2024 CHEVROLET SILVERADO 2500 Power Train Problems

When driving, between the speeds of 40-50mph, the wheels would lock up without warning. This happened 4 times during the month of January, sometimes in 4wd. This occurred at speed when the vehicle seemed to be upshifting. Control of the vehicle would be lost during the lockup as the wheels would stop rotation entirely and rather violently. Check engine light came on after the 4th incident, reducing power and a code of P0747 "Pressure Control Solenoid "A" Stuck On". The transmission valve body was repaired by the local Chevrolet dealership under powertrain warranty. This is a known issue on previous years of this truck with the same transmission but has not been expanded to cover this vehicle. Thankfully, I was able to maintain contorol and was not in traffic when this occurred. I notified the dealer that the vehicle was shifting very hard during the last visit but no codes...

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that while driving at various speeds, the vehicle entered LIMP Mode. During the failure, the transmission became stuck in 5th gear, and the vehicle operated at reduced speeds. The vehicle was turned off but failed to immediately restart. After approximately 15 minutes, the vehicle restarted, and the failure was self-corrected. The failures had occurred while hauling a heavy load and while not carrying a load. The message "Decreased Acceleration" was displayed, and the check engine warning light was illuminated. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The transmission fluid was flushed and refilled, but the failure persisted. The manufacturer was not yet notified of the failure. The failure mileage was 54,000.

My 2024 Chevrolet 2500HD Duramax experienced a forced emissions derate event with a speed-limited countdown. The vehicle suddenly lost normal operating capability and became unsafe and undrivable. The truck was disabled in Enid, Oklahoma and had to be recovered and transported to a dealership. Prior to failure, the vehicle showed abnormal DEF/emissions behavior. The failure involves the SCR/DEF emissions system. I later confirmed this vehicle has a completed Product Emissions Recall for SCR Fault Detection. Despite that recall, the emissions system failed and triggered a derate and loss-of-mobility event. The truck is currently at Classic Chevrolet in Owasso, OK for diagnosis.

Transmission lags and slips while over reving the engine. A local gm dealer has confirmed transmission issues and slippage

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that on one occasion, while attempting to stop the vehicle, the brake was depressed and the rear wheels locked up, and the vehicle jerked extremely hard. The contact stated that when the vehicle jerked, it felt like another vehicle had crashed into the rear of the vehicle. Additionally, the contact stated that on several occasions, while releasing the accelerator pedal, the transmission downshifted extremely hard. There were no warning lights illuminated. The vehicle was taken to a dealer, where it was diagnosed, and determined that the valve body in the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 10,000.

Transmission has locked up briefly during decelerations, has been making grinding noises, has high transmission fluid temperatures, hard shifts during acceleration and deceleration, and has slipped during acceleration.

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that while driving at various speeds, the vehicle lost motive power and decelerated. The vehicle was taken to the local dealer to be diagnosed, and it was determined that the transmission valve body was faulty. The valve body was replaced and reprogrammed, but immediately after retrieving the vehicle, the failure reoccurred while driving approximately 45 MPH. The cause of the failure was not yet determined. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 62,000.

The differential, front right axil "housing" is rusted to the point that it is pitting. The rust completely covers the entire right axil housing and does not come close to matching the light corrosion when compared to the rest of the differential or anywhere else on the vehicle. These indicators lead me to believe the housing was in a corrosive environment prior to being installed onto the differential where both the internal and external surfaces of the housing were exposed to same corrosive environment. Several concerns: If the inside of the axil housing is rusted as bad as the outside, the integrity of the axil has been compromised; Internal rust contamination will lead to premature failure; the housing was not properly heat-treated; no vehicle should be delivered brand new with this level of rust on any part. The issue was pointed out to GM shortly after purchased new. The vehicle...

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that while driving at 45 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. An unknown warning light illuminated, and a transmission message was displayed. In addition, the RPM was fluctuating. The vehicle was taken to the dealer, where it was diagnosed that the transmission valve body needed to be replaced. The vehicle was not repaired because the part for the repair was not available. The vehicle remained with the dealer unrepaired. The manufacturer was not informed of the failure. The failure mileage was unknown.

My truck had approximately 55,000 miles on it when the incident happened. I pulled out of a store and began going down the road and the rear wheels locked up slamming everything forward and the truck and leaving us almost rear ended. The truck was stuck in one gear after breaking the tires free with check engine lights flashing and the dash saying reduced power. It has since been at the dealership for 3 months waiting on a valve body with no end in sight. There is apparently a national back order on these faulty parts because of how common this high speed rear wheel lockup is so I am left without a vehicle or an end in sight.

While towing my travel trailer at 55 mph the truck rear tires locked up causing an alerting situation. The transmission automatically shifted out of tow/haul mode, the CEL illuminated and the following message appeared on the dash "reduced acceleration condition, drive with caution". This event happened a total of 3 times within a 20 mile distance. Because it was a short burst and I was traveling on a straight section of roadway, the risk of accident was moderate. This would have been a high risk of danger if I were on a curving downhill section of roadway. The situation was confirmed by my local dealer through a diagnostic check exhibiting a P0747 and P0700 error code. There were no CELs or other warnings prior to the lockup. The diagnosis was a problem with the transmission valve body. A new valve body was ordered and arrived 14 days later. After the...

Truck went into “Reduced Acceleration” or “Limp Mode” while pulling my camper. Took truck to Kool Chevrolet in Grand Rapids, MI. They confirmed it is a bad Valve body on the transmission. No estimated time from Chevy on getting a replacement valve body. They confirmed this is a widespread known issue and could be weeks if not months. I have a family camping trip planned for the upper peninsula of Michigan in mid July and they aren’t giving not giving me any indication that I could have my truck back by then.

Driving on interstate 10 in Arizona transmission suddenly shifted down hard and then into limp mode with Check engine light. Took to Auto Nation Gilbert Az May 10th they diagnosed valve body failure. Safety was at risk to to vehicle suddenly slowing down in heavy traffic.

My business work truck started not shifting properly. I dropped it off at Mirak Chevrolet in Arlington, MA on 4/29/25 and they diagnosed the vehicle needing a valve body part # 24065357. GM/Chevrolet has been unable to source this part and was unable to provide an eta. I immediately contacted GM and my case # is [XXX]. Then it was approved and escalated for a new transmission and same issue unable to source part and no eta. This is my business vehicle that has not been operable since [XXX] due to a manufacturer issue. No fault on my end. This is a brand new vehicle that should not have these type of issues. I have lost revenue, income, jobs, and I don't have a replacement vehicle. I have a loan on this vehicle that I am making payments towards but there is no end in sight. It has been a...

While driving the transmission shifted very hard felt like it was going to shatter or lock up this happen twice. It also lacked power due to not shifting properly. It coded for transmission issue. I spoke to 2 different Chevrolet dealers service writers, the 1st did noy have a transmission but told me this was a known issue that the valve body for the transmissions fails and recommended another dealer. The dealer notified transmission valve block failed a known problem with the valve block being on back order due to this issue. The truck know sits at the shop awaiting repair. If the transmission fails or locks up in a 2500 truck, could be towing a trailer like I was, would result in an accident.

Owner from brand new (16 miles) multiple complaints through ownership of harsh shifting, jerky throttle on and off, excessive engine braking, and have been stuck on the side of the road 3x due to the same situation. Never was a code thrown so I was continuously told there’s “nothing wrong.” On [XXX] I was driving [XXX] out of Denver making the climb towards [XXX] to home. As I had my cruise control set at 65, out of nowhere my truck locked up what seemed to be the rear wheels completely, causing my rear end to sway violently. I immediately slowed down and pulled over with no indications or lights being illuminated on my dash. I turned the truck off and let it sit for 10 minutes and restarted it. Having no issues I signaled back onto [XXX] and the truck accelerated to nearly 65 with no issues. As I hit...

The truck went to the dealer for recalls on March 21, 2025. The Truck is still within the bumper-to-bumper warranty. Recalls consisted of tailgate fix, TCM & ECM updates. The truck was returned to me approximately a week later. I noticed a significant loss of power. I took the truck back to the dealer and told them about the issue. They had it another 2 days and returned it to me, saying there was nothing wrong. Approximately a week later, I was driving down the road and the check engine light appeared on the gauge cluster. I immediately drove the truck to the dealer, and the DTCs were emissions-related. The service advisor, Jeff, told me to keep driving the truck, and it might go away. I drove the truck home, 20 mins away from the dealer, and as I pulled into my driveway, a message on the gauge cluster said,...

I purchased a 2024 Chevrolet 2500 HD Crew Cab High Country and reported harsh shifting after 3 months 3,000 miles and told that nothing was wrong. Brought truck back in in February 2025 with 12,000 miles due to erratic shifting and loud whining noise. After 4 days in the shop they agreed that there was a problem but didn't know what the problem was. One week ago on Sunday 3/23/25 While driving the engine would rev up for acceleration but didn't speed up. Got to my son's house two miles away. I went leave 20 min. later and the transmission died completely. It would not go forward or reverse.

Purchased a new 2024 Chevy 2500HD (Custom, 6.6L gas) on 12/14/2024. After doing some research on maintenance items for this vehicle, I observed the following: Rear axle - Little over a quart low Front axle - a little over .5inches low It was determined these fluids were not filled to the proper level from the manufacture. The dealership and extended warranty company (provide by the dealer) refused to warranty these issues.

Truck would downshift hard coming of exit or slowing down. This would sometimes lunge you forward into the seatbelt causing it to catch. The transmission would also shift hard moving up to interstate speed between 50-60mph. The dealership has determined that the valve body has failed in the transmission.

Complete engine and emission fail while driving. Complete loss of power. Created a serious safety issue while driving due to other traffic and inability to move vehicle from road side to safe area. Problem was confirmed by mechanic. Contact to GMC resulted in no response. Mechanic has reported numerous other GMC trucks with the same issue. Check engine light came on shortly before and then went off again. Contact was made with dealer as well as GMC directly regarding the issue.

Drove to a residence to make a delivery. Turned truck back on and went to back out of driveway and the truck started shaking very violently and could not turn truck right or left. Chevrolet technician is stating the power steering pump fell apart sending metal through engine.

I bought a new 2024 HD2500 with the 10 speed Allison. My truck is 1.5 years old with 8,900 miles on it. About 50% of its life I tow a 5,000 lb travel trailer. My Valve Module went out on it. The truck went into "limp" mode. Would run (very noisy) but would not move in either gear. Its been disabled at the Chevy dealer for 9 WEEKS. No ETA on a part. The internet is loaded with issues related to the 10 speed transmission being distributed by Chevy. Action by the NHTSA recommended. I live in a small town. There were 2 of the same trucks brought in a couple days ahead of mine and 8 more after my truck. ALL with the same problem. 2024 model year. The service manager at the dealer where I bought my truck at ( a larger town) told me there were TOO...

I crossed over the west bound lanes and turned left in the east bound lanes and under slight acceleration when my truck started jerking as if i was braking/accelerating back and forth. My diesel engine then went into limp mode and my transmission was stuck in a low gear and would not shift. I could only drive approximately 20 mph at 3000rpm. The people coming up behind me had to slow down because i couldn't pull over.

This vehicle has a severe transmission shift issue that will likely cause an accident at some point. This vehicle has an Allison 10 speed transmission and began shifting extremely hard or violently from 7th to 8th gear in November of 2023. This problem began when pulling a travel trailer that is weight rated well below the capacity of this truck. This hard shift causes vehicle occupants to lunge during the event and it is feared that a catastrophic failure will occur, resulting in a vehicle accident. The vehicle was taken to the dealership where purchased as it is still under manufacturer’s warranty, and in March of 2024 the dealership performed a software update and transmission “re-learn” which solved the issue until the truck was used to pull a travel trailer again. The issue returned in November of 2024. The truck was returned to the dealership for follow up but the...

Limp mode; check engine light on and dealer stated valve body needs replacement, parts on national back order. Truck does not have even 300 miles on it!

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the vehicle briefly jerked and then jolted. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to a dealer, who was unable to duplicate the failure; however, the contact was informed that the power train control module was reset. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline to report the failure. The failure mileage was 50.

Transmission failure on interstate i90, truck down shifted violently and check engine light came on and warning on dash read speed reduced drive with caution. Took truck to gm dealer on August 1 2024 who said the transmission shift solenoid plate has to be replaced. Gm dealer still has my truck as of October 16 2024 and all I they can tell me is that the part is on back order and they have no idea when it will be available. This could have caused a serious accident as I was also towing a 3500 lb trailer at 65mpg at the time with the speed being reduced so quickly by the failure.

Issues with transmission when taking off at times stays on 2 or 3 gear. When arriving at a yield/ stop and take off again gives a kick/ jerk when take off