2023 Chevrolet Silverado 1500 Power Train

A few times before engine locked up, i was driving and out of no where it would shut off/lose all engine power and woukd shift to N automaticlly. Those 2 times it happend on the highway had to pull over to be able to turn it on again. The 3rd time it was at a busy intersection all 3 times i was with my wife and kids so was very dangerous. 3rd time it never turned on again with a low oil pressure message. Got it towed to the dealership and they told me the engine was locked up. So now at the dealer getting a new engine and radiator ect.

I have an 2023 L87 engine that could stop functioning at any moment. I'm retired and bought this vehicle as my last truck. I don't feel safe driving it on long trips which is why I bought it. Also the transmission shifts rough from 1st to 2nd when I accelerate. When I inquired about the transmission problem at the dealership the showed me a letter sized notice saying this might be a problem. But I was not notified about this when I purchased the truck. I would prefer to just return the truck as I have it financed with GM Financial with no money down and am willing to just eat what I have already paid to get out of this ticking time bomb which I'm not comfortable driving long distance as [XXX]. Please advise. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving at low speeds with light acceleration, the truck seems to sputter. When activating trailer mode this issue stops leading me to believe there is an issue with the torque converter. By searching forums, this seems to be a known issue with these vehicles. With it being as widespread as it is, I fell like this constitutes some sort of recall or customer satisfaction type of action.

The vehicle has been exhibiting occasional hard shifts over the last 2-3 months. Over the last 2-3 weeks the frequency has increased. While operating the vehicle at approximately 30 mph the rear wheels temporarily locked during one of these events while my wife was operating the vehicle. There was no indication that this was going to happen and no indication after the event. We took the vehicle to the dealership where they performed a diagnostic but found nothing wrong. In the week since picking up the vehicle I have been operating it. I experienced two occasions where upon trying to accelerate at approximately 30 mph there was a severe jolt that caused the traction control warning light to flash. This was under minor acceleration just to maintain speed when going uphill. There was no indication prior to the event and once it had concluded the lights went off. I also experienced an occurrence of the rear wheels locking temporarily. I was traveling at approximately 40 mph on flat ground and gently stepped on the accelerator to maintain my speed in traffic. The rear tires locked for 1-2 seconds to the point the tires were squealing and you could smell burning rubber. There was no indication prior to the event that it was coming. Given my necessary reaction I was unable to see if there were any indicators or warnings present. Following the event there were no indicators illuminated. Outside of these events the vehicle seems to operate normally. It runs well and generally shifts smooth. However, the rear wheels locking up unexpectedly presents an unacceptable hazard that is not resulting in any evidence that the dealer can use to troubleshoot.

GM has been manufacturing Silverado Pickup trucks with faulty transmission valve bodies for several years. There has been ongoing issues for several years with the defective Valve Body part. I purchase a 2023 for my business. It is presently at a dealership waiting on the part. It is my understanding GM has so many of these issues they can't keep up with the parts. I am told it could be weeks or months to get this part. Online you can see countless others who have waiting 2-3 months for a replacement Valve Body. How can they keep making the trucks with these defective parts. I still have to pay my $1,300 monthly payment while I have no use of my vehicle and they do not pay the full cost of a rental.

My throttle body went out. Horrible shifting and wheel lockup.

Driving at highway speeds, truck downshifted to low gear causing a sudden deceleration and check engine light appeared along with 'Service Transmission' message. Was almost rear ended by multiple cars, but was able to guide truck to the shoulder through traffic. Shut down truck and restarted with message still appearing although gear shifting seemed to be normal. After stopping at a gas station to look up error, on next restart error cleared and truck drove for almost a week without issue and ~300-400 miles. Once again driving at highway speeds the same scenario happened with downshift in heavy traffic and had to pull to the shoulder. Waiting to bring to dealer, but mileage on truck is just over the 60,000 mi warranty period. Codes on reader indicate P0700 and P0747.

Vehicle vehicle is shuddering while driving at speed limit as well as accelerating. Based on research, it is apparent that there is an issue with the torque converter in this year model of truck. I have found more than 50 individuals online who have dealt with the same issue.

While driving 55 mph and towing my boat on a 2 lane paved road , I started up a slight incline and the transmission downshifted so hard that the rear wheels locked up long enough to throw us into the dash even with seat belts on. I turned around an drove back home with it locking up again. No codes or lights on the dash. Took it to dealer June 26,2025 for dealer to diagnose issue. They kept it overnight and drove it about 60 miles, called me the next day to pick it up saying they could not duplicate the rear wheel lockup and since there were no codes there was nothing to fix. Tried to tell me it was my boat trailer causing the issue. Boat trailer has surge brakes, nothing electrical on trailer brakes. Over the next couple days the rear wheels locked up 2 more times. Always as I started up an incline going around 50-55 mph. No lights or codes July 2, 2025 we recorded on video 2 rear wheel lockups with the second lockup starting a slight fishtail on dry pavement and leaving a 5 foot skid mark. Went back to the dealership with the video and they said again if there are no codes they can’t fix it and they would try to duplicate the issue for me to leave the truck and not give me a rental vehicle , and no timeline on how long they would try to duplicate the issue. I did not leave my truck there and they kept promising to call me when they had a loaner vehicle for me to use. On July 14, 2025 ,while still waiting for a loaner vehicle the transmission finally locked up the rear wheels and check engine light came on. My mileage was 43078, it took 1,193 miles to finally throw codes that the dealership would fix. Codes were P0700 and P0747. These are same codes for safety recalls N242454440 and N242454441. Obviously my vin is not included in the recalls but the dealership should have put the software on my truck the first time I was there on June 27th, the same day they completed the Pa.state inspection on my vehicle. I wouldn’t have had to experience this unsafe conditions.

While driving at ~30 mph the rear wheels locked up momentarily with no warning and without applying the breaks. The back of the vehicle fish-tailed while the tires slid. Following the incident the check engine light came on and the vehicle went into limp mode and would not go more than about 25 - 30 mph. I immediately took it to the Chevrolet Dealer. The dealer indicated that the codes showed an issue with the transmission control module. It is currently at the dealer to be repaired. The vehicle has 51917 miles and is still under power train warranty. There was no warning or indication something was about to happen prior to the incident. The truck is a 2023 Silverado 1500 with the 2.7 liter Turbo engine with the GM 8 speed transmission.

Vehicle check engine light came on and message displayed on dashboard indicating (loss of power) the transmission fluid temperature rose from 140* to 190* in seconds with vehicle coming to a complete stop while driving when trying to accelerate the vehicle it won't move but the engine rpm's were staying between 3 & 4 when accelerating.

Over the past 4–6 months, the transmission in my 2023 Chevrolet Silverado 1500 has repeatedly failed in a way that creates a serious safety hazard. On multiple occasions while driving at highway speeds, the transmission has locked up the rear end, causing a sudden and violent loss of control. These incidents nearly resulted in collisions and could have caused serious injury or death. The truck will no longer shift at all and is now completely inoperable. These failures happen without warning and present a severe risk of total loss of vehicle control. Date(s) of Incident: Multiple occurrences between approximately March 2025 and August 2025 (exact dates unknown). Dealer / Manufacturer Response: I contacted Chevrolet Customer Care and multiple Chevrolet dealerships in my area (including John Megel Chevrolet, Dawsonville, GA). My most recent case was closed without resolution. I have been denied a loaner or reimbursement for a rental vehicle, and I have been told that the repair could take at least a month before even being assessed, with additional delays for parts. Consequence: This is not only a serious safety hazard but also a severe financial and employment hardship. I rely on this truck for my job, and without it, I cannot work. I am now three months behind on my truck payments and other bills, and I am on the verge of losing my job because I have no transportation. GM’s failure to repair or provide alternate transportation has left me stranded, financially unstable, and at risk of unemployment — all while the vehicle remains under an extended warranty. Request to NHTSA: I am requesting that NHTSA investigate whether this defect is part of a wider safety issue affecting 2023 Chevrolet Silverado 1500 transmissions and determine if a safety recall is warranted.

WAS DRIVING HOME AND TRUCK STUTTERED THREE TIMES THEN WENT INTO LIMP MODE, DROPPED TRUCK OFF AT DEALERSHIP AND WAS TOLD IT HAD A LOOSE WIRE SO THEY PLUGGED IT BACK IN AND CHARGED ME $200. NEXT DAY IT HAPPENED AGAIN AND BROUGHT IT BACK WHEN THEY TOLD ME MY TRUCK NEEDED A REPLACEMENT VALVE BODY. I'VE NOW BEEN WAITING OVER 2 MONTHS PAYING $858.18 A MONTH FOR A TRUCK I CANT DRIVE

Transmission has a stalled while driving car

The vehicle is now at the dealer for the second time regarding transmission shifting issues. First visit I was told they can find nothing wrong despite my experiencing transmission slipping, loud clanking on shifting, and severe jolting when shifting. While having a travel trailer hitched to the truck after the first visit, I experienced all the same issues with the addition of transmission overheating warnings on the dashboard and near complete stoppage of the vehicle at highway speed. The same dealer now says the transmission "valve body" is defective and is being ordered. Due to Towing a trailer with this truck (much lighter than rated capacity) I have the transmission fluid changed on nearly every oil change. The Transmission filter has been changed on the recommendation of my mechanic, strictly due to quantity of fluid changes.

Driving down the city street the vehicle shuttered, the message "Reduced Acceleration Drive with Care" message appeared. Engine RPM increased. Transmission unable to change gears. only Park, Reverse, Drive (seems to be low gear). Then "Service Transmission Now Unable to Shift Soon" message appears. Now waiting on Value Body replacement parts. This is a known issue with over six month wait for parts across the nation.

Everyone I know that has this trucks has had transmission problems now mine is say selanoid is stuck in transmission but it throws a new code every time same issue

Valve Body failure on transmission

Valve Body failed - truck currently at dealership The valve body failed as I was pulling out of a gas station - emergency brake immediately engaged and kept re-engaging as I was trying to make it across the street into the parking lot. Truck could not go more than 5 mph and I was stuck and almost hit. Problem has been confirmed by the dealer after it was towed directly there. Unknown if component has been inspected outside of service department. Truck initially would not remote start using key fob, but then made it to gas station fine without any further symptoms. After gas station, car started severely shaking then emergency brake engaged and would not accelerate.

Engine coolant valve failure causing vehicle to go into reduced power mode while traveling on highway causing vehicle to travel at a slow unsafe speed in relation to other traffic. Check engine light activated, reduced power activated. Chevrolet dealership confirmed engine coolant control valve issue. Engine control valve must be replaced before vehicle can be driven. Engine Coolant control valve is on back order. No part replacement time frame due to back order. Safety concerns with reduced power mode on roadway with speed limits greater than 45 mph.

I was towing my boat, attempting to get on a 4 lane highway via on ramp. Truck refused to shift and went into limp mode as I was attempting to merge. Vehicles behind me on the ramp and coming up behind had to slam on their brakes. Diagnosed as a bad valve body. The issue is very widespread across GM vehicles, GM has a national backorder on the valve body as there are a ton of vehicles waiting for them. GM has not issued a recall at this time.

On the freeway transmission downshifted to first, loud bang and skidding to limp mode vehicles behind us skidded off highway and others changed lane causing chaos yelling screaming angry drivers, not a great situation, I had the recall done, it was just a software update that detects a problem and puts it into dangerous limp mode at high speed.

Transmission shutters and shakes and dealer said it’s normal for the silverados to shake and shutter at highway speeds even though it’s brand new . and then got treated horribly for getting it towed in

Valve body went bad... like so many others. No ETA on part from GM. Not a good situation from a business owner that needs a truck to conduct business

During gear down-shift the rear wheels briefly lock up. This event can be duplicated easily at around 45mph, by slowing due to uphill grade or slowing traffic, then upon normal application of throttle to resume course the transmission shifts to next lowest gear (3 or 4, not sure) there occurs a brief and sudden horrendous jerk as the rear wheels lock & skid. The event lasts less than 1/4 sec, but happens multiple times per day as that speed/load condition is frequent. On occasion, the same can occur in a parking lot ~10mph, but isn't as violent. The first occurrence was at mileage 38,000; the vehicle now has 45,000 miles. This appears to be the same issue as NHTSA Recall No 24V-797, which does not include my vehicle's production year.