Complaint volume
667 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
667 consumer-submitted complaints on record for the 2020 Chevrolet Silverado, grouped by component category.
Buyer interpretation
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
667 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
The most common categories are engine, power train, service brakes. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Enriched records include 13 crash reports, 9 fire reports, 7 injury reports, and 0 fatality reports. These fields come from complaint records and should be read in context.
Mileage is available on 191 complaints, with an average reported failure mileage of 40,829 miles. Compare that with the mileage on the listing.
Build a buyer checklist to turn these issues into questions and inspection points.
667 total complaints on record
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| May 2025 | STEERING,SUSPENSION | The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while her husband was driving 55 MPH, there was an abnormal sound coming from the vehicle. The driver pulled over to the side of the road and inspected the vehicle. The contact stated that her husband observed that the driver’s side front wheel had detached. The vehicle was towed to the residence. The vehicle was then towed to a dealer where it was diagnosed and determined that the control arms, rack and pinion, and ball joints had separated and needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 88,907. | Crash: No Fire: No Towed | 88,907 |
| May 2025 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE | I’m reporting a safety concern involving a 2020 Chevrolet Silverado 1500 with the 3.0L Duramax diesel engine. The vehicle went into limp mode and died on the side of the road. AAA installed a new battery, which temporarily restored operation, though the “Service Charging System” warning remained. I drove it home, let it sit for several days, and then took it to a Chevrolet dealership. Although the warning light had cleared, I brought it in out of caution. The first dealer diagnosed a failed alternator and recommended replacement at a cost of $2,158.75. I was also told the vehicle was not included in any active recalls related to this issue. Believing the price was high and wanting a second opinion, I went to another Chevrolet dealer. They ran the same diagnostic and found no issue with the alternator or generator, charging only a diagnostic fee. They also said if the alternator had needed replacement, the cost would have been around $1,300. I mentioned to both dealers that I had seen similar alternator/charging system failures recalled on other 2020 Silverado models. Online forums and customer complaints suggest that many Silverado 1500 trucks with the 3.0L Duramax are experiencing similar problems, indicating a potentially broader issue. Given the inconsistency in diagnostics, the significant cost discrepancy, and the number of similar consumer reports, I believe this issue may be more widespread than current recalls reflect. I respectfully request that NHTSA investigate whether the existing recall should be expanded or if a new recall should be issued for 2020 Silverado 1500 models equipped with the 3.0L Duramax. This issue occurred shortly after a separate failure related to the NOx sensor, which I am submitting under a separate complaint. | Crash: No Fire: No | Unknown |
| May 2025 | UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM | I am reporting an issue with a 2020 Chevrolet Silverado 1500 equipped with the 3.0L Duramax diesel engine. The vehicle experienced a failure of the NOx Sensor Position 2, which significantly impacted performance and emissions compliance. GM previously issued Emission Recall N212351211 (March 7, 2023) for other diesel Silverado models regarding improper ECM detection of NOx sensor faults. The issue in my vehicle appears functionally identical, yet this engine and model were not included in that recall. The sensor was replaced and reprogrammed at a Chevrolet dealership at the owner's expense. After contacting Chevrolet, a customer retention check was provided, covering roughly half of the total cost. While appreciated, the remaining cost burden remains significant. If this model is eventually included in the recall, it may allow for full reimbursement and support for other affected owners. Online forums show that many 3.0L Duramax owners are experiencing similar failures, suggesting this may be a widespread and systemic defect. Due to the strong similarities with the recalled condition in other models, I respectfully request that NHTSA investigate whether this recall should be expanded to cover additional affected vehicles. This issue presents both reliability and emissions compliance concerns. In addition, the vehicle developed a separate mechanical/electrical problem shortly after the NOx sensor failure. Because it involves different systems, I will file a separate complaint regarding that issue. | Crash: No Fire: No | Unknown |
| May 2025 | POWER TRAIN | 8 speed transmission failure. | Crash: No Fire: No | Unknown |
| May 2025 | ENGINE AND ENGINE COOLING | The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, there was a ticking sound coming from underneath the hood of the vehicle. The contact stated that the sound was evident when the vehicle was started, and while the vehicle was idling. The check engine warning light was flashing, and the vehicle was shaking while idling and while driving at various speeds. The vehicle was taken to the dealer, who diagnosed that the engine had failed due to a failure with the lifters. Additionally, there was coolant leaking into the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 79,400. | Crash: No Fire: No | 79,400 |
| May 2025 | POWER TRAIN | The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the vehicle was jerking. Additionally, the contact stated that upon starting the vehicle and attempting to shift into gear, the vehicle failed to respond. The check engine warning light was illuminated. The vehicle was towed to Razorback Transmission Services, where it was diagnosed that the transmission had failed and needed to be rebuilt. The vehicle was repaired. The contact related the failure to an unknown recall. The manufacturer was contacted for reimbursement assistance and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 175,000. | Crash: No Fire: No | 175,000 |
| May 2025 | POWER TRAIN | The transmission has been slipping and shuttering which shouldn’t be an issue at 119,000 miles. This opposed a huge safety risk for me and my girlfriend on the highway. I was driving and it shuttered so bad i had thought the wheel was loose and coming off. I had to pull over on the highway to check the lugs and came to find out it’s the transmission, because it shuttered numerous times after. On top of that the entire trip was the transmission shuddering slightly making the wheels cut the the left and right. But throughout the trip, it had a slight shutter the entire time and a couple of big shutters, and one very large shutter that had my girlfriend think I ran over a bunch of wood in the road resulting in me pulling over being in danger and possibly wrecking from the shaking, and having to exit my truck on the side of the highway with 18 wheelers and other vehicles flying at 80+ miles an hour. Besides the safety issue, there should be no reason for these transmission going out like this at 60k miles and 100k miles it’s extremely cheap of GM and a huge hazard to many families. | Crash: No Fire: No | Unknown |
| May 2025 | POWER TRAIN,VEHICLE SPEED CONTROL,SERVICE BRAKES | Transmission is changing out very hard in each gear. On tonight while I was driving, I lost speed on the interstate and when I push the accelerator, It was like back wheels were locked up. I left it at the next exit gas station and came back and towed it home. Lucky I was able to put hazard lights on and get off the side of the road but it was very slow speed. Yes I have had it look at certified dealer under Cheverolet. It was no warning light. I was going 65 and in a split second the rpm went up high and I was doing like 25. Once I finally made it to the gas station and got out the truck smell like a burning smell | Crash: No Fire: No | Unknown |
| May 2025 | UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM | I am reporting an issue with a 2020 Chevrolet Silverado 1500 equipped with the 3.0L Duramax diesel engine. The vehicle experienced a failure of the NOx Sensor Position 2, which significantly impacted performance and emissions compliance. GM previously issued Emission Recall N212351211 (March 7, 2023) for other diesel Silverado models regarding improper ECM detection of NOx sensor faults. The issue in my vehicle appears functionally identical, yet this engine and model were not included in that recall. The sensor was replaced and reprogrammed at a Chevrolet dealership at the owner’s expense. After contacting Chevrolet, a customer retention check was provided, covering roughly half of the total cost. While appreciated, the remaining cost burden remains significant. If this model is eventually included in the recall, it may allow for full reimbursement and support for other affected owners. Online forums show that many 3.0L Duramax owners are experiencing similar failures, suggesting this may be a widespread and systemic defect. Due to the strong similarities with the recalled condition in other models, I respectfully request that NHTSA investigate whether this recall should be expanded to cover additional affected vehicles. This issue presents both reliability and emissions compliance concerns. In addition, the vehicle developed a separate mechanical/electrical problem shortly after the NOx sensor failure. Because it involves different systems, I will file a separate complaint regarding that issue. | Crash: No Fire: No | Unknown |
| May 2025 | POWER TRAIN | The oil coolant cooler is leaking oil into my antifreeze reservoir, but nothing is in the oil pan, which could cause damage to the engine a very expensive fix, and this should be covered under drivetrain by all means | Crash: No Fire: No | Unknown |
| May 2025 | SUSPENSION,SERVICE BRAKES,ENGINE | I have the L87 6.2 liter V8 engine from General Motors. I had sudden engine failure. Apparently the rods and bearings are bad. It is the same problem as the recall issued for 2021-2024 vehicles, exept for my truck is a year 2020. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| May 2025 | ENGINE | On [XXX] I pulled off from a Red Light and vehicle started flashing codes. I slowed down and engine was missing. I had vehicle towed to Gilmore's Auto Center in Culpeper Virginia. The truck was diagnosed later that day as a Rod Bearing failure. The engine gave no warnings prior to that day. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| May 2025 | ENGINE | Lifter issues, loss of power, flashing check engine light | Crash: No Fire: No | Unknown |
| May 2025 | POWER TRAIN | Employee was driving company car on backroad, started to rev high im assuming from trying to accelerate. Car started to slow and was pulled into a parking lot and towed to dealer. Upon inspection it was shown transmission cooler lines broke at crimps and quoted 2K to fix just the lines | Crash: No Fire: No | Unknown |
| May 2025 | ENGINE AND ENGINE COOLING,POWER TRAIN,ENGINE | The contact owns a 2020 Chevrolet Silverado 1500. The contact stated after an independent mechanic had performed an oil change on the vehicle, the vehicle was moved and parked. The contact stated that upon attempting to start the vehicle, the vehicle failed to start. The mechanic diagnosed that the engine had seized and there were metal shavings in the oil. The vehicle was towed to the dealer, where it was diagnosed that the engine needed to be replaced. The dealer informed the contact that the manufacturer had denied coverage because the vehicle was previously serviced by an independent mechanic. The vehicle was repaired at the contact's expense. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). Additionally, the contact stated while idling and while driving at various speeds, the vehicle made an abnormal whining sound. The vehicle was taken to Bomnin Chevrolet Dadeland (8455 S Dixie Hwy, Miami, FL 33143), where it was diagnosed that the transmission was failing and there were metal shavings found in the transmission. The dealer replaced the transmission. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was approximately 25,000. | Crash: No Fire: No | 25,000 |
| May 2025 | POWER TRAIN,ENGINE | The vehicle was being used in a normal daily driving routine. I was stopped(fortunately) at a traffic light. The light turned green and I went to proceed and began to press the gas pedal and the engine made a loud pop noise and began to barely stay running. I brought the vehicle to the shop(GM dealership) for diagnosis and repair. The motor had to be rebuilt new camshaft, lifters, etc. The vehicle is also having transmission issues, heavy vibration, hard shifts and constant fluctuations in the rpms while maintaining a set speed. The transmission issue still has not been resolved. | Crash: No Fire: No | Unknown |
| May 2025 | POWER TRAIN | My truck rpm goes idle while driving also a loud knocking sound when accelerating | Crash: No Fire: No | Unknown |
| May 2025 | POWER TRAIN,UNKNOWN OR OTHER | chevy Silverado shakes at 20, 40,65 and 70 mph chevy shake | Crash: No Fire: No | Unknown |
| May 2025 | ENGINE | chevy has a well known issue with lifters failing in the 5.3 motor because of the afm. it has failed on me twice and had to pay twice to get this fixed and i’m concern one day the engine will just blow like other people have complained about. i even went to the dealership and even spoke to the part department and they have admitted this but no fix for it has been put in place. we need a recall on this motor that’s effecting thousands of people. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | While highway driving on 4/8/2025, for the 3rd time in 3 months, engine light came on and I lost all control of my cruise control, parking brake disabled and loss of engine power immediately reducing my highway speed to approximately 50 mph which was very dangerous. I had to cautiously return home & called the Chevy dealer immediately. They had repaired the lifters twice before, with the most recent repair on the lifters and push rod just one month earlier. This second repair was covered under their repair warranty. Currently, it took about 10 days before a loaner car was available (after a poor google review). To date (4/30/2025) I have not received ANY feedback from the dealer (Starling Chevrolet in Mt. Pleasant, SC) regarding any repair or engine diagnosis. The symptoms of this third failure was just like the previous two failures (3 failures in 3 months!). I feel like this vehicle has Major issues as I have also had to have the radio/infotainment system replaced twice since the original purchase. PLEASE have Chevrolet do an engine recall on their 5.7 liter engine!! | Crash: No Fire: No | Unknown |
| Apr 2025 | POWER TRAIN | Transmission slips, jerks, delayed shifting symptoms consistent with technical service bulletins and known recalls on later models. Add that it was purchased new and is still financed | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | While traveling on a rural state highway, the #8 lifter bearing failed, causing the engine to lose considerable power and the dash light to come on. No advanced warning of engine problems was noticed prior. The transmission also went into limp mode not allowing the vehicle to shift gears. At the same time the ABS and ESC systems also went into a safety mode diminishing the stopping power of the vehicle. Upon inspection by a licensed mechanic it was discovered that the #8 lifter bearing and the camshaft were both damaged at that time. Total replacement cost was over 10k and it took almost 6 months to find a rebuilt L87 engine at that time because there was almost no supply available as a result of these engines having multiple failures nationwide | Crash: No Fire: No | Unknown |
| Apr 2025 | POWER TRAIN,ENGINE | I just saw a recall for 2021-2024 vehicles for connecting rod/crankshaft engine components. I am not 100% sure that i have the same problem but my warning signs are the same. For example, there is a knocking sound in engin, it shifts abnormally and it hesitates and has reduced propulsion. I talked to several other Trail boss owners that had to have their Lifters repaired so maybe it is that? These problems are happening to everyone prior to even hitting 70k miles. I cannot afford to fix this if it is a problem that shouldnt be happening in the first place, due to crappy manufacturing. | Crash: No Fire: No | Unknown |
| Apr 2025 | PARKING BRAKE,ELECTRONIC STABILITY CONTROL (ESC),ENGINE | The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving 75 MPH, the vehicle lost motive power, with the check engine, Service ESC, and the “Service Parking Brake” warning lights were flashing. The vehicle was towed to a dealer where it was diagnosed and determined that the engine was blown, and the engine needed to be taken apart for additional diagnostic tests. The vehicle was not repaired. The vehicle was then towed to an independent mechanic where it was diagnosed and determined that the cam phaser and lifters had failed and the engine long block needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 104,000. | Crash: No Fire: No Towed | 104,000 |
| Apr 2025 | POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM | On Feb 10, 2025 while in busy mid-day traffic on the highway going 55mph my vehicle without any warning signs or warning messages on dash, or dash indicator lights suddenly went into limp mode , began making a loud knocking from the engine, and started shutting down. I stopped the vehicle as soon as I safely could do so and had it towed back to the selling dealer for them to diagnose the issue. The dealer then informed me that i had a bent lifter on the left bank but they did this based on codes and not any tear down. They referred me to another local dealer. I had my vehicle towed there where they also stated lifter. Once they began to replace the lifters on the left bank scarring was found on my #3 cylinder wall and at that point I was told that my truck had catastrophic engine failure and the engine would have to be replaced. They also told me that my truck had no oil in it and the issue was caused from carbon build up. I have had every maintenance service performed on time and at the selling dealer and have all service records. I was not overdue on maintenance. I have never been told about any oil leaks or any other issues that needed to be resolved on my vehicle. I had driven the truck the night before with no issues.. There was no oil on the ground or under the vehicle for them to say there was no oil in the vehicle. I was never told that i needed spark plugs due to carbon. I believe that this has to due with the AFM issue that GM is well aware of. I had to purchase another vehicle due to the damage that was found on this required an engine replacement | Crash: No Fire: No | Unknown |