2024 Chevrolet Silverado 1500 Power Train

I got my new 2024 Chevy Silverado 2.7l turbomax custom 6 months ago. It shifts weird the first few times from a cold start. I have asked the salesman and he said yeah you have to let the truck warm up for 5 min or so. But even in doing so it still happens, worse the colder out it is. Yesterday I went to grab some food and went to take off onto the main road and when it tried to shift from first to second it felt like the transmission just stopped working for a few seconds then hit 2nd gear hard. I was told this was because the truck needs to get used to the way I drive it. Which I now have close to 4,000 miles on it and it still happens almost every time I shut the truck off and it cools down to ambient temperature. I know this is not normal, and a big safety concern because when I do go to pull out and this happens it feels like a total loss of power and does not take off like it should. I have yet to bring it into the dealership. But I have called about the issue and was told this is normal and would go away. Which it has not. So I am going to make a appointment to get it in the shop. I have also read that many others are having this same exact issue. In which case some people are saying they told them the same thing “that it’s normal”, I have heard others say they will change transmission fluid because the fluid they used is to thick, and have heard of others who had to have them change out the control module for the transmission and or reset it. I am just worried that I’m going to pull out on day and have this happen and get hit from the rear because I don’t have the power I should have to take off properly. Not to mention I should not have to let my car idle for 5-10 min before I can drive it. That’s a huge waste of gas, and time, plus having your direct injection idle makes a ton of carbon build up in the engine. I am not a certified technician but I have been working on my own vehicles for over 20 years now. So a brand new truck should not be doing this.

Truck went into second gear unexpectedly at 50 mph due to what dealer said was a bad solenoid. GM has had the truck for over a month with no date of an times repair due to no parts being available

Driving on interstate 85 on cruise control when I herd the motor RPM start to climb so I tapped the break and that’s when the truck shut itself off and put itself in neutral causing me to have to coast over to shoulder of the road. Message on the dash said push start button to start again. There were no check engine lights, no overheating temperature lights. No codes at all. The truck is a 2024 with 62,000 miles and all oil changes on time. Upon checking online , this has happened to other vehicle owners as well. Apparently the Chevy Silverado with the 6.2 liter engine has problems with push rods and bearings. Some have replaced multiple engines. Chevy wants me to pay for new engine.

The valve body in my transmission went out in Colorado where my truck is currently at a dealership under warranty. They are putting my job at risk due to the fact that I bought that truck specifically for work since I travel all over the country for work. I told them that I need the part expedited because I need to leave Colorado and go to Texas for work on the 28th and still no help at all. All I’m asking for is for the part or a new transmission to be sent and installed before the month ends. Because if it doesn’t I’ll get fired if I don’t make it to Texas. And I’ll state this I will pay out of my own pocket even though the truck has warranty if it means the part can get expedited.

Valve Body failure at 5,500 miles. Transmission wouldn't engage in reverse. Truck went into limp mode with a reduce speed message. Valve Body is on back order for 7-8 months. The dealership decided to order a new transmission. Ive been waiting almost two months for the transmission to arrive.

2024 Chevrolet Silverado 1500 Trail Boss While driving, I was given no notice to the vehicle shutting down, couldn't go forward nor backwards. Barely got off the road, waited hours on rollback. Dealership ran a test, said "control valve body " problem. Part is ordered, on back order. GM - taking software to attempt to monitor when? this problem is going to occur? They know about excessive wear, Why not Re-Engingeer this problem instead of selling vehicles that no one knows when this problem of stopping on the road will occur. That would be a safety issue. A hazardous issue of driving on the road and not know when this would happen. If the vehicle doesn't stop from GM software, the rear wheel brakes lock up.

Vehicle with out warring lost significant portion of its power and was put in reduced acceleration mode. This is a brand new vehicle less than 12,000 miles. The truck was towed to a dealership and the cause is a failure with the transmission valve body. Truck has sat a the dealer unrepaired for 2+ months.

At 40mph the transmission vibration on the pedal, and at slower speeds.

The contact owns a 2024 Chevrolet Silverado 1500. The contact stated that while the transmission was shifting gear, there was a hesitation before properly shifting gear. The contact stated that while stopped at a stop light and then attempting to accelerate while making a left turn at approximately 15 MPH, the accelerator pedal was depressed however, the vehicle failed to accelerate immediately but then suddenly surged forward. The check engine warning light was illuminated, and the vehicle went into LIMP Mode. The contact had restarted the vehicle and drove the vehicle a short distance to the residence. The vehicle was towed to the dealer who diagnosed that the transmission valve had failed, and the valve body needed to be replaced. The vehicle had not been repaired due to the manufacturer taking an extensive amount of time to provide the parts. The manufacturer was made aware of the failure. The failure mileage was 7,485.

Unknowns at the moment- truck is at dealership. Dealership stated they have no codes to diagnose the issue. While traveling, most notably @35-45mph, there is a vibration, seemingly through the transmission or transfer case. You can feel it slightly through both the steering wheel and the fuel pedal, along with hearing it. I’ve taken it in several times and told there’s no issue. I will not accept the vehicle back until they are able to explain the issue and repair it. I noticed the issue around 20k miles. I recently took the vehicle to the shop with 32k miles on it as it is progressively getting worse.

On 1/13/25 while driving my new vehicle and arriving at destination I placed vehicle in park for 10 mins and then left putting vehicle in reverse and transmission in reverse would not engage, rolling me into decline slope and almost crashing into home. After receiving help to push vehicle in neutral, I placed car in drive and sent to dealership. Truck seemed fine in drive. Parkway Chevrolet, Tomball, TX inspected vehicle and stated no issues. Possible torque lock but nothing showing and possibly resolved. On 1/16/25 while driving to work, I stopped at gas station for coffee, left truck running. Got back in vehicle and placed in reverse, and again truck would not engage reverse. I received another push out in neutral , placed in drive and then proceeded to return home. While I’m drive check engine light came on, and truck would not go beyond the 2nd gear. I stopped at closest light to turn around and proceed home and the vehicle began grinding gea and jerking my vehicle while in drive. I tried to turn around at a dead end road and could not reverse vehicle and called for tow to dealership. Dealership at opening 7am took in vehicle 2 nd time with my complaint and called at noon. They stated the valve body of transmission needed to be replaced. Further stating it was a faulty issue chevy was aware about but nothing showing and recalled. They said no longer using manufacturer for this transmission replacement and it would be an unknown eta for repair. This is dangerous and unacceptable as it is a new vehicle with a known faulty part.

I purchased my vehicle in July 2024 brand new. I started to experience an engine shudder at about 4500 miles with the truck coasting or on the accelerator around 1500 RPMs. It first began at lower speeds around 40 mph, but now I feel it at high speeds as well. I brought my truck back to the dealership three or four times and they told me that the shudder was due to the active fuel management system in my 2.7L Turbomax engine. A different dealer said that it felt like a torque converter. There are no lights on the dashboard. The dealership I bought it from failed to try and flush the transmission fluid, only documenting that they did not feel the shudder on the receipt they gave me. However, during the test drive, they told me that they can clearly feel it. They failed to give me an explanation why there was no shudder for the first 4500 miles, and that it just started. They also stated that they had not heard of this problem yet, but said that it felt completely normal, which does not make much sense.

I purchased my vehicle from Mak Haik Chevrolet 11711 Katy Fwy. Houston, TX 77079 on [XXX]. Approximately 4 months my Check Engine Light came on and I brought my Truck to Mak Haik Chevrolet to have it checked out. The Service Department could not figure out why the Check Engine Light had came on. They did complete the Recall N242435631 regarding a need to update the radio and serial communication firmware on my truck. On Saturday November 9th 2024, I brought my truck into Mak Haik Chevrolet for the 2nd oil change at approximately 10,000 miles, and the technician could not get the truck to go into reverse. I was given a loaner vehicle and told that they would contact me about the issue once their transmission technician could look my truck on Monday. I was contacted on Monday November 11th2024, and told that the Valve Body in the transmission was defective. Jim Cox, Service Advisor with Mak Haik Chevrolet, explained that he could not find the part, as this is a big issue with Chevrolet across the Country, and he would let me know when he has access to the part. I asked about replacing the transmission instead, and Jim explained that he could not get those in either? Mak Haik Chevrolet has had my truck since November 9th, 2024. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6

my vehicle suddenly experienced decreased acceleration on the highway. A warning message appeared on the dashboard indicating reduced acceleration. When placing the vehicle in Reverse, the vehicle was not able to move in reverse. The dealership diagnosed it as a valve body needing replaced.

THE TRUCK FAILED GO SHIFT INTO REVERSE. HAD TO PUSH THE VEHICLE OUT OF THE PARKING SPACE. WHEN I TRIED TO GO FORWARD THE VEHICLE SHUTTERED AND THEN SHIFTED INTO LIMP MODE. DEALERSHIP HAS HAD THE TRUCK FOR OVER 8 WEEKS NOW AND I AM TOLD THERE IS A NATIONAL BACK-ORDER ON THE NEW VALVE BODY BECAUSE OF THE NUMBER OF TRUCKS REQUIRING REPLACEMENTS.

Vehicle would not go in reverse or shift out of First gear Diagnosed as needing a transmission valve body replacement

Only 6k miles. Couldn’t go in reverse or get out of 1st gear. Brought to dealer, they said it needs a new valve body gor the transmission and there are so many trucks with this issue the part is on b/o for 2 weeks-3 months! In the meantime I have not truck.

Valve Body on transmission failed at 9000 miles resulting in extreme reduced acceleration and it being unsafe to drive. No warning lights appeared until after the part failed. Failed valve body has been confirmed by the certified dealership service center. Replacement valve bodies are unavailable from the manufacturer GM. GM has not issued any formal recall for this part and searching online forums, this is a very common part failure for this vehicle.

On [XXX], my Chevrolet Silverado 1500 Custom, Trail Boss 7,500 miles lost immediate power during driving operations. I was accelerating from a stop and my truck immediately lost power and my RPMs rose drastically without any power to my wheels. In an instant, the truck surged in power and continued to loose it while in traffic. I had to control the vehicle by slowing down. The check engine light appeared and warning messages to reduce acceleration and drive carefully. All of this occurred violently and without any warning. The truck reduced speed on its own and allowed me to drive 35 mph for two miles into the dealership which happened to be close. There is an extreme risk here for anyone who is driving at interstate speeds and this were to happen. After experiencing this incident, I was told the transmission or the transmission valve body required to be replaced by the dealership. I researched this later and discovered an extensive list of year models with the same problem. I was told services bulletins have been issued on this issue, but this is a serious risk to loss of life. I was told today Chevrolet doesn’t have a solution to the valve body problem and I would be without my vehicle until it is found and repaired. I am requesting a formal investigation. My truck is located at Tom Gibbs Chevrolet, Bunnell , Florida. [XXX] , [XXX] , [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Per the dealership service department the Valve Body went out and it is a manufactured misbuild

1. Experiencing intermittent hard shifting accompanied by shock and noise, 2. Unexpected shifting and shifting delays that cause rapid RPM increases. These issues were primarily observed at low gears and worse with stop and go traffic. The check engine light appeared approximately one month after noticing these symptoms.