2022 Chevrolet Silverado 1500

The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that while driving approximately 30 MPH and towing a trailer on Route 16 with his children inside the vehicle, within 10 minutes of driving, there was smoke coming from underneath the vehicle and entering the cabin. There were no warning lights illuminated. The driver pulled over safely. Additionally, the contact stated that there was no issue prior to the failure. First responders arrived on the scene but were unable to use fire extinguishers to contain the fire. The contact called 9-1-1. Within approximately 10 minutes, the vehicle was fully engulfed in flames, which reached an estimated height of 10 feet. A Police report and a Fire Department report were filed. The driver and his two children sustained smoke inhalation. The contact's daughter was vomiting; however, medical attention was not provided. The contact stated that a nearby vehicle and the trailer were damaged from the fire. The vehicle was towed to a tow yard. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and opened a case. The failure mileage was approximately 67,000.

Transmission failure with no electronic warning or codes. Hard shifting was identified while under warranty but because no codes were present no action was taken to correct the issue.

Engine sudden loss of propulsion while driving on interstate w/out warning. Pulled to side and check engine light and hot oil warning came on prior to engine dying. Had to call tow and dealer says engine needs to be replaced but they won’t ship vehicle back after repair and it’s 4 hours from my house, that I need to pick it up

When driving, the vehicle’s computer detects an issue with the vehicle’s transmission and throws a “Reduced acceleration. Drive with care” which causes a strong jerk like if the wheel locked up momentarily. The check engine also turns on and the vehicle stays stuck in 5th gear at all times. Code P0747 is thrown as well.

VEHICLE: 2022 Chevrolet Silverado 1500, VIN [XXX] DEFECT: Transmission suddenly, violently downshifts from a high gear to a much lower gear with no driver input, at highway speed. Causes RPM spike, violent jerking, Check Engine Light, loss of vehicle control. Occurred 5 times. Not fixed despite 4 dealer repairs, 61 days out of service. 5/12/26 - 1st failure, 70+ mph on I-5, stuck in low gear. 5/14-6/8/26 - Repair 1, Bud Clary Chevrolet: valve body solenoid replaced. 6/13/26 - 2nd failure days later, Hwy 12 (no cell service), spouse + [XXX] infant in vehicle, forced to keep driving to reach safety. 6/13-6/17/26 - Repair 2, Harvest Chevrolet: same fault codes; valve body connector found loose. 6/17/26 - 3rd failure, same day picked up, same [XXX] location. 6/19-6/26/26 - Repair 3, [XXX] Chevrolet Diagnosed by TSB#25-NA-301: wiring found chafed/pinched. Dealer's own paperwork says cause of fault codes could not be determined. I requested full internal transmission inspection; declined. 6/26/26 - 4th failure, same day picked up, ~100 mi later, [XXX] [XXX], family in vehicle. Dealer denied promised tow after 4-hr wait; transport arranged. 7/1-7/17/26 - Repair 4, [XXX]: GM's national Technical Assistance Center directed wiring circuit replacement (GMTAC Case #XXX). Again requested internal inspection; again declined. Service tech said GM engineering was dictating repairs and I'd "just need to drive it until it fails again." 7/20/26 - 5TH FAILURE: XXX near mile marker 24 (Kalama/Woodland, WA), ~75 mph, [XXX] in vehicle. Uncommanded downshift nearly forced my truck into an adjacent semi-truck. Same day picked up from Repair 4. SUMMARY: Code P0776 present at every repair; P0716/P0717 recur. 4 fixes attempted, none resolved it. Internal inspection requested twice, denied twice. Near-collisions XXX and XXX. Infant in vehicle for 2 incidents. 2nd owner; active GM powertrain warranty through XXX. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle experiences a sudden, violent drop into "limp mode" during active traffic acceleration. The internal Output Shaft Speed Sensor completely drops its signal, causing the vehicle to rapidly lose speed in active traffic lanes, creating an immediate and severe rear-end collision hazard.Diagnostic Evidence:Dealership (Crews Chevrolet) officially scanned the vehicle and documented history codes DTC P0722 (Output Shaft Speed Sensor Circuit No Signal) and DTC P0700. The dealership technician verified that the external wiring harness is fully intact, isolating the failure strictly to the internal transmission sensor.Manufacturer Actions:General Motors Corporate (Case thread::oxEmaLlrKKms4NDj0d9wJ0w::) is actively refusing to authorize the dealership to drop the transmission pan to replace this failing component under the active Bumper-to-Bumper Warranty. They are citing the "intermittent" nature of the safety hazard as a reason to deny diagnostics, forcing me to either operate an unsafe vehicle or leave it parked.

The internal transmission Output Shaft Speed Sensor (OSS) and its associated internal circuit/lead frame assembly failed. The vehicle is fully intact, operational, and available for inspection upon request. When the Output Shaft Speed Sensor intermittently loses its signal (dropping to 0 RPM while the vehicle is stopped at red lights or in traffic), it forces the vehicle into an immediate electronic "limp mode." Upon pressing the gas pedal to accelerate, the transmission violently slams into gear with massive mechanical force. This sudden, unpredictable jerking and hesitation while accelerating into active traffic creates an immediate risk of being rear-ended, losing traction, or losing control of the heavy vehicle in an intersection. The problem was officially confirmed via a diagnostic computer scan by an authorized GM dealership (Crews Chevrolet), which pulled and documented history codes P0722 (Output Shaft Speed Sensor Circuit No Signal) and P0700 (Transmission Control System Malfunction Warning). However, the dealership declined physical teardown or sensor replacement because the electronic failure is intermittent and could not be replicated during a brief technician test drive. Yes. The vehicle's external wiring harness was physically inspected by an authorized General Motors dealership technician, who confirmed the external wiring passed inspection. This officially isolates the intermittent electrical drop to an internal transmission component failure. It has not been inspected by police or insurance. Yes. The symptoms appeared suddenly without prior warning. The transmission began shifting erratically and violently, immediately followed by the illumination of the dashboard Check Engine Light (Malfunction Indicator Lamp). The onboard computer triggered diagnostic trouble codes P0722 and P0700.

While traveling at night on the highway at excess of 70mph the engine in my 2022 Chevrolet Silverado 1500 6.2L L87 experienced a sudden, complete mechanical failure and loss of propulsion while driving. There were no warning lights, sounds or any other indication the motor would instantly stop working. This created an immediate crash hazard for me, my children and my dog. The vehicle is completely inoperable and I paid $125 to have it towed home. Upon talking to the dealership service ce manager they are refusing to inspect/replace my engine under Safety Recall N252494001. The same dealer is also requiring a large diagnostic fee prior to looking at the vehicle and has stated they will require additional fees as needed. They also refused to provide a loaner vehicle.