Power Train Problems of Chevrolet Silverado 1500 - part 2

Transmission started shuttering on way to work went out before making it home. No problem before this trip.

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The contact owns a 2024 Chevrolet Silverado 1500. The contact stated while the vehicle was parked, the contact attempted to shift the into reverse and the gear shifter failed to respond as needed. An independent mechanic was contacted. The vehicle was taken to the independent mechanic and was diagnosed and determined that the vacuum modulator needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 17,000.

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Automatic transmission failed due to code p0722 (output speed sensor signal lost). The vehicle experienced sudden loss of propulsion, violent/harsh shifting, and severe drivability issues while operating on the highway. Loss of forward motive power at high speeds creates an immediate collision hazard. The vehicle was previously serviced for transmission issues but the defect recurred. The vehicle remains parked and inoperable due to safety concerns.

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I have a 2021 Chevrolet Silverado 1500 with a 3. 0 duramax diesel engine, have had a check engine light intermittent a couple times. Vehicle went into limp mode. Had the diagnostic code read; p1010. Code p1010 shows an engine coolant flow control valve position sensor exceeded minimum learning limit. General motors has issued a special warranty n252508341covering 2021-2023 Silverado 1500 for this part ( lm2 coolant control valve replacement ) with a 15 year and 150,000 mile limit. I took my vehicle to the Chevrolet dealer and they said my VIN number was not covered. It would be a $1900 repair. I have read of numerous other of same vehicles listed under the special warranty, yet gm has excluded these VIN numbers as well. This is a known defect, gm has covered some but not all. Yet many are not covered yet having the same problem. I am not able to reach anyone at gm to talk about this issue. It needs to be addressed.

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There was premature torque converter failure that’s has taken out the transmission unexpectedly. I was coming from a side street to get onto a main highway and as I left the stop sign the truck stalled upon take off and I was stuck half way on the highway and halfway on the side road. Until it jerked hard back into gear and pulled off. If the torque converter wouldn’t have caught in time then it could have cause a serious accident. The truck only has 95,000 miles and is a 2018 Silverado 1500 lt 4x4 with the 6l80e transmission. I had to park the truck until the following week when I could take it to dealership and they diagnosed it and quoted me for a new transmission and torque converter. Something needs to be done about these transmission as they are a serious safety concern. No police report was made since there was no accident but there definitely could have been.

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The vehicle experiences a sudden, violent drop into "limp mode" during active traffic acceleration. The internal output shaft speed sensor completely drops its signal, causing the vehicle to rapidly lose speed in active traffic lanes, creating an immediate and severe rear-end collision hazard. Diagnostic evidence:dealership (crews Chevrolet) officially scanned the vehicle and documented history codes dtc p0722 (output shaft speed sensor circuit no signal) and dtc p0700. The dealership technician verified that the external wiring harness is fully intact, isolating the failure strictly to the internal transmission sensor. Manufacturer actions:general motors corporate (case thread::oxemallrkkms4ndj0d9wj0w::) is actively refusing to authorize the dealership to drop the transmission pan to replace this failing component under the active bumper-to-bumper warranty. They are citing the "intermittent" nature of the safety hazard as a reason to deny diagnostics, forcing me to either operate an unsafe vehicle or leave it parked.

The internal transmission output shaft speed sensor (oss) and its associated internal circuit/lead frame assembly failed. The vehicle is fully intact, operational, and available for inspection upon request. When the output shaft speed sensor intermittently loses its signal (dropping to 0 rpm while the vehicle is stopped at red lights or in traffic), it forces the vehicle into an immediate electronic "limp mode. " upon pressing the gas pedal to accelerate, the transmission violently slams into gear with massive mechanical force. This sudden, unpredictable jerking and hesitation while accelerating into active traffic creates an immediate risk of being rear-ended, losing traction, or losing control of the heavy vehicle in an intersection. The problem was officially confirmed via a diagnostic computer scan by an authorized gm dealership (crews Chevrolet), which pulled and documented history codes p0722 (output shaft speed sensor circuit no signal) and p0700 (transmission control system malfunction warning). However, the dealership declined physical teardown or sensor replacement because the electronic failure is intermittent and could not be replicated during a brief technician test drive. Yes. The vehicle's external wiring harness was physically inspected by an authorized general motors dealership technician, who confirmed the external wiring passed inspection. This officially isolates the intermittent electrical drop to an internal transmission component failure. It has not been inspected by police or insurance. Yes. The symptoms appeared suddenly without prior warning. The transmission began shifting erratically and violently, immediately followed by the illumination of the dashboard check engine light (malfunction indicator lamp). The onboard computer triggered diagnostic trouble codes p0722 and p0700.

An internal transmission output shaft speed sensor (oss) failure causes the vehicle to enter "limp mode" and shift violently, creating a risk of rear-end collisions or loss of control, according to the report. A gm dealer confirmed diagnostic codes p0722 and p0700, isolating the issue to an internal component after an inspection of the external wiring harness.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at approximately 40 mph, the vehicle shuddered and downshifted independently. No warning lights illuminated. Additionally, an obd2 diagnostic scan retrieved diagnostic trouble codes: u0146, u0101, and u0100. A local dealer was contacted; however, the vehicle was not diagnosed or repaired because the VIN was not included in any recall. Additionally, the contact related the failure to NHTSA campaign number: 24v797000 (power train). The manufacturer was not made aware of the failure. The failure mileage was approximately 84,000.

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Transmission shudder/rumble strip vibration when accelerating.

Truck stutters and idles terrible. Vehicle warning light keeps saying, reduce acceleration and drive safely. Two years ago an injector went bad, and it was fixed. 6 months ago, we had it in the shop, of course still under the 60k mile warranty. Said it was fixed, it wasn’t. Just had it back there, and they replaced the the torque converter. Shaking stopped for a month. Now it is even worse. Believe it is faulty injectors. Sadly, we’re not passed the 60k warranty period and feel unsafe driving our truck which we need every single day. Truck is nearly paid off and feel like we got jipped as this truck continues to have problems after problems.

Truck continues to shutter after having the torque converter replaced and the 2nd injector replaced. Been in the shop several times over the last few years, and still giving warnings on the dash saying, reduce acceleration drive safely. Feel like we just got a terrible vehicle. Almost paid off, and it’s just unreliable. Sadly we need this truck every single day, and the local dealerships have now pushed the problem out so far that we’re passed out 60k warranty period.

Vehicle transmission repaired at 77,000 along with a new torque converter. Torque converter and transmission both failed again at 115,000 miles. GMC currently replacing the 3rd torque converter with 130,000 miles. I have spent over $14,000 on 2 transmissions and 3 torque converters on a vehicle I've owned for 6 years.

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While driving my truck returning from a camping trip I received the following warnings in the dash: service esc, service traction control, forward collision system unavailable. Check engine light was flashing. I made the assumption that the check engine light was due to the warnings listed above. I continued to drive the vehicle until I began to feel a very noticeable shudder at idle, at low speeds, and also loss of power at higher speeds. The truck has the 5. 3 ecotec engine with dfm. After researching the symptoms, I found that these symptoms are identical to the know lifter problem with that engine. The truck is a 2026 Chevrolet silverado trail boss with approx. 3454 miles on it. It's currently at the dealership waiting for them to "diagnose" the problem. I was told that it may just be a "faulty sensor", but after reading other people's experience with this engine I believe that the real problem is a damaged lifter/lifter pin due to the poor design and engineering of the dfm system.

Momentary wheel lock up. Engine warning light came on. Safety warning not to drive as could cause catastrophic damage to transmission. Same symptoms as noted on update gm bulletin n242454441. 12/24. Only extends warranty 2020- 2022 models up to 150,000 miles. Gen 3 transmission control valve appears to be the fix. . . My VIN not included in the extended mileage. I just turned 62,000. Just out of standard warranty.

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I purchased the 2026 Chevrolet silverado with a 6. 2l motor "new" from the dealer with 5700 miles on xxx. Roughly a month and 2500 miles later, my family and I were in the vehicle, 750 miles from home, returning from a vacation to [xxx] from the [xxx]/[xxx] area. It was around 8:30 in the morning and we had been on the road since the 6 o'clock hour. We were towing our our 20' fishing boat at the time. We were in the left most lane, passing a semi tractor trailer. I signaled and moved back in the 3rd lane after the pass. We were now the vehicle in front of the semi. At this moment, the engine locked up. The torque converter which had been locked at highway speed came unlocked. The transmission started aggressively downshifting looking for torque, rpms racing upwards of 6k. We were now on an uphill, towing, with a seized engine in front of a semi. In the next lane right was a family in a newer Lincoln navigator going freeway speeds. Aside from the transmission, the engine was silent, the accelerator did nothing. A message pops on the screen. "shift into neutral" is says. . . A fraction of a second later "restart engine" or alike. The start button was unresponsive. We're losing speed, the sem I is right on the back of the boat now, the [xxx] navigator was even in the lane with the semi. This is where split second decision making mattered. I glanced to the right most lane, empty. All I could do to get off the interstate was to yank the wheel to the right and at what felt like a 45 degree angle, rip across the three lanes to the only shoulder available. The navigator was obviously caught off guard, as they had been slowly gaining on/passing the semi at the time. The navigator locked up it's brakes, skidding out of control before regaining it. Now it's still. Engine off. Only the noise of the freeway and the navigator driver, still honking profusely and deservedly. My heart was just pounding. Breathe. You're all alive. Thank god. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b).

Transmission failure with no electronic warning or codes. Hard shifting was identified while under warranty but because no codes were present no action was taken to correct the issue.

The contact owns a 2024 Chevrolet Silverado 1500. The contact stated that while reversing, the message "service transmission" was displayed. The vehicle was taken to the dealer, where an unknown transmission part was replaced; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was informed that the transmission gear shifter had failed and needed to be replaced. The manufacturer was notified of the failure but denied covering the cost of the repair. The vehicle was not repaired. The failure mileage was approximately 39,000.

Date: June 22, 2026 time of incident: approximately 11:48 a. M. Vehicle: 2025 Chevrolet silverado high country 6. 2l v8 current mileage: approximately 29,500 miles I am documenting the events surrounding the unexpected engine failure of my 2025 Chevrolet silverado high country. On June 22, 2026, at approximately 11:48 a. M. , while driving at highway speed, the vehicle was operating normally with no warning lights, messages, or other indications of a problem. I began hearing a metallic clanking or knocking noise from the engine area. The noise progressively increased in volume and severity over approximately ten minutes as I reduced speed and looked for a safe location to pull over. My intention was to reach the dealership if possible; however, as I slowed to approximately 15 mph to make a turn, the noise stopped abruptly, the engine shut off, and the vehicle displayed a message instructing me to press the start button again. The vehicle came to a complete stop at approximately 11:58 a. M. I attempted to restart the vehicle once, but it did not restart. No additional restart attempts have been made. There were no warning lights displayed prior to the engine shutting down, and there were no visible fluid leaks underneath the vehicle after it came to a stop. The vehicle received a routine oil change on June 16, 2026, approximately three days before this incident. I have retained the service receipt and all related documentation. The vehicle will be transported by flatbed tow truck to an authorized Chevrolet dealership for diagnosis and repair under warranty. This email is intended to document the incident timeline and details while they are fresh in my memory. I have not heard back from the dealer yet.

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While driving at highway speed, my vehicle developed a serious transmission problem. At approximately 75 mph, it suddenly lost the ability to maintain speed and dropped to about 55 mph despite throttle input. Engine rpm increased significantly and the vehicle had greatly reduced propulsion. Normal operation temporarily returned after the vehicle was shut off and restarted. The vehicle has also experienced harsh shifting, vibration, limp-mode behavior, a check-engine light, and I reported a momentary wheel-lock event. These symptoms create a safety concern because an unexpected loss of propulsion or abnormal transmission behavior at freeway speeds can increase the risk of a collision. The vehicle was inspected by an authorized Chevrolet dealer. The dealer documented transmission-related diagnostic codes including p0700, p0970, p0968, and p0711. The dealer's repair order specifically referenced gm program n242454441-03, described transmission control-valve wear and pressure loss, and recommended replacement of the valve body. A separate repair estimate included the valve-body assembly and related transmission service parts. Despite the dealer recommending valve-body replacement, gm/dealer coverage was denied primarily because p0747 was not present at the time of diagnosis. I am reporting this because I am concerned that transmission control-valve/valve-body deterioration may cause harsh shifting, reduced propulsion, limp mode, or other safety-related symptoms before or without p0747 being stored. I am asking NHTSA to review whether vehicles with the same underlying valve-body failure may remain on the road because the specific qualifying diagnostic code is not present during a dealer scan. The vehicle and transmission are available for further inspection if requested.

My 2026 Chevrolet Silverado 1500, lt trail boss, did not include a printed version of the owner's manuals and guides. I have experienced issues with using automatic car washes with the truck lurching while inside the car wash, the online version of the manual is difficult to use at times when internet access is unavailable. My VIN is not listed in the recall n252532020. Another issue is with the driver's seat, the retainer for the leather upholstery keeps popping off under the seat that can cause it to become caught in the seat's mechanics.

Oil cooler failed and truck was at dealer for a month over winter. Now June 20th transmission failed and there is no timeframe on the valve body. I am still making payments on this truck and no dealers have a timeframe.

While driving at highway cruising speeds, the vehicle began showing abnormal rpm fluctuation/surging at steady speed. The rpm would repeatedly move up and down even while maintaining a constant speed, including when cruise control was used. There were no warning lights or dashboard messages at the time the symptoms first appeared. The suspected failure is the torque converter/torque converter clutch in the automatic transmission. After diagnosis, I was advised that the torque converter failure contaminated the transmission fluid/internal transmission components, and that the transmission now requires replacement. The failed transmission/related components may be available for inspection upon request, depending on repair timing. This condition created a safety concern because the drivetrain was not operating normally at highway speeds, causing inconsistent power delivery and concern that the transmission could slip, overheat, fail further, or leave the vehicle unable to maintain speed in traffic. A sudden loss of propulsion or worsening transmission failure could increase the risk of a crash. The problem has been diagnosed by a transmission repair facility. The vehicle has not been inspected by the manufacturer, police, or insurance representatives. No crash occurred. No injuries occurred. No warning lamps appeared before the failure. The first noticeable symptom was the rpm flutter/surging at steady highway cruising speed. The exact internal cause is unknown, but the best assessment is torque converter/torque converter clutch failure resulting in contamination and failure of the transmission.

I am filing a formal complaint regarding general motors' handling of a critical vehicle component that has left my vehicle and many others in an unsafe condition. For more than over a one month, I have been waiting for a replacement gear shift module that is currently on backorder. During this time, I have learned that numerous general motors customers are experiencing the same issue and are also waiting for this part to become available. My primary concern is that this appears to be more than an isolated parts shortage. If so many vehicles require replacement of the same safety-related component, general motors should be evaluating whether this issue warrants a safety recall or, at a minimum, notifying affected customers of the potential risks. The gear shift module is a critical component that affects the safe operation of a vehicle. Allowing customers to continue driving vehicles that may have a defective gear shift module without providing a safety notification or timely repair raises serious concerns regarding public safety. I respectfully request that the NHTSA investigate this matter and encourage general motors explain the reason for the extended backorder of this critical component. Provide customers with a reasonable timeline for obtaining replacement parts. Determine whether this issue should be addressed through a formal safety recall or customer safety notification. Offer appropriate assistance to customers whose vehicles have been affected by this prolonged delay. Customers should not be expected to operate vehicles that may present a potential safety risk while waiting indefinitely for a critical replacement part.

The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that while driving 10 mph, the vehicle hesitated and lurched forward while depressing the accelerator pedal. The contact stated that the failure reoccurred while driving from a complete stop. The vehicle was taken to the dealer, where it was diagnosed with transmission valve failure. The vehicle was being repaired. The contact related the failure to NHTSA campaign number: 26v083000 (power train); however, the VIN was not included. The manufacturer was not contacted. The failure mileage was approximately 70,000.

On Monday, 6/15/26, with approx 45,400 miles, I was driving down the road and truck said service transmission. The gears would shift, but it lagged a little bit. I scheduled an appt for two days later, and only drove it when I absolutely had to, which was only twice before my scheduled appt. I get in it to drive and it says service transmission- unable to shift soon, then on my way to the dealership, it says all of that, plus service driver assist system. Chavy's quality assurance team needs to get it together! this is absolutely ridiculous.

Leased a 2025 chevy silverado in late 2025. On June 13th 2026 driving home my vehicle all of a sudden had very little power, check engine light went on and thankfully I was at my driveway. Pulled into my residence, shut truck off and called the dealer I leased the truck from at 1:00 pm satuarday, June 13th. They set me up with a loaner vehicle. I called for a tow truck Monday the June 15th and had truck delivered to dealership. Ive been told, they are looking into? beyond that, nothing more.

6/12/26 ( 2023 chevy silverado - 6. 2 liter engine) while driving at approximately 40 mph on a two lane road, the truck shut off. After multiple attempts, the engine failed to restart. The transmission locked up in park and would not release. This required the truck to be dragged up on the flat bed wrecker instead of rolling freely. Prior to this instance there have been several issues with the electrical system. 1. Radio sound shuts off. Does not come back on. 2. Head lights stay on for 10 minutes after vehicle is turn off. 3. Tail gate opens on it own. Tail gate doesn't open with fob. 4. Door locks fail to operate correctly. 5. When drivers door is opened a beeping sound starts and doesn't stop until door is closed. I have reported these problems to gm & have two case numbers. The dealership reports that the 6. 2 replacement engines have had multiple failures.

While driving home @ approximately 45 mph, the transmission seemed go out of gear followed by a loud bang and rapidly slowed to 20mph. The truck would no longer shift gears and now has no reverse gear.

Took my 22 silverado with the l87 engine in for the recall. The dealer stated that my vehicle had a tick in the motor but it passed the pico test. They switched it to the 0w40 oil and stated that my engine will probably blow here soon, but until that happens there hands are tied. Today I took my truck in for another inspection because my motor had a very loud tick noise almost sounding like metal on metal, they stated they did not hear anything and without more proof nothing can be done. My safety is very much put at risk when I report something to them thats happening with the vehicle, and if my motor blows while im driving 80 mph I could crash into others or even die myself. My transmission is also having problems of what I would call bucking when you put it into drive, I also filled up with gas last week shut my truck off pumped gas, got back into my truck and started it, went to put it into drive had no power shut it off and did it again, I had power but my rear wheels were locked up and wouldnt budge. Shut it off turned my truck on and engaged the 4 wheel drive, and then disengaged it, still not able to drive. Shut it off and put it back into drive and the rear wheels were able to drive normally. Dealership says theres a recall on the transmission to add a spacer plate so it was ordered. This issue needs to be taken very seriously this is why they say theres only 3% motors affected is because they decline the motors that have actual problems but its still running so to them its fine.

My 2023 Chevrolet Silverado 1500 experiences an intermittant, uncommanded mechanical drivetrain lockup and severe binding when accelerating from a complete stop. The vehicle rolls fine in a straight line for several feet, but the exact moment the steering wheel is turned slightly (a couple degrees), the drivetrain violently binds up. This creates resistance in the steering and acceleration, as well as a severe physical and audible metallic clunking slam and massive shockwave vibrations felt directly through the steering wheel, floorboards, brake/gas pedals, and driver’s seat. During the last event, the vehicle threw a "service 4 wheel drive" dash message and refused to shift out of "auto" mode back into 2wd. Because this is a pure mechanical interference/binding issue, it does not consistently throw active electronic trouble codes. A standard obd2 code scan will show nothing. After turning the vehicle off for several hours and testing again, the problem persisted. After towing the vehicle to a dealership (6/10/2026) it sat for at least 5 days before dealership service looked at it. By this time, the active warning lights cleared. My initial servicing dealership refused to perform physical hardware or fluid diagnostics under my factory warranty, stating they would not look at the vehicle unless I paid $860 out-of-pocket or until the drivetrain "completely grenaded" on the road. Because this uncommanded lockup restricts my ability to steer the vehicle safely from a stop, it presents an immediate crash hazard. At the direction of general motors corporate, I am escalating this issue and moving the vehicle to a secondary certified facility (feldman Chevrolet of novi) on June 23, 2026, for a formal physical hardware and fluid tear-down inspection.

Code p0747 the car jerked forward twice and did not accelerate. The engine light came on. Gm said my truck was not covered under the special coverage because of my VIN although it’s got the same problem for the same truck listed.

On or around xxx a my 2021 silverado started making a rattling sound from the engine. The truck began to stall and the engine shut off three times while driving. I attached scanner the next day and the track showed p00011 and p00016 codes. Those codes are for the camshaft sensor and the crankshaft sensor. I went online and did research about the two codes and discovered there had been a couple recalls for these codes concerning my year model truck: (recall number 25v-274; campain n252494000). Nhtsa engineering analysis ea25007 or rq26001 I spoke with the dealer I purchased vehicle from (lynn layton Chevrolet - decatur, al)and they said they will not begin repairs until they receive payment from gm or myself. I then spoke with tyler at gm corporate customer service. He said my VIN was not included in the gm campaign|recall. I asked why not because it is a 2021 silverado and I’m having the exact same problems as vehicles included in the recall. He said because they checked their system and the parts used on my truck were from a different manufacturer than those included on the recall. I said that shouldn’t matter because my truck is having the same exact problems. I asked him to check and see if gm would be able to provide financial assistance to have motor repaired or replaced. Tyler told me that gm will not do repairs - they will only replace the engine. He said gm would not provide any financial assistance because my truck has 170k plus miles on it. I informed him that I had previously taken my truck to lynn layton Chevrolet about these symptoms and it was diagnosed as transmission/torque converter problem. They changed transmission fluid and charged me ~$700. I then asked if gm would authorize a “goodwill replacement”. He said they would not. I called lynn layton decatur back and asked how much would engine and reps if I have to pay for it. They said 10k -12k a local mechanic said he will fix for $6,000. Please help me get this resolved. Information redacted pursuant to the freedom of information.

Complete engine failure on the highway, compete engine and power lockup, towed back to dealership where complete engine lockup was confirmed. No prior issues, no other damage contributing to failure. Claims not to be covered under current recall, advising the recall be extended to all 6. 2 19-04 chevy models as I experienced the same engine failure as recall states.

While shifting my vehicle from park, a "service transmission" warning message appeared on the dashboard. The warning would illuminate and then disappear, but the vehicle continued to shift into the other gears. At the time the issue occurred, my truck had only 47,000 miles. I brought it to blasius Chevrolet in [xxx] on xxx, for diagnosis. The dealership determined that the transmission control assembly (part # xxx) had failed and needed to be replaced. I was informed that this repair was not covered under the powertrain warranty because Chevrolet considers the transmission control assembly to be excluded from powertrain coverage, and my basic warranty had already expired. I was quoted more than $900 for parts and labor. Initially, I was told the replacement part would arrive within a few days. Later, the technician stated that other Chevrolet dealerships had the part in stock. However, after contacting those dealerships, he was told they would not release their inventory. Chevrolet then advised that the part was on national backorder, with the earliest estimated availability of xxx. As a result, I have been without my truck for approximately one month, creating a significant hardship. After researching this issue, I found numerous reports from other Chevrolet owners experiencing the same failure involving the transmission control assembly. The apparent frequency of these failures, combined with the nationwide backorder of the part, suggests this may be a widespread defect rather than normal wear and tear. I believe Chevrolet should either: cover this repair under the powertrain warranty, as it directly affects the operation of the transmission, or issue a recall or warranty extension if this is determined to be a common defect affecting vehicle safety and reliability. I am submitting this complaint because I am concerned that a failure of the transmission control assembly could impact the safe operation of the vehicle. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).