When traveling at highway speeds our vehicle suddenly lost all engine power. Driving in the passing lane of [XXX] at 75 mph our 2023 Chevrolet suburban RST 6.2 lost all engine power and went into neutral. We were barely able to make it over to the right breakdown lane without getting hit and making it with no power. We were stranded on the busy interstate for three hours with my wife and three young kids in a very dangerous location. They were scared and because we barely made it into the breakdown lane and so close to speeding traffic had to stand outside of the vehicle close to the woods further from dangerous traffic. The Suburban was flatbedded to nearest Chevrolet dealer where we were told the engine was seized and would need to be totally replaced. We were lucky to be alive but now stranded 1000 miles away from home as we were returning from a vacation in Florida. The sudden lose of all engine power traveling on the highway with our entire family was both scary and dangerous. The suburban has now been in the shop for three weeks with no date in sight to be ready and 1000 miles away. This was a truly dangerous situation and thankfully we came out unscathed but I fear someone else may experience the same type of failure and not be so lucky. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Bethlehem , CT, USA

While driving our 2023 Chevrolet Duramax diesel suburban, I was waiting, at a complete stop, against the median to make a U turn. When the traffic cleared, I began the turn when I suddenly noticed a nearly complete loss of power, hesitancy of engine engagement, and little response to the gas pedal being depressed. Then an error message appeared on the dashboard stating "Low acceleration warning". There was very little acceleration power available. The rear wheels seemed to spin. I was perilously endangered while making a U-turn across lanes because of this loss of power. The vehicle was then taken immediately to our local Chevrolet dealer who diagnosed a error code message (P0700, 0747) related to transmission valve and injectors. We are very concerned that this was a dangerous occurrence and should be further investigated. We have a 30-year history of Suburban ownership, however this is our first diesel model. We have never had problems of this significance, or seen this error message before. Since this diesel Suburban is nearly new, we are particularly concerned about the durability and safety of this vehicle. Please see attached servive report. The AC compressor was also failed and replaced

- Tucson, AZ, USA

DEF sensor has failed and required placement. Required three visits to the dealer to get them to address it (Grayling, MI, White Lake, MI and Charlottesville VA). Transmission throttle body failed and required replacement. Took 2 visits to get it addressed.

- Crozet, VA, USA

I recently took my 2023 Chevrolet Suburban in to make sure everything was working properly with the power train... it has been having bucking and stuttering between 15-45mph, which was super concerning to me, as I am transporting 3 children [XXX]. I took in yesterday, and was called back today to confirm that the issue is happening... the problem is that instead of Chevrolet recalling these vehicles to have this computer issue taken care of... they did an update and are charging their clients to have this update done. This is a serious safety hazard, especially for families like mine that cannot afford to have this update done. I will likely have to drive around without having it done, all because of GM's greediness. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Artemas, PA, USA

Driving the vehicle on an interstate highway with the flow of traffic at 70 mph, without warning the engine shut off. This caused loss of speed and loss of power steering, almost causing me to be hit in the rear end twice at highway speeds. There were no warning lights or any instrument indication prior to the failure. After barely being able to get the vehicle into the brakedown lane, the vehicle would not restart. The electronics all worked, there were no warnings or indicator lights but the engine would not start despite multiple attempts by myself and the tow truck driver. The vehicle is currently at the dealership being diagnosed.

- Huntington, MA, USA