general problems of the 2021 Chevrolet Silverado 1500

Good morning, while driving and starting my chevy Silverado 1500 with 3. 0 durmax it will suddenly go into a “limp mode” reducing speed and power. Recently while driving on a highway it reduced engine power causing the vehicle to slow down suddenly with many cars speeding by. This caused me to try and pull over the vehicle and avoid hitting other vehicles. When pulling codes off the vehicle there is a p1098 which refers to the engine coolant control valve. This will cause the vehicle to do the described power reduction. Upon researching the issue gm has recognized and released a special coverage to fix the issue. N252508341. However my vehicles VIN does not pull up the coverage. All the characteristics of the coverage seem to fit the model and issues I have. It’s the same year, model, engine, etc. I’ve attached a dot report of the special coverage. I’m hoping this will help fix my vehicle and others with this same issue. Although it’s not specifically listed as a safety recall, I feel the cause of the sudden power reduction is known by gm and warranty issued and the problem should be resolved for all vehicles with this issue. Thank you!.

While driving at anywhere from 18–25 mph or 70–85 mph, my speedometer starts going crazy, the engine accelerates or decelerates, the speedometer shows random numbers, and you can hear and feel that the motor power feels different. Not all the times but is started to show more often.

Throttle body failure anti brake lock failure throttle position sensor failure power reduced *vehicle has been to repair shop 3 times and the issue prevails. It poses a risk to my community because my loses power sporadically*.

The car while I’m driving, when I start driving it has a kick could be transmission.

Vehicle has less than 35k miles. Vehicle started and operated normally attempted to turn onto main thoroughfare from a stop. While still in drive, vehicle engine rev’d up but transmission did not engage. Attempted to cycle through gear selector with same result. Reverse is the only gear that allowed vehicle movement. Serious safety concern if this were to happen while traveling at any significant speed or if trying to merge or cross heavy traffic. Vehicle has not had an official diagnosis, but I believe this is a transmission valve body problem known to the manufacturer. There was no indication prior to this event of any mechanical or electrical problems with the vehicle. This issue could easily get someone killed.

We were driving 40 mph when all the sudden the rear tires locked up without warning. We almost got in an accident and thankfully were able to get off the road. Then, the check engine light came on and the truck went into limp mode and would not shift gears automatically and it was difficult to make it home. We had a mechanic come to our house to run a diagnostic and they informed us of the recall and confirmed it is what the truck was experiencing. We took it to the dealership and they confirmed the recall and that there was no available fix and nothing they could do for us. Meanwhile, ours is not safe to drive.

Fuel regulator- high/low pressure failed. Yes the vehicle is available for inspection (currently at rotolo Chevrolet). My safety and others were compromised because was on freeway approximately 75 mph and my power and speed was unexpectedly reduced. Almost caused pile up, I had to take evasive measures to guide truck to slow lane, and off the road. Yes, the problem has been confirmed [xxx] by certified Chevrolet technicians at rotolo Chevrolet-fontana California. Yes the part/vehicle has been inspected by certified Chevrolet technician. A few odd hard engine starts(June/July figured a "cold" start). 2 weeks prior([xxx]) to the on road incident, the check engine light came on while driving, stopped vehicle to refuel- when the truck was restarted the check light was no longer illuminated. Scheduled ASAP service appointment 8/16/24 with Chevrolet, they couldn't take it sooner than 8/19/24 being that my truck is still under power train warranty. Unfortunately they say a faulty fuel regulator is not covered. Document is initial service request order, I was called by technician stating the specific (fuel regulator) issue and that my repair cost would be over $1,030. 00. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The transfer case has locked up several times causing me to wreck once. The engine misfires and does not give the mpg advertised. The life of my family has been put at risk with little to no care from the dealer after several attempts for service.