transmission valve body issue affecting newer GM trucks. The failure caused a sudden loss of drive capability and is a safety hazard that requires the federal safety agency investigation.

Filed Jul 20, 2025 · Fuel system · NH

DEF System will count miles down saying it is going to put you into limp mode while towing, when there is 3/4 plus DEF fluid in the tank. This caused me several times speed slow downs under 65 to try to make it to a safe place to add under 2 gallons to fill a 5 plus gallon tank on 70 to 80 mph highways a few times at dusk and night with limited off off travel lane access! This is telling you it will put your vehicle in limp mode! Again causing a dangerous situation! I very much feared for my well-being along a dark road with cars going 70 plus while I was trying to add DEF to a 3/4 full tank only taking around 2 gallons!!

Filed Jun 24, 2025 · Transmission · IL

Valve body needs to be replaced. The truck is still under warranty. I have taken it to the dealership, they ordered the part and told me it was safe to drive in limp mode. I've since been waiting a month for the part to come in without a replacement vehicle. I can't drive to work and am losing quite a bit of business. There is a valve body in stock 97 miles away and GM will not ship it to my local dealer or help me in any way. The truck will not make it 97 miles for the repair. The check engine light stays on for a few days and goes off. I can only drive about 10 miles before it goes into limp mode and the dash will tell me I have reduced acceleration and to drive safely. As far as the safety of me and others UNKNOWN. The dealer has confirmed there is an issue but insists I continue to drive it even though I'm damaging the transmission.

Filed Jun 9, 2025 · Transmission · PA

New police vehicle on the road for only two months with only 6030 miles on it. Check engine light came on vehicle lost all power, no reverse, transmission would not shift. Warning came up about decreased acceleration. Managed to get vehicle to dealer, computer scanning stated that transmission valve body failed.

Filed Apr 28, 2025 · Driver assistance, Electrical · AK

Since purchasing this truck 06/30/2024; during the 9100 miles driven, electrical issues such as check engine, EWS needs to be serviced, Forward Collision Service, Stereo screen freezing up, Tire Pressure stating air is needed but checked air pressure, it is where it should be, Right Signal Trailer service needed but not pulling a trailer. Three times after starting the truck it failed to go into reverse, stuck in neutral. Two of the three times it was able to reset after 10 minutes of shutting down the truck and restarting. Third time had to get the truck towed due to unable to reverse out of parking spot. When driving it seems as if the truck is stuck in 2nd gear while trying to accelerate, rough driving at times. When car turns off it makes knocking noise and sounds like it is trying to turn off electrically. Tailgate would open while driving even though shut and checked. Driver seat motor failing while trying to move the seat. Middle seat stays in upright locked position for days before it will release. Dealership is stating that valve body needs to be changed but will take up to 6-8 months due to backordered part, but no loaner car is available. Will have to be without a vehicle for the entire time. All is covered under warranty.