2021 Chevrolet Silverado 1500 complaints

I am requesting immediate review and resolution regarding a major engine failure in my 2021 Chevrolet Silverado 1500 with the 6.2L V8 engine. My vehicle has suffered a complete engine failure and is displaying code P0016 (crankshaft/camshaft correlation). This is a known and widely documented defect affecting GM 6.2L engines and is the basis of an existing recall and engine replacement program for similarly equipped vehicles. Despite my vehicle exhibiting the exact same failure, I have been informed that my VIN is excluded from the recall. This is unacceptable, as it reflects inconsistent application of a known defect remedy. Under consumer protection principles, including the Magnuson-Moss Warranty Act, manufacturers are obligated to address known defects and ensure consistent warranty and post-warranty remedies where systemic issues exist. Denying coverage for an identical failure based solely on VIN exclusion raises serious concerns. I am formally requesting a full goodwill engine replacement. This failure is clearly tied to a known defect pattern, and I expect GM to provide the same remedy afforded to other affected customers. Please escalate this case for immediate review and confirm next steps. I am prepared to provide all supporting documentation.

I was on the highway doing 70 MPH with my family driving down I-40 through western NC (mountainous terrain) when my brakes went out and the vehicle went into limp mode. I was able to safely pull over thank God and then had my vehicle towed to the dealer. The dealer just informed me that a software update is needed, and not covered under warranty. There are multiple safety bulletins coming out for related years and issues related to the braking system of this make/model and I would like this documented as well as Chevy to cover the cost of repairing this defect.

Rear power sliding window. Leaking when it rains or going through the car wash. On 6/4/25 I had a leak from my rear window checked out by the dealership were I bought the truck. Morrie's Onalaska Chevrolet. They found a water leak from cracks in the rear glass molding. I have water lines on the roof lining from the leak.

Transmission shutter at low speed acceleration

Verified customers cpncern of cylinder 3 misfire and low compression. Inspected cylinder 3 sing a borescope and found excessive oil on top of the piston and on the cylinder walls. There are marks from loose carbon debris damaged the cylinder wall. Upon further inspection the oil looks to be coming from the valve seals. Recommend replacement of the long block assembly to correct these conditions. --Cody Glasscock, Ford Lincoln of Morgantown

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle made an abnormal sound while driving. Upon taking the vehicle to an independent mechanic for an oil change, it was discovered that there were metal shavings inside the engine oil. The vehicle was taken to the dealer, where it was diagnosed and determined that the engine needed to be replaced, and the contact was provided an estimate for the repair. The vehicle was not repaired due to the cost. The contact related the failure to NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the VIN was not included. The manufacturer was contacted and referred the contact to the dealer for diagnosis, and to the NHTSA Hotline for assistance in adding the VIN to the recall. The failure mileage was approximately 104,000.

It started backfiring and knocking

My 2021 Chevrolet Silverado RST 4x4 5.3L V8 was a Certified Pre-Owned vehicle purchased through a GMC dealership, strictly maintained by certified GMC service departments, and had its torque converter replaced one year prior in accordance with a manufacturer Technical Service Bulletin (TSB). One week before a scheduled round-trip journey from Alabama to North Carolina, the truck underwent a comprehensive multi-point inspection, oil change, and tire rotation at an authorized Chevrolet dealership. While driving on the highway, I came to a complete stop due to an accident ahead, but when traffic resumed a forward-moving pace, the drivetrain completely lost the ability to propel the vehicle without any prior warning signs or symptoms of mechanical failure. While immobilized and contacting 911 and towing services, I attempted to cycle through all drive modes—including Auto, 4-High, 4-Low, and 2WD—but none succeeded in transferring power to the wheels; though the engine would still rev, no power reached the tires. No dashboard warning lights illuminated prior to the drivetrain failure, though a check engine light did appear after the vehicle became immobile when I was switching through drive modes. Because there was no available highway shoulder or exit to seek safety, and due to the sudden nature of the mechanical failure, emergency vehicles and tow trucks could not safely divert traffic or move the vehicle in time, resulting in a severe rear-end collision that caused a total loss

Check engine light flashes when pulling a load and accelerating above 50mph. Check engine light code is PO300 Random multiple misfires. Took it to the shop and there we’re currently no active misfires.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, the vehicle unexpectedly decelerated to 30 MPH and the vehicle loss motive power. A dealer was contacted. An undisclosed warning light was illuminated. The vehicle was taken to a dealer to be diagnosed, and it was determined that the engine needed to be replaced, and that the engine was consuming an excessive amount of engine oil. The contact was informed that the warranty would not cover the repair. The vehicle was not repaired. The failure had occurred on several occasions. The contact associated the failure with NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the VIN was not included in the recall. The manufacturer was notified of the failure and informed the contact that the VIN was not under recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The approximate failure mileage was 109,082.

I have 112,000 miles on my truck and my 6.2l motor is going out or knocking. I am very unhappy that my truck is not covered under the recall and I would like to understand why it is not since this is the issue of the recall. I would like to clarification on this and what options I have since it is going to cost me 14k to replace the motor. Case #101943027

10 speed transmission failed at 70K miles. Metal found in the torque converter. Manufacturer recommended routine maintenance was performed on transmission. There needs to be a recall on 2020 to 2021 vehicles with the 10 speed transmission due to the reporting of safety issues of the vehicles locking up while driving. I was lucky to feel the issue happening and getting off the road before it was able to lock up on me causing serious injuries. This needs to be addressed and taken seriously before someone loses their life. Best regards, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Lights on the panel reads service parking break, engine, transmission, abs, traffic control and esc service. All these lights are on. Idling rough, white smoke with rich smell. Had a diagnostic read cam/crank and lifters bad… estimated cost 15,000. Total new engine install.

I bought a 2021 Chevy Silverado 1500 Badlander edition in February of 2025. I love the truck and drive it everywhere. I have brought it in for every oil change when needed. I got my first oil change April of 2025 and had no issues. Then I got my second oil change June of 2025 and both of these were done at the dealership that I purchased the truck from. At the June oil change I asked Jeff Belzers to do an oil consumption test and they said they would not because my vin did not show up in the recall. On July 31 of 2025 I got an engine oil low light on my dash, which I took a picture of. At that time I had to add two quarts of oil. Then in August of 2025 I went in for my oil change at Jeff Belzers again and I told them about adding the two quarts of oil and asked again at that time if they could do an oil consumption test and they told me no again because my vin was not on the recall list. I then got another low engine oil light on September 29, 2025 and at that time I added 2 quarts of oil. In October of 2025 I brought my truck to Maur Chevrolet for an oil change and asked them to check my vin for a recall and they said there were no recalls. Then I brought my truck to Maur Chevrolet in November of 2025 for an oil change and I asked if the vin recall had changed and they said no. At this time I was just checking my oil and adding as needed. I took my truck in for an oil change in January of 2026 and asked about the recall again and no changes. Then after that oil change, I was

The truck started backfiring and shuddering. Took it to the mechanic and with only 112000 miles I am being told it needs a new engine. It is the 6.2l motor.

Loud ticking noise and power loss. Transmission shift slips from 2nd to 3rd . Called factory and dealership for check up. Said no problem… Told to Change oil. Did this, NO CHANGE.

When i first purchased the vehicle off the lot a few years back (its a 21, so probably in 22?) Brand new off the lot minimal miles. Within the first few months we started having issues with the power wanting to shift down. We took it in, the dealership found nothing wrong with it and cleared the codes. This happened a few more times. The last 2 times I took it in. They mentioned that there were recalls on it and could possibly be causing the issue. Took care of that (last august- have docs. to prove it as along with what they did and what we stated). Fast forward now 2 months ago (April of 25) and it starts acting up again and wants to downshift, shifting hard, stuttering and not wanting to drive, the same things we have been complaining about since beginning with lights on etc. However, this time we tried to shut it off and give some down time to get back home. After about 10 mins, we went to start the truck to get it home, and it would not start. We had it towed to the dealership. Once they got it, after 2 weeks of waiting we were finally presented with, the starter went out and the wiring box needed to be replaced (this has to be done before they can look into the original problem again) (because without those 2 things fixed, they wont be able to do) it is now June. I took the vehicle home, due to not having funds to fix right away. After doing some research and some digging, it would appear that the issues that we are having with the truck are issues that are already bein

On June 3, 2026, my 2021 Chevrolet Silverado 1500 LT Trail Boss, which has a 6.2L L87 V8 engine, stalled and shut off unexpectedly while I was stopped at a traffic light on a public highway. The engine died without warning, leaving me stranded in traffic and creating a serious safety risk for me and other drivers because of the chance of a collision. I had to call the police to come and sit behind me to keep myself safe from a collision while I waited for a tow truck. A dealer diagnosed the vehicle with DTC P0016, indicating a crankshaft/camshaft position correlation fault. This points to either an engine timing problem or an internal engine failure. The dealer confirmed the issue and gave me a repair estimate of about $11,000. Both the vehicle and repair records can be inspected if needed. Before the failure, the vehicle showed signs of an engine timing or internal issue and eventually triggered the check engine light with code P0016. After researching, I discovered many reports from other owners with the same 6.2L L87 engine who faced similar problems, including P0016 faults, engine stalling, internal engine damage, and complete engine replacement. While some vehicles with this engine have been part of recalls or special coverage programs, my vehicle is not included, even though it shows the same failure pattern. At the time of the failure, the vehicle has about 140,336 miles. I believe my vehicle has the same defect affecting other 6.2L L87 engines. I ask that NHTSA look i

Loud ticking noise and power loss. Transmission shift slips from 2ed to 3rd .Recall to factory for check up. Said no problem? Changed oil. They say it was good. It is not.

I have fighting this issue since January and have not gotten any help or relief from Chevrolet. This issue caused a significant safety risk and has cost me $12,000. I am writing to formally report a serious safety issue involving my 2021 Chevrolet Silverado that resulted in a sudden loss of power while merging onto an interstate highway. On XXX, I brought my vehicle in for service to replace the upper and lower ball joints, as well as the control arms. I retrieved the vehicle from the repair shop on XXX, and departed the same day for travel to [XXX]. Later that evening, while traveling southbound on [XXX] near [XXX], I stopped at Exit XXX. Upon re-entering the highway and accelerating to merge into traffic, the vehicle began shifting through gears abnormally. While in approximately 6th gear at around 2,900 RPM, a loud banging noise occurred, followed immediately by a significant loss of engine power. At the same time, the check engine light illuminated. Due to the sudden and unexpected loss of power while actively merging into highway traffic, I was nearly rear-ended by another vehicle. I was forced to take immediate evasive action and pull onto the shoulder to avoid a collision. This incident created a highly dangerous situation not only for myself but for surrounding motorists. This failure occurred without warning and directly impacted my ability to safely operate the vehicle in a high-speed traffic environment. I believe this presents a significant safety concern that war

Was on way to trade truck in onb6/6/26 and got a cylinder #7 misfire. Replaced spark plug and wire and moved coil packs around to trace and stayed on #7. Just had recall completed on 9/25/25 and stated that I've heard a rattling noise in engine area. They performed recall and changed to new oil suggested by GM. Dealership said noise was transmission. I told them that was replaced already within last 50k miles under warranty. Drive it for a few days and rattling noise still there. Took back to dealer on 9/30/25 at cost of $200 diagnositc and stated there is a grinding noise under light acceleration like it's metal on metal. Dealer stated that it was the rear seat rattling. There were NO noises in the cab, only coming from outside at driverside motor area. Called GM 10/1/25 to let them know the denial of motor replacement and we wanted 2nd opinion but we would have to pay out of pocket again. On 6/4/26 had to have truck towed to new dealer. New dealer won't make deal on new truck because of this and we have 2 trips already booked and paid for and 1 at end of June. New dealer is putting in service on 6/8/26 to verify cause. I have called GM after making repairs and they said it was between me and the dealer, there is nothing they can do. This is unacceptable! Im fine if they would offset cost and buy a new Chevy truck and we are going to fight to get it made right. This does make us want to change brands even though we've bought 5 Chevys in the last 10 years.

After putting our Silverado in park it will not turn to the off position or release the key from the ignition immediately. We have to wait 1-3 minutes without attempting to turn it in the off position and then the key will release from ignition. No warning lamps. No error codes on reader. Repeatable by auto technician who suggested a battery change- our current battery was fine and did not fix the issue. If you forget and try to remove the key in under a minute after parking you have to restart the truck, go back to park and then start the 1-3 minute countdown all over before it will release the key. The truck is in park, the parking brake is engaged (although we tried without using the brake and still won’t release key) This means the trucks battery has to run until it will release the key. Or chance leaving the key in the ignition (still draining battery) since it won’t turn to the off position.

Air bag light was on , took to dealership because this was absolutely a safety hazard! The left front crash sensor is defective.

1. An electrical failure from a component of the main wiring harness causes the ECM to respond with Service ESC, Reduced Engine Power, Service parking brake, service traction control. 2. Interstate driving requires maintaining rate of speed to avoid collision. The vehicle is much more difficult to drive as acceleration is very poor and also main safety functions like traction control are disabled. 3. Check engine light stays on until codes have been read. After codes have been cleared, normal driving and usually turning or bumps in the road tend to trigger the recurrence. 4. The vehicle has only been reviewed by the dealership for this issue. 5. No warnings before the failure occurs.

1. An electrical failure from a component of the main wiring harness causes the ECM to respond with Service ESC, Reduced Engine Power, Service parking brake, service traction control. 2. Interstate driving requires maintaining rate of speed to avoid collision. The vehicle is much more difficult to drive as acceleration is very poor and also main safety functions like traction control are disabled. 3. Check engine light stays on until codes have been read. After codes have been cleared, normal driving and usually turning or bumps in the road tend to trigger the recurrence. 4. The vehicle has only been reviewed by the dealership for this issue. 5. No warnings before the failure occurs

Truck started ticking/clicking a few months back and the ESC or ECS light came on took it to the dealer Carl Black Chevrolet in Orlando, where the was supposed to to fix the problem under the previous owner, my boss who gave me the truck and 30 days after receiving the title the motor is bad. Mileage now is 112,000, the truck has burned the right fuel and had proper oil changes. Now the motor is blown as per a certified mechanic northeast auto and truck service in Ocala. First owner called General Motors to see if they could help and was told it should have gone to a Chevy dealer so they won’t or cant help. Motor is blown on a truck with low miles and this is how Chevy appreciate its drivers who purchase their vechiles. Buy American, they say…wow! On [XXX] the same reading came on again. This time it said service emergency brakes, parked it, went in store to purchase food, came out, started truck, drove 4 miles, parked truck went in to work and three hour later came out and white smoke rolled out the back and inside cab. What the heck! Embarrassing … had to leave truck… Chevy replace this engine, please. Was concerned about it INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2021 Chevrolet Silverado 1500 Custom 2.7 L Turbo 4 cylinder with 34,000 miles When Truck cranks and put in gear begins moving at low speed between 1-2 gear (low speed 5-10 mph forward and also in put into reverse) hard jolted severely injuring passenger. Felt like being rear-ended by another car. Passenger was hurt & required Trauma 1 EMS & 2 surgeries (Spinal Fusion Surgery) hospitalization from 12/2/2025 to 12/13/2025. The truck jolt directly caused this accident and there were many recalls for this truck yet we had no direct knowledge of this information & was never notified of any of these issues. Truck was services at same dealership just weeks prior to accident. The truck check engine light came on only after the accident. It happened on a private gated property. Only select trucks have been said to do this very hard jolted injuring passenger and owners are not made aware using Silverado 1500 trucks. Please acknowledge receipt of this report and advise. Thank you.

25 to 30 MPH front end collision with no air bag deployment. During repair it showed airbags deployed although none were out.

I have a 2021 Silverado LT trailboss. Catastrophic engine failure. Camshaft bearing and lifter failure. First lifter replacement @ 16,000 miles. Second at 104,000 miles. Was told by GM the 6.2L L87 I have is not affected due to a Canadian VIN. The sticker on the truck says Assembled in Kentucky. Gm charged $18,000 for a refurbished motor. The “new” motor had lifter failure at 12,000 miles. Canada is now included in the recall but I was again told by GM that my engine is not affected due to being built in September 2020. I believe this engine bearing failure goes back further than they like to admit.

I was driving and all of a sudden engine and transmission failed many lights appeared on the dashboard brakes were not braking, the truck started to lose power and making weird noises.

Sudden loss of power steering, usually upon initial start. May return, may not return during drive. Began around 1 week ago. Sudden loss of power steering when turning either right or left has occurred causing a dangerous situation. Upon loss of power steering, 2 warnings appear. One for loss of power steering and the other for the trailer brake. Have never trailered anything with truck. Check engine light has come on at times, others it has not. Steering failure has occurred approximately 6 times. An internet search found some reference to my vehicle being informally added to the recall affecting other GM Vehicles. Vehicle has not been inspected yet.

The engine was burning oil, so did a consumption test. The dealer took apart the engine and found the rings for the pistons were leaking and scaring was resulting. This caused me to buy part of a new engine because it was 6days past warranty with only 44,000mi on it. Also, at 18,000mi, a lifter bent and needed that replaced. There are numerous reports for this engine. It should be recalled! I shouldn't have to pay out of pocket for the defaulted error proned engine.

While driving my 2021 Chevrolet Silverado 1500 Trail Boss, multiple warning lights and messages suddenly appeared related to the ABS and brake system. The brake pedal became extremely difficult to press and the truck became unsafe to drive. The issue happened unexpectedly while the vehicle was in operation, creating a serious safety hazard and risk of accident or injury. After the incident, the truck was inspected by a mechanic who advised that the brake booster had essentially fallen apart and that I effectively had little to no braking capability. I was also informed that the condition and quality of the braking components were not acceptable for a vehicle of this age. This vehicle is only five years old and has been regularly maintained. For approximately the last three years, routine maintenance including oil changes, tire rotations, and inspections were performed at a Chevrolet dealership. At no time was I warned of any brake-related issue or safety concern. A major brake system failure should not occur suddenly on a properly maintained vehicle, especially without warning. This incident was extremely dangerous and could have resulted in a serious crash. I am submitting this complaint because I am concerned there may be a defect involving the brake system, brake booster, ABS system, or related components on this vehicle.

The contact owns a 2021 Chevrolet Silverado. The contact stated that while driving at various speeds, a flashing check engine warning light appeared on the instrument panel. The vehicle was taken to a dealer where the received fault code PO300 which was a general code for a misfire in the engine. The contact brought the vehicle back to the dealer multiple times due to various fault codes; however, the contact was given the same information. The contact then received a "Low Oil, Check Oil", the contact checked the oil and discovered no oil on the engine's dipstick. Due to the failure, the vehicle was towed back to the dealer where they began an oil consumption test. The valves collapsed and the dealer replaced the valve in cylinders 1,3,5, and 7 as well as the spark plugs. Despite the repair, the contact stated that the failure returned almost two months later. The contact continued the oil consumption test and stated that the vehicle was losing 3 quarts of oil each oil change. The manufacturer had been notified of the failure on multiple occasions and had made multiple vehicle buyback requested; the manufacturer denied each buyback request. After his latest phone call with the manufacturer, he was referred to the NHTSA Hotline to file a complaint. The vehicle was not repaired. The failure mileage was 12,000.

The contact owns a 2021 Chevrolet Silverado LD Crew. The contact stated that while reversing the vehicle, the rear end locked up. Also, when accelerated, the vehicle jerked forward and stalled. When the vehicle is shutdown and restarted the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage. 64,900.

My 2021 Chevrolet Silverado 1500 with the 3.0 diesel is experiencing constant high running engine fan, engine power reduced notification on the dash, fluctuating temperature and is showing a P1098 code indicating the coolant control valve needs replaced. GM has issued a special coverage on this part, which my truck is well withing the parameters for. However, GM tells me the VIN isn't associated with the special coverage. I have spoken with other owners who have the same year / engine vehicle as I do, and GM replaced their part for free under the special coverage. I have not been giving any explanation as to why my vehicle isn't covered even though the bulletin N25250834 clearly states my vehicle and year. I escalated to the GM executive level and have failed to get my coolant control valve replaced. The vehicle reducing engine power is a major safety concern in traffic as well as the obvious over heating issue. GM is blatantly mishandling the situation.

47,000 miles and the transmission coolant lines are weeping and need to be replaced.

I am submitting a formal safety complaint regarding an electrical system failure on my 2021 Chevrolet Silverado with approximately 61,000 miles. I brought the vehicle to Taylor Grubaugh Chevrolet of Waynesville after the check engine light illuminated. The dealership diagnosed a premature wiring harness failure caused by chafing. They also stated that this issue is known to affect multiple GM vehicles and is documented in Technical Service Bulletin 21 NA 149. Wiring harness failure presents a significant safety concern. A compromised harness can lead to erratic electrical behavior, reduced engine performance, stalling, or sudden loss of power while driving. With that the concern a possible vehicle malfunction or losing power in traffic came to light. The dealerships service department confirmed the problem, verified the wiring harness failure, & referenced the applicable GM technical bulletin. The vehicle was inspected by the authorized Chevrolet dealership. GM declined to cover the repair. No police, insurance, or other third party inspections have been conducted. Despite acknowledging that this is a documented & recurring issue across GM models, the GM informed me that the repair would not be covered under warranty or recall. At only 61,000 miles, a wiring harness failure due to chafing is not consistent with normal wear & tear & instead suggests a premature defect. Given that this is a known and documented defect, I believe it should be recalled. After further research, I

Once I disengaged the auto stop on my vehicle, I would accelerate from a stop and I would loose my brakes. This happened several times. I took it to the shop and was told it was fine. Finally, one day I was descending on an overpass, disengaged my auto stop and my brakes were complete failure, even my emergency brakes, my check engine light engaged (the code read emissions issue). Was able to stop in a field, get it back to the dealership to find out I lost the master break cylinder but no indication on prior visits. The truck, check engine light will spontaneously start blinking but hold no codes. I have had it routinely serviced and it will overheat and oil will run hot but mechanics find no issues

The contact owns a 2021 Chevrolet Silverado1500. The contact stated while driving the vehicle he felt shuttering and noticed his automatic start does not start. The contact also experienced engine reduced power issues, preceded by a warning sign on the dashboard stating "Engine Power is Reduced" while driving. Additionally, the contact noticed a significant loss of mileage per gallon and a loss of oil. The contact noticed a check engine light on, which had codes that had a crankshaft and cam shaft sensors that are not operating properly, which the vehicle cannot be inspected due to the failure. The vehicle was taken to a dealer where it was diagnosed to need a new timing chain to control on the cams and crankshaft. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 110,000.

The contact owns a 2021 Chevrolet Silverado. stated that while driving on several occasions at various speeds, the vehicle lost power and did not accelerate as intended. The check engine warning light illuminated. The vehicle was taken to a dealer but was not diagnosed. The vehicle was then taken to an independent mechanic where it was diagnosed that the coolant control valve needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 115,000.

While driving on the freeway, the truck suddenly displayed a flashing check engine light along with multiple warning/error messages. I was able to limp the vehicle to the nearest mechanic, where they inspected it and confirmed catastrophic internal engine failure. Upon removing the oil pan, they found large copper-colored metal chunks and metallic glitter throughout the engine oil, indicating severe internal bearing/component failure. The vehicle is no longer safe to operate and now requires major engine repair or replacement.

LIFTER FAILURE AT 50,100 MILES- JUST OUT OF POWERTRAIN WARRANT BY 136 DAYS. FAILURE OCCURED ON FREEWAY. AFTER HEARING METALLIC SOUND SERVICE BRAKE SYSTEM LIGHT, TRACTION CONTROL AND SERVICE ENGINE LIGHT CAME ON. THIS OCCURED 5/3/26.

On 4/27/26, my family and I were traveling south on Colorado C470 at 8 AM. Our 2021 Chevy Silverado 1500 had catastrophic engine failure at highway speed as we were passing an 18 wheeler. The failure caused the vehicle to lose power and engine, and the display said to put the truck in Neutral and restart the engine. After coasting to the shoulder, the engine would not restart. We were stranded on the highway during rush hour for an hour and 1/2 waiting for a tow truck. This scenario is identical to the safety risks outlined in NHTSA Recall 25V274 (and investigation PE 24-007). This failure resulted in the intake manifold being physically displaced and damage to the timing assembly. The dealership is attempting to deny coverage by claiming the "upper gallery" damage (timing/intake) is unrelated to the "lower end" issues covered under the special coverage/recall [ this is a Dealer Quote]. This logic is technically flawed: Consequential Damage: A catastrophic lower-end failure (e.g., a broken connecting rod or seized crankshaft bearing) at 80 mph creates the massive internal pressure required to shatter or "blow off" a plastic intake manifold. Timing Linkage: The timing chain is physically connected to the crankshaft. It is mechanically impossible to have a catastrophic crankshaft failure at high RPMs without causing secondary damage to the timing gears and "upper gallery". Recall Precedence: My vehicle exhibits the exact failure mode—loss of motive power due to bearing failure—

Two grounding straps failed on my 2021 Silverado Trail boss lt. GM has a recall for this exact problem under N252515590, model years 2019-2024. Apparently my vin number is not associated with this recall, yet my dealer just did the recall repair. They said my truck did not qualify for the GM recall and I was forced to pay for the repair. The failing grounding straps caused my power steering to go out and my brake system and safety traffic sensors to fail as well. This was very dangerous as it would fail randomly while driving the truck. There were no warning signs or lights on the the truck to indicate any problems.

Valve Cover leak, Known Issue by GM, TSB 22-NA-027, refusing to warranty known problems & charge the customer $4,000 in repairs.

Vehicle: 2021 Chevrolet Silverado VIN: [XXX] Mileage at time of incident: Approximately 68,000 miles Date of incident: April 24, 2026 Approximate speed: 75 mph Weather/road conditions: Clear, sunny day Was the vehicle towed? No Did the engine restart? Yes My 2021 Chevrolet Silverado experienced a sudden loss of power and stalled while I was driving on the highway at approximately 75 mph. The weather was clear and sunny, and road conditions were normal. This created a serious safety concern because the vehicle lost power while traveling at highway speed in traffic and could have caused a crash. The vehicle did restart after the incident and was not towed, but it had to be taken in for service after the power loss/stalling event. The dealership later advised that the oil was low on the dipstick and stated they would change the oil and complete a recall/service update. However, I have maintained the vehicle with regular oil changes, and at the time of the incident, the vehicle’s oil life monitor still showed approximately 50% oil life remaining. I do not believe this should be dismissed as a simple lack-of-maintenance issue. I am concerned that the sudden loss of power/stalling may be related to an engine, fuel, oil pressure, electrical, ECM, or recall/service campaign issue. I am also concerned that the vehicle was low on oil despite regular oil maintenance and the oil life monitor still showing about 50%. The vehicle is currently at Tyrell Chevrolet for inspection/service. I h

The vehicle was shiifting sluggishly and the check engine light came on. The dealer has indicated that I need to replace a transmission controller valve body. This problem has been acknowledged by GM and a recall initiated, but my vehicle was not included in the recall. This does not seem reasonable and I believe the recall should be expanded.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that after parking the vehicle, it was later discovered that the rear tailgate door had erroneously opened. The contact indicated that the failure had occurred on multiple occasions. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure but no assistance was offered. The failure mileage was 22,000.

The special coverage program on the coolant valve for My 2021 Chevy Silverado (70,000mi) is not covered due to my vin not being on the list. Something they say and know is an issue, but not covering it for the vehicles they say they’re covering it for.