2022 Chevrolet Suburban Power Train

Our 2022 suburban with the diesel motor has had 3 separate incidents where by all accounts the wheels have locked up while driving. The incidents mirror what has been described in the recall N242454440. The first time the incident occurred, we were driving while towing a light load (boat ~2500 lbs) at a steady speed of 60 mph. While driving the vehicle shook violently once, and then again about 2-3 seconds later. I immediately pulled over suspecting that maybe there was an issue with our trailer. After finding nothing we drove home without incident. Shortly after this incident we had the transmission flushed for regular maintenance at about 50,000 miles. Approximately 5-6 months later the second incident occurred. While driving with no trailer, up a mountain in NC at a steady speed of 35 mph, the vehicle shook violently and then again approximately 2-3s later. Each time the vehicle shook a loud "BUMP" noise would be heard. The road was smooth and was later driven on without issue so it was not the terrain. I once again got out and inspected the vehicle and was unable to find an issue. We drove to where we were staying and immediately took the vehicle to a dealer the following day to be inspected. The dealer found no issues and we did not report any similar problems. The last incident occurred after another 8 months while towing a light utility trailer at a steady speed of 60mph. Same thing happened with a shake and loud BUMP. However this time it was not followed immediately by an other instance. Those came approximately a minute later and then again after about 10 more minutes. I cannot recreate the issue and it seems to be at complete random and is happening while driving steady rates of speed where the transmission shouldn't be trying to shift. It seems like a safety hazard that could cause an accident.

While driving from work to the gym (03/04/25), I was stuck in traffic due to a wreck; when traffic started moving again, I didn't. It was like it was in neutral and was just sitting there revving the engine. It finally started moving but clearly not functioning properly. A few miles later the Check Engine light came on with a "Reduced Acceleration Drive with Care" message displayed on the dash. I limped it into the parking lot and as I tried to back into a parking space the vehicle stalled and put itself in park. Finally was able to get it into a parking space to wait for a tow truck to have it towed back to the dealership. Chevy dealership has informed us that it needs a torque converter and a valve body (03/06/25) and they will create a "SPAC case" with GM as it is still under power train warranty. No eta on parts. Supposed to hear from Hertz on a rental (no more than $45 coverage a day; so likely not going to get a similar vehicle as a rental); no further news as of today 03/07/25. We bought the vehicle less than a month ago and haven't even made the first payment (other than the down payment); looks like that will occur and we won't even have a car to show for it.

Valve Body issues under powertrain factory warranty. Recall needed due to unreasonable national parts delay.

See attached document for complaint.

On January 29, 2025, while my wife was driving our 2022 Chevrolet Suburban with a 6.2L gas engine on a state highway, the vehicle suddenly lost acceleration and power to the wheels while accelerating to the posted 55 mph speed limit. This occurred without any prior warning, creating a highly unsafe situation in morning commute traffic. The vehicle was immediately taken to a Chevrolet dealership, where the issue was diagnosed as a failed transmission control valve. This failure, which resulted in a complete loss of power while driving at highway speeds, is a known defect affecting certain GM models. The part in question, the Transmission Control Valve, is currently in high demand and is on a national backorder due to numerous similar failures. A recall has already been issued for diesel engine models with the same problem, but no recall exists for the gasoline-powered versions like ours. Chevrolet has confirmed the diagnosis and is aware of the issue, but the replacement part is currently on a national backorder, and the repair has been delayed indefinitely. Since the incident, the vehicle has been undriveable, causing significant inconvenience, and Chevrolet has been unable to provide an estimated date for repair. The sudden loss of power created a dangerous situation on a busy highway, as there were no warning lights, messages, or symptoms prior to the failure. This is particularly concerning given that the part involved is on backorder due to the widespread nature of the issue. Chevrolet's lack of a clear repair timeline, coupled with the fact that this issue has been identified in other models, raises questions about the company's response and whether a broader recall or safety bulletin will be issued for vehicles like ours. The vehicle’s failure has not only been a major inconvenience but also a safety concern, highlighting the need for urgent attention to address this defect.

On 12/28/2024, while accelerating on the highway, I received without warning a reduced engine power warning and the RPM's were racing when I depressed the gas pedal. I was in moderate traffic in excess of 55 MPH and had difficulty safely making it to the right shoulder of the roadway as traffic was passing by at a greater rate of speed than I was able to travel. The vehicle would not go more than 30-35 MPH and it would not go into reverse after I was able to make it to a safe location. It was towed to a local dealership where I was later advised it was a transmission issue (valve body). The vehicle remains at the dealership awaiting repair as there is a large backorder for the valve body (I was told 8 at this point).

Coolant control valve failed and needs replaced. Which left me and my 3 children (one being [XXX] ) stranded on the side of [XXX] for 2 hours before someone could get to us. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

VEHICLE TRANSMISSION BANGS AT 50-65MPH SO MUCH SO THAT THE VEHICLE GOES INTO LIMP MODE. CODE APPEAR ON DASH, MUST SHUT TRUCK OFF AND WAIT ON SIDE OF ROAD TIL GOES BACK TO NORMAL IDLE. RESTART VEHICLE, THE ENGINE LIGHT STAYS ON FOR THE NEXT 3 STARTS THEN CLEARS TIL IT HAPPENS AGAIN.

Engine failure at 27k miles on a highway going highway speeds (45-50 MPH). This failure happened on a night when it was 5 degrees and dropping, vehicle full of my family + my parents. Complete engine failure, no way to run heat or move the vehicle at all. Engine failure #2 at 37k miles while driving down a 2 lane road, was able to pull into an apartment complex Complete vehicle infotainment failure, not able to use handsfree device, backup cameras, front and rear safety sensors. Engine failure #3 at 65k miles on a 4 lane highway going 65-70 MPH. Was able to get to a turn lane. Engines have shuddered / lost power steering / electrical many times while going 70+ MPH on 3+ lane highways

Vehicle became disabled and will not start due to failed fuel pump control module. This could be very dangerous if this would have happened in traffic; or, if vehicle occupants became stranded in an unsafe area. Vehicle must be towed to dealership to affect repair.