Power Train Problems of Chevrolet Silverado 2500 - part 1

While driving at a speed of around 40 mph on a paved city street in bozeman, mt, I heard and felt a super loud clunk in my chevy engine transmission or drive train. . I immediately stopped to see if something ran into the vehicle. No apparent visual damage of any kind. It felt and sounded like like something jammed within the transmission or drive train. The truck has less than 12k miles and has been babied so far. I love the truck. Oil level is normal and nothing leaking underneath. . I took it immediately to billion GMC in bozeman. They found nothing wrong however the service manager recounted this regarding another customer who described the exact same issue with the same year vehicle and same transmission: another GMC owner experienced the same symptom before the transmission seized at highway speed and locked the wheels. Because this presents a potential loss-of-control hazard, I am requesting that Chevrolet open a technical assistance center case, document all diagnostic findings in writing, and determine whether the vehicle is safe to operate before returning it to me. The service manager who recounted this event is named jay.

See all problems of the 2025 Chevrolet Silverado 2500 🔎.

Safety issue. The raised cruise control speed set button on the steering wheel is prone to being touched when rotating the steering wheel while making sharp turns when driving through parking lots at low speed. If the distance cruise was previously set at say 45 mph the last time it was used, and the set button is very briefly hit upward when rotating the wheel through your hands to the left, it can inadvertently cause the truck to start accelerating to that previously-set speed. The cruise button needs to be programmed such that at certain steering angles it will not respond to inputs. This is very dangerous. I Ave had this happen to me at least 5 times. Hitting the brakes stopped the acceleration. I reported it to the dealer as a potential engine surge but they could not reproduce it. I just recently realized what was happening. I believe this can easily be addressed by a steering angle lockout of the button. Other issues: drivetrain vibrates occasionally and shifts very hard (drivetrain literally slams through gear change) when leaving driving from a stop a slow speeds. Dealer cannot replicate. This diesel truck gets very poor mileage possibly from spending too much time in regeneration mode. Truck is super sensitive to fuel. Mileage varies drastically from fill up to fill up depending upon station. I believe the fuel cetane content affects regeneration in unexpected ways. I buy fuel at name brand stations but mileage varies drastically from vendor to vendor. Mileage average goes down to about 11 mpg much of the time due to time in regeneration. Dealer has no comments. I know hd trucks don't have official mileage ratings but this is just crazy. I drive light on the accelerator. Rarely achieved up to 21 mpg but average mileage runs about 11-12. I believe this to be a fault with these trucks as I have read complaints from many others. The infotainment system frequently loses all audio, including turn signal sound, nav. Gm has no fix. Possibly software.

The vehicle will not allow the truck to be turned off everytime, it states the truck must be in park to be turned off, and the truck is in park. The engine lost power and staleld twice, and loses accelerator power multiple times. The transmission has dis-engaged 3 times. All of this since July 2026. The truck has 54,000 miles on it.

See all problems of the 2022 Chevrolet Silverado 2500 🔎.

While launching a boat. Truck was in park and boat off the trailer. I was out of truck 30' on the dock reaching for boat rope ( was a single person boat launch). I heard a loud pop and the truck went into the lake till it hit the dock. Several witnesses to this story. Glad I didn't have to go behind the truck to undo my boat winch. I would have been killed.

The contact owns a 2023 Chevrolet Silverado 2500. The contact stated that while driving at various speeds, the transmission was slipping. Additionally, the contact stated that while driving 60-70 mph, the vehicle stalled. No warning light was illuminated. The contact pulled over to the side of the road. Upon inspection, the contact became aware of a coolant leak underneath the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the turbo coolant inlet had fractured. The part was replaced. Additionally, the dealer determined that the transmission was in working order upon inspection; however, the failure persisted. The vehicle was not repaired. The manufacturer was contacted and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 83,000.

See all problems of the 2023 Chevrolet Silverado 2500 🔎.

I own a 2022 Chevrolet Silverado 2500hd equipped with the 6. 6l duramax diesel engine and allison-branded 10 speed (10l1000) automatic transmission. VIN: [xxx]. While pulling away from a traffic light and accelerating to approximately 20 to 30 mph, the transmission suddenly began shifting harshly and erratically, experienced delayed engagement, unexpectedly downshifted, and would not shift into overdrive. At the same time, the check engine light illuminated and a reduced engine power warning appeared. There were no warning lights, messages, or transmission symptoms prior to this incident. I pulled into a parking lot for approximately one hour, but when I resumed driving, the same failure occurred again. The transmission malfunction created a safety concern because the vehicle unexpectedly lost normal shifting and power while operating in traffic, making it difficult to accelerate and maintain speed safely. I contacted onstar, which reported both an engine and transmission fault. I then drove the vehicle to my independent diesel mechanic, who diagnosed a failure of the transmission control valve body caused by an internal solenoid that is not serviceable separately, requiring replacement of the complete transmission control valve body assembly. The repair has been completed, so the original failed component is no longer available for inspection. The failure was confirmed by an independent service center. The vehicle has not been inspected by Chevrolet, law enforcement, or an insurance representative. I contacted general motors to determine whether my VIN was included in the existing transmission control valve recall and was advised that it is not. I am submitting this complaint because my truck experienced the same symptoms and the same component failure as vehicles covered by the recall, despite my VIN not being included. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My 10l1000 transmission had a catastrophic failure internally which caused it to rough shift, sudden down shifting, not want to shift into gear at all, and high engine rpm prior to roughly shifting. I took it to the chevy dealers mechanic the very next business day, only to find out that from the mechanic that this is a common occurrence with chevy transmissions in my truck and google also verified this to be a common problem. The mechanic from the chevy dealership also stated that there was larger metal chunks than normal. My truck is available for inspection ASAP. The manufacturer and VIN lookup contradicts the mechanic and google stating no issues or recalls for my transmission. After speaking with the manufacturer, I became highly concerned due to their unwillingness to address the obvious issues known by so many. If I wasn’t such a safe driver and immediately brought it to the mechanic, this could have caused a terrible accident leading to extreme bodily harm or death even. According to a quick google search of the 2021 chevy 2500 transmission problems and my mechanic this is a well known problem even though chevy manufacturers refuse to acknowledge the issue or implement a recall. There was zero warning lights or lamps to indicate this problem. I am extremely concerned with the manufacturer’s response to my concerns and their unwillingness to correct this issue before it cost someone their life. This catastrophic failure with the transmission having metal shavings throughout it and extreme damage to the transmission valve body and being well known and reported by many other customers has to be addressed. Chevy’s unwillingness to acknowledge people’s claims in this has left me with around $10,000 in monetary damages and could have lead to bodily harm or death if I would have been traveling on a main highway or interstate when it occurred. At the very least chevy needs to be held responsible for this known and reported issue before it causes death or injury.

See all problems of the 2021 Chevrolet Silverado 2500 🔎.

The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the transmission was slipping and shifting hard. The contact associated the failure with NHTSA campaign number: 26v083000 (power train); however, the VIN was not included. The dealer was notified of the failure, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.

See all problems of the 2020 Chevrolet Silverado 2500 🔎.

2018 chevy Silverado 2500diesel duramax (63,000 miles & garage kept) while pulling 37' camper on flat terrain, push rod bent and broke in half - violently shaking and missing; engine was ruined. Engine light did not appear until after it started shaking. Luckily this happened before crossing over steep mountain where we would not have been able to get off road or control vehicle and camper behind us. Truck was towed to chevy dealership; had to wait until 10 days to learn extent of damage. Repair cost was going to be $26,000 and though our truck's trade in value was $37000 before this event, we were offered just $12000 for trade in. Though we had been led to believe that a chevy duramax was highly regarded for durability and longevity, we decided to purchase a ram truck. No more chevys for us! contacted chevy customer assistance but because we traded, they would not offer any financial assistance because we took the dealership's offer and traded the next day. We just couldn't stand a $26000 hit on an 8 year old vehicle and had to absorb that amount with our trade in.

See all problems of the 2018 Chevrolet Silverado 2500 🔎.

Transmission control valve failed causing my vehicle to drop from 70 miles per hour below 40 miles per hour rapidly on the highway/interstate which could have caused a fatal crash. Called onstar and was told my code showing was p0747 meaning service now. I called dealerships to get an appt next morning and this happened in the evening and was told the soonest I could get in was a week away, most was longer than that. I did worked in and was told my tcv needed to be replaced. I was told this is a common problem with this truck but when I contacted gm they told me they could only do a 30% courtesy discount because my 2400 chevy Silverado 2500hd already had 83,000 miles on it and is out of warranty. I have researched this and NHTSA already has a bulletin in place for this same issue but it didn’t include my VIN so they told me there was nothing more than can be done. This is a huge safety risk and concern. My daughter and wife could have been driving my truck and it could have caused a very bad wreck. My vehicle had no prior warning until this happened. My vehicle did say reduced engine performance and my check engine light came on during the event but nothing prior. Now my truck shifts hard and gets hot fast. We opted not to drive and took it to a local dealership for repair due to the risk of injury if we continued to drive it to us and others. We are not put out a vehicle and monthly payment as the part is on back order. Gm pretty much is brushing us off and told us we can file a complaint with NHTSA if we feel like it’s something more that needs done. Bulletin number in place for this issue on other vins is n242454441. I don’t want this to happen to others so I wanted to report it plus I feel like gm should have cover total cost especially with it being a known issue. Thanks.

See all problems of the 2024 Chevrolet Silverado 2500 🔎.

Was driving east on i40 between hinton and calumet when my truck through a check engine light and service parking break. I pulled over it smelt like burning wires I cleared the codes with a code reader and turn the truck on the accessory when smoke filled the cab I got out and the truck was in flames.

The contact owns a 2004 Chevrolet Silverado 2500. The contact stated that while driving 60-65 mph, the vehicle experienced reduced power and went into limp mode. The contact pulled over to the side of the road. The contact turned off and restarted the vehicle after several minutes, as per the owner's manual. The transmission warning light was illuminated. The vehicle was taken to the dealer to be diagnosed. The contact was informed that it could take 1-2 weeks to diagnose the vehicle, and several months to repair the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a claim was filed. The failure mileage was approximately 50,000.

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The contact owns a 2023 Chevrolet Silverado 2500. The contact stated that while driving at various speeds, the transmission was slipping. No warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was repaired; however, the failure recurred days later. The vehicle was taken back to the dealer, where it was lifted and inspected, and the contact was informed that no failure was found. The contact stated that the failure persisted. The vehicle was not repaired. The manufacturer was contacted and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 105,000.

While driving the vehicle, the vehicle jolted and made a clunk noise. The check engine light came on accompanied by a message on the dash stating "reduce acceleration, drive with care". The vehicle went into "limp mode", and appeared to be engaged in a single gear. The vehicle was traveling at approximately 30 mph when the transmission malfunctioned. The vehicle was taken to my local chevy dealer, where they scanned the vehicle and determined that the valve body was the issue, based on the scan result. The vehicle is a 2024 chevy Silverado 2500hd (gas). It has 29k miles on it. The vehicle was purchased as a "certified pre-owned" (lease return). Within 20 miles of being driven from the dealer after purchase, I experienced a jolt & clunk. The failure occured 42 miles later.

My 2020 Chevrolet silverado has locked up a couple times on 4/2/26 I immediately drove to the robins chevy dealership, the service writer and I discussed the recall of the transmission, the next day I was sent a estimate of 6800. 00 dollars to replace the valve body of the transmission, I asked why am I responsible for the replacement cost due to a known recall of the transmission valve body? I was instructed to call gm directly which I did and no action was taken, I was told to speak to the dealership manager. I need help with this matter.

The transmission on my truck down shifted and made it so I lost all power while driving. If I would have been on the freeway it probably would have killed me or caused a serious accident. It is at a shop waiting to be inspected but they said it was the valve body in the transmission. No warning lights came on at all, and the shop had to plug a computer into my transmission to get the codes. Gm needs to make this right because it is going to kill someone or cause harm if a bad accident happens due to failure at freeway speeds.

While driving in heavy interstate traffic on March 18, 2026, the vehicle suddenly downshifted hard to 2nd gear, locking the rear wheels and causing the vehicle to slide out of my lane. The truck then entered limp mode and appeared to be stuck in 2nd gear. I immediately called my chevy dealer to make an appointment to drop the truck off. While researching, I found there was a recall for the same vehicle symptoms, but my truck falls outside of the recall. The truck is currently at the dealership for a valve body replacement, due to a known issue with the allision transmission where TSB's have been issued. Chevrolet should be more proactive and recall the trucks, and replace the transmissions instead of a bandaid fix, before someone with less driving awareness/experience is involved in an accident.

Operator of this vehicle was commuting and truck started to slow down and chug. Vehicle hesitated when operator applied gas pedal. -transmission cooler inlet/outlet pipe as per Chevrolet known issues. -safety of driver at risk as failure happened in heavy traffic, unable to pull to safety -yes confirmed by authorized repair facility -part inspected by authorized mechanic. -no warnings, symptoms, prior to failure.

My 2024 Chevrolet Silverado 2500hd bison zr2 (VIN [xxx] ) suddenly lost all power steering, acceleration, and propulsion while driving my children to school at approximately 8:00 am on March 16, 2026. The truck came to a complete stop with no warning lights or prior indication. This matches the exact ‘critical issue with the engine and transmission system’ alert I received from onstar advanced diagnostics the same morning. Steering was completely unresponsive and I had no acceleration. My children were passengers — this was extremely dangerous. I have not driven the vehicle since and have requested towing to the dealer. Please investigate under any open probes into 2024 silverado hd power-loss and steering failures. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Transmission control valve body (recall #n242454440) ?your truck is part of the massive recall issued late last year (expanded in February 2026) regarding the 10-speed allison transmission. ?the problem: internal wear in the valve body causes a drop in pressure, which can cause the rear wheels to lock up suddenly while you're driving. Multiple occurrences. It has been taken to the shop for this issue.

The transmission malfunctioned 4 times in the first 3 weeks of ownership. Once on the way home from the dealer, but I could not return as they were closing when I picked up my new 2026 Silverado 2500hd pick up. It has 2 issues so far since that ride home, 2 times, on separate occasions, I was approaching a red light and slowing down when the light changed while I was in a slow speed, so I accelerated to get to the speed limit, while doing so, the truck hesitated for a couple of seconds then banged into gear. The second time for that same scenario was several days after resulting in the same hesitation and then bang into gear. No warning lights were reveled. I called the local chevy dealership, as instructed by the dealership I purchased it from was 107 miles away, they gave me an appointment to investigate the problem. Upon arriving, I needed to back up to align my vehicle with the entrance to the service area and my truck would not go into reverse. I tried 2 times shifting from park to reverse and nothing, I put it back into park while still running and went into the service area explaining my new issue, the service writer got a mechanic and he tried shifting into park with no luck. He then shut off the engine, waited about 30 seconds, restarted the engine and shifted into reverse and it worked. They checked for codes and none were present, so they test drove it for about 20 minutes, did not experience either symptom and email gm service assistance and were told to have me come back and they would check the parameters and make sure the software was updated as well as the transmission fluid level and condition. I returned for them to accomplish those tasks and drove home, 2 miles, and had no issues till the trip I was going on today, I warmed up the vehicle as it was only 37 degrees today and when I put it in reverse, it did not engage, so I shifted into drive, it engaged then I put it in reverse and it did finally engage. Now I'm going to renotify the dealership.

Concerned about the 10 speed transmission and the rear wheel lock-up , and how to obtain a extended warranty to cover this if trouble arises from issues with 10 speed transmission issues.

While accelerating to merge onto the highway, the transmission attempted a shift twice and could not complete the shift. That process causes an aggressive deceleration with each shift attempt. It then slowed, turned on the check engine light and displayed "reduced power mode" - I. E. Went into limp mode. The dealer pulled code p0747. The repair is a full transmission rebuild. I did not experience wheel lock up like other people have, but this is the same problem that has been heavily documented.

While traveling at highway speed on the interstate in my 2021 Chevrolet Silverado 2500 hd (approx. 120,000 miles), the vehicle experienced a sudden hard jolt followed by a momentary rear wheel lockup. This occurred without warning. Immediately after, the transmission defaulted into a fail-safe condition and became locked in 4th gear. The vehicle would move but could not shift properly, resulting in abnormally high rpm and engine load at highway speeds. I was forced to continue driving several miles in this condition to reach a safe exit. The unexpected drivetrain behavior and temporary wheel lockup created a serious safety risk, including potential loss of control and risk of collision. The dealership identified transmission diagnostic trouble codes p2715 and p2733 (pressure control solenoid performance). Transmission fluid was found to be burnt and contaminated with metal debris. The vehicle is subject to gm special coverage n242454441 for a known control valve body defect that can cause harsh shifting and reduced engine power. Although code p0747 (referenced in the bulletin) was not present, the failure involved transmission hydraulic pressure control. The dealership is replacing the valve body under the special coverage but is not addressing the internal transmission damage, stating they cannot determine whether the damage resulted from the covered defect. The sudden rear wheel lockup and transmission fail-safe condition at highway speed present a significant safety concern involving unintended drivetrain behavior.

The contact owns a 2026 Chevrolet Silverado 2500. The contact stated that while driving at various speeds, there was a rumbling sound coming from the vehicle. There were no warning lights illuminated. The contact associated the issue with technical service bulletin: 20-na-142. The vehicle was taken to a local dealer and test-driven, and the technician was able to experience the rumbling sound coming from the vehicle. However, the vehicle was not diagnosed because the dealer was unable to duplicate the failure while performing an additional test drive. The vehicle was not repaired. The manufacturer was contacted provided no assistance. The failure mileage was approximately 1,100.

Pulling out onto road, heard a bang, no forward or backward, unable to move vehicle, brought to repair shop, says output shaft is sheared off, 68000 miles on it, looked on line, apparently common defect, my son in laws friend just had his happen getting off ramp exit, 80000 miles, I’ve read where low as 20000 miles, as well as 59000, 33000 ridiculous crap made in USA…. Please help! no repair as of yet.

Will pulling camper, truck lurched with hard shift at around 35mph and caused a sudden slow down in traffic. Truck then went into limp mode with engine light illuminated. Pulled over to turn vehicle off and restart. Attempted to gain speed again and similar lurch with hard shift at around 35-40mph. Vehicle again in reduced power mode. Was able to ease truck to dealer where code reader showed p0700 and p0747. This was similar to issue found in recall for model years 2020-2022 with gm 10l1000 transmissions. There has been a technical service bulletin issue by gm regarding models years 21-25 but no recall. Dealer has ordered parts for TSB but repair not performed yet.

When putting vehicle in park, I get a message on dash that says "shift to park" when the vehicle is already in park. The vehicle electrical components does not turn off. Sometimes if I wiggle/hit or stick my hand under the steering wheel adjustment lever I can get it to turn off. Becoming more troublesome. Through research I see it is a common issue among gm/chevy vehicles.

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 or issues were found at that time indicating an issue.

My pickup truck has a duramax diesel engine with a cp4 diesel injection pump. That pump has not failed yet in my truck. However it has been known to fail in numerous other gm vehicles with duramax engines and when it does fail the engine comes to a complete stop and cannot be restarted. This is a potentially hazardous even fatal situation. Repair if the pump fails is very expensive - $12,000 to $14,000 in some cases. I would like gm to replace the injection pump at my dealership to ensure this known failure does not occur. My pickup truck is otherwise in excellent condition.

See all problems of the 2015 Chevrolet Silverado 2500 🔎.

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.

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.

Supposedly the oil cooler ended up failing causing oil to be pumped into the cooling system at 26000 miles 8 months after purchase. A low oil message popped up upon start up looked under the hood a noticed no oil on the dip stick and a coolant reservoir full of jet black oil (supposed to be a bright red) and a fluid level higher than the normally observed coolant level. Thankfully happened in my drive way. It could have left me stranded had the engine completely run out of oil/overheated etc. Had the coolant reservoir broke/cracked due to the extra pressure and added volume in the coolant system it would have leaked a coolant/oil mixture in the engine bay around hot components of the motor. (potential fire hazard in my opinion) thankfully was able to get it towed to the dealer before any major leaks of the coolant system or catastrophic damage (that I know of) occurred.

La transmicion viajaba aproximadamente a 70 millas cuando empeso a regresar los cambios rapidamente adta quedar parado en la carretera sin movimiento apague y volvi a encensenderla y trabajo una ves mas pero asiendo cambios bruscos aora el dealer no quiso atender el recall disen que se tiene que remplazar la transmicion completa.

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