2022 GMC Sierra 3500

The contact owns a 2022 GMC Sierra 3500. The contact stated that while driving 65 MPH and depressing the accelerator pedal, the vehicle hesitated before going into LIMP Mode. A dealer was contacted. No warning light was illuminated. The vehicle was towed to a dealer where it was diagnosed with transmission control valve failure. The vehicle was not repaired. The contact associated the failure with NHTSA Campaign Number: 24V797000 (POWER TRAIN); however, the VIN was not included in the recall. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The approximate failure mileage was 71,000.

MY TRUCK IS EXPIERANCING THE SYMPTOMS OF RECALL # N242454440 TRANSMISSION VALVE BODY, ITS SHUTTERING BETWEEN SHIFTS AND CLUNKING IM AFRAID OF THE REAR WHEELS LOCKING UP FROM THE HORROR STORIES I HAVE READ THE TRUCK IS AT COULTER GMC NOW FOR EXACT DIAG BUT FROM EVERYTHING I HAVE READ THIS IS COMMON ISSUE FOR THIS RECALL THAT MY VIN DOES NOT FALL UNDER FOR SOME REASON

While driving on the interstate we were exiting to pull into a rest area while slowing down the rear wheels momentarily locked up and the truck downshifted hard and abruptly with that happening the check engine light came on along with a decreased power message. We pulled into a parking spot during so we tried to shift into reverse and it didn’t want to shift into reverse, we tried this for a while. We finally got it into reverse and we were able to back out of the parking spot. When we tried shifting to drive we encountered the same issue. The vehicle did not want to go into drive. Once finally into drive it did not want to shift into any higher gears. It was essentially stuck in one of the gears. We made it to a GMC dealer on the next exit -we drove on the side of the interstate to get there- when we arrived we had them run the codes and they told us it was a transmission control valve which GMC has had a major recall on. While we had this “fixed” at a different dealership previously in march of 2025 it only entailed “updating the software” involving the transmission control valve. We had to leave the truck at the GMC dealer that we were able to ‘limp’ to in Crestview FL. We’ve been told our truck now needs an entirely new transmission that is going to cost $7,000. We had a similar issue right after the “software update for the transmission control valve” on march 20, 2025. The software was updated roughly a week before that incident which seemed to have cleared itself because it was momentarily and never happened again until now. Our safety was at risk because we had to drive on the side of the interstate to get to a shop because we were out of town and a tow truck was going to cost between 600-1000 dollars to get home.

• What component or system failed or malfunctioned, and is it available for inspection upon request? The issue appears to be with the gear shifter assembly and/or park position sensor within the power train system. The vehicle fails to detect that it is in “Park,” even when the gear lever is physically in the Park position. Yes, the vehicle and component are available for inspection upon request. ⸻ • How was your safety or the safety of others put at risk? This malfunction prevents the vehicle from shutting off properly and displays a “Shift to Park” message even when parked. This creates a risk of the vehicle rolling away if the parking brake is not engaged and prevents secure shutdown, potentially draining the battery or creating confusion in an emergency. It compromises both driver and public safety. ⸻ • Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the issue was reproduced and acknowledged by a certified GMC dealership service department. They noted it is a known issue affecting other GM vehicles but stated there is no open recall or warranty extension currently available for my specific model. ⸻ • Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle has only been inspected by a GMC-certified dealership. No inspection has been conducted by the manufacturer, police, or insurance representatives at this time. ⸻ • Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes, a “Shift to Park” message appears on the dash even when the shifter is correctly placed in the Park position. This message began appearing intermittently and has now become a consistent issue over the past few weeks.

The contact owns a 2022 GMC Sierra 3500. The contact stated that while driving at unknown speeds, the transmission downshifted hard. The contact stated that the transmission failed to properly shift gear. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 24V797000 (Power Train); however, the VIN was not included. The vehicle was taken to the local dealer who was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 117,000.

The transmission failed which stemmed from the faulty (recently recalled valve body). General Motors has been contacted and there is no transmission in sight and is not able to provide an ETA. They are also not willing to cover the catastrophic failure because I am outside of my warranty terms. The dealership has inspected and concluded a whole new transmission is recommended. The vehicle has been in their possible for nearly one (1) month.