Complaint volume
732 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
2021 Chevrolet Silverado Complaints
732 consumer-submitted complaints on record for the 2021 Chevrolet Silverado, grouped by component category.
732 Total complaints
16 Crash reports
11 Fire reports
11 Injury reports
Complaint data reflects consumer-submitted reports. A complaint is not proof
of a defect, recall, or manufacturer fault. Enriched severity fields come
from official bulk records when the complaint can be matched by ODI number.
Buyer interpretation
How to use these complaints before buying
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
Pattern to inspect
The most common categories are engine, power train, engine and engine cooling. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Severity flags
Enriched records include 16 crash reports, 11 fire reports, 11 injury reports, and 0 fatality reports. These fields come from complaint records and should be read in context.
Mileage clue
Mileage is available on 160 complaints, with an average reported failure mileage of 55,255 miles. Compare that with the mileage on the listing.
Questions to ask the seller
- Have you had any problems related to engine, power train, engine and engine cooling?
- Can I see recent maintenance and repair records?
- Has the vehicle ever been towed, involved in a crash, or repaired for the same issue twice?
- Can we also check the recall record for this 2021 Chevrolet Silverado?
Used-car checklist
Use these complaints before the test drive.
Build a buyer checklist to turn these issues into questions and inspection points.
2021 Chevrolet Silverado
Build buyer checklist Compare with other years Sends year, make, and model to pre-fill your checklist.
How severe are the 2021 Chevrolet Silverado complaints?
16 Crash
11 Fire
11 Injury
0 Fatality
62 Towed
6 Medical attention
What are the most common 2021 Chevrolet Silverado complaint categories?
ENGINE 212
POWER TRAIN 126
ENGINE AND ENGINE COOLING 41
ELECTRICAL SYSTEM 38
POWER TRAIN,ENGINE 36
UNKNOWN OR OTHER 21
STRUCTURE 19
STEERING 18
LATCHES/LOCKS/LINKAGES 14
SERVICE BRAKES 14
732 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| Oct 2025 | ENGINE AND ENGINE COOLING | See attached document for complaint. | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | Left and right cylinder heads failed. Left bank at 20,000 and right bank at 40,000 miles | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE AND ENGINE COOLING | The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and confirmed that parts were not available for the recall repair. The manufacturer was made aware of the issue and confirmed that there was no expected date for parts availability. The contact had not experienced a failure. | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | My belief is a valve rotated and the cam shaft has defligrated to the point that the engine casing has been pierced. Chevrolet is saying I am not covered by the recall for my 2021 Chevrolet Silverado 1500 | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE,ENGINE AND ENGINE COOLING | The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while her husband was driving approximately 60 MPH, the vehicle started shaking and lost motive power. The contact stated that the check engine warning light was illuminated. The driver was able to drive the vehicle back to the residence at a reduced speed. The vehicle was then driven to a local dealer to be diagnosed. The dealer diagnosed the vehicle and determined that the engine control module and sensors needed to be replaced. The vehicle was repaired. The vehicle was retrieved; however, while driving off the lot, the check engine warning light illuminated, and the vehicle started shaking violently. The vehicle was with the dealer. The dealer then diagnosed the vehicle and determined that two of the lifters in the engine needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was informed of the failure and confirmed that the VIN was not included in the recall. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 70,000. | Crash: No Fire: No | 70,000 |
| Oct 2025 | ENGINE AND ENGINE COOLING | The contact's son owns a 2021 Chevrolet Silverado 1500. The contact stated that while her son was driving at a moderate speed, the vehicle lost motive power without warning. Due to the failure, the vehicle was towed to a dealer where the contact was informed that the vehicle was included in NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact was also notified that the parts for the recall repair were unavailable. The vehicle remained with the dealer. The vehicle was not repaired. The contact's husband notified the manufacturer of the failure and was provided a case number. The failure mileage was 47,000 | Crash: No Fire: No Towed | 47,000 |
| Sep 2025 | POWER TRAIN,ENGINE | Truck has under 45k miles on it. After reaching 35-40mph, it began to shake and jolt. Once we drove approximately 20miles, the engine light began flashing, in addition to the parking break light turning on. The truck began to lose power and we were forced to pull over on the side of a busy road. After waiting a little bit, we were able to drive it to our local shop who advised us to tow it back the the dealership for repairs. | Crash: No Fire: No | Unknown |
| Sep 2025 | ENGINE,FUEL/PROPULSION SYSTEM | Engine failure in October of 2023. Had vehicle towed to dealership and was told truck was not under warranty because of mileage and was going to be months before they can get to it because of parts on backorder or shortage of parts. Had truck towed to another shop and had the repairs done there, at my expense, for a total of $15,600. Fast forward to July of 2025, recall comes out on my truck for engine failure. Got reimbursement form with recall notice in the mail and got the required documents to submit form and was denied reimbursement for the following reasons, truck is too old for reimbursement and also because I did not have the work performed by a dealership. It is my understanding that there is a federal law stating that a manufacturer can not deny reimbursement for using a 3rd party auto shop for repairs and as far as the truck being too old for reimbursement, the repairs were done well within the 10 years allowed by federal law so I don't understand what the problem is . Please help Thanks | Crash: No Fire: No | Unknown |
| Sep 2025 | POWER TRAIN | The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the check engine warning light illuminated, and the transmission shifted independently to a lower gear. The contact stated that the downshift of the transmission caused the rear wheels to lock up. The contact pulled over and turned off and restarted the vehicle, and was able to reset the transmission. The contact stated that the failure was intermittent, but whenever the failure occurred, the check engine warning light was illuminated before the vehicle shifted to a lower gear. The vehicle was taken to an Auto Parts Store, where a handheld scanner was used to clear the transmission fault code. The contact stated that after the code was cleared, the vehicle operated normally, but the failure eventually reoccurred. The contact had not taken the vehicle to a dealer or an independent mechanic. The vehicle was not properly diagnosed or repaired. The contact researched online and related the failure to NHTSA Campaign Number: 24V797000 (Power Train); however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 72,000. | Crash: No Fire: No | 72,000 |
| Sep 2025 | ENGINE AND ENGINE COOLING | The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the oil change message was displayed. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was unknown. | Crash: No Fire: No | Unknown |
| Sep 2025 | POWER TRAIN | Transmission shuddering and vibration | Crash: No Fire: No | Unknown |
| Sep 2025 | ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES | The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle failed to start. The vehicle was taken to the local dealer, where it was diagnosed and determined that the battery needed to be replaced. The vehicle was repaired on two occasions, but the failure persisted. While attempting to open the trunk, the trunk failed to open. The manufacturer was not contacted. The failure mileage was approximately 500. | Crash: No Fire: No | 500 |
| Sep 2025 | ENGINE | The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 35 MPH, the vehicle lost automotive power. There was no warning light illuminated. The contact immediately pulled over and attempted to restart the vehicle; however, the vehicle failed to start. The vehicle was towed to a local dealer where it was diagnosed, and the contact was informed that the engine was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 77,000. | Crash: No Fire: No | 77,000 |
| Sep 2025 | ENGINE | Coolant control valve manufacturer defect, 3.0 duramax LM2 | Crash: No Fire: No | Unknown |
| Sep 2025 | POWER TRAIN,ELECTRICAL SYSTEM | See attached document for complaint. | Crash: No Fire: No | Unknown |
| Sep 2025 | POWER TRAIN | See attached document for complaint. | Crash: No Fire: No | Unknown |
| Sep 2025 | ENGINE | We have a 2021 Chevy Silverado 1500 in which the engine has failed. We believe this is the issue involved in the recall of Chevy Trucks. It needs to be added to the recall list. It has been unable to move since 2/17/2024. We have reported this to GM but they have not responded. Thank you | Crash: No Fire: No | Unknown |
| Sep 2025 | ENGINE AND ENGINE COOLING | The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the engine was misfiring. The vehicle was taken to an independent mechanic, where the contact was informed that the cylinders were misfiring, and the mechanic recommended that the spark plugs be replaced. The contact replaced the spark plugs with the assistance of a retired mechanic; however, the failure persisted. The vehicle was taken back to an independent mechanic and was diagnosed with a cylinder misfire. The mechanic recommended removing the dynamic fuel system management by replacing the camshaft, lifters, and other unknown parts. The dealer was notified of the failure and advised the contact to schedule an appointment for a diagnostic test. The vehicle was not repaired. The contact related the failure to GM Campaign Number: N212353840. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 65,000. | Crash: No Fire: No | 65,000 |
| Sep 2025 | POWER TRAIN | No reverse in transmission and sporadic engagement and shifting in forward gears. | Crash: No Fire: No | Unknown |
| Sep 2025 | POWER TRAIN | The transmission is making a clanking noise during the lower gears. The local dealer said the transmissions is "done for". The truck has around 125,000 miles on it. The truck is available for inspection. When checking for recalls, i saw the GMC were being recalled for the same issue. | Crash: No Fire: No | Unknown |
| Sep 2025 | ENGINE,FUEL/PROPULSION SYSTEM | I have a 2021 chevy silverado and in october of 2023 I lost oil pressure and took the truck to a mechanic shop and they determined that the engine had spun rod bearings and crankshaft bearings inside the engine block and needed to be rebuilt. I had them make the repairs and upgraded the engine with aftermarket parts which cost me $15,600. When the recall came out this year it came with a form for reimbursement. I collected all the documents required to submit for reimbursement and I was denied because I did not have the work performed at a gm dealership. I didn't take it to the dealership because of the time they required to fix the truck and it was already out of warranty because of the mileage and I really didn't want to replace the engine components with more of their faulty parts. Just because I had the repairs done at a 3rd party shop does not excuse the fact that they sold me a truck with a faulty engine. | Crash: No Fire: No | Unknown |
| Sep 2025 | UNKNOWN OR OTHER,ENGINE | I am filing a formal complaint regarding a serious safety concern with my 2021 CHEVROLET SILVERADO, following the completion of recall N252494001 performed by Galleria Chevrolet in Dallas, TX. Prior to this recall work and related inspections, my vehicle operated without any abnormal engine noise. After the recall inspection and a subsequent fuel injector repair performed by the dealer, my vehicle began producing a bottom-end engine noise that had never been present before, and ultimately we have catastrophic engine failure. What is highly concerning is that the dealership staff previously documented the situation in writing as follows: “We performed the recall inspection and the truck passed. After performing an injector repair now there is a bottom-end noise when it's running. Did the failed injector possibly affect the validity of the test? That may be the case. We know that the truck did not experience the noise before the inspection; is it possible that the steps we took affected the truck in a way that got the noise to show itself? That’s what we need to determine.” Despite this acknowledgment, the dealership is now denying any responsibility, classifying the damage as unrelated “wear and tear”. This reversal appears highly suspicious, as it contradicts their own observations and written notes. It suggests that the dealership and GM may be refusing to fulfill their obligations under the recall and repair warranty, leaving me with a vehicle that has a blown engine and a significant safety risk. Given the timing of the noise, occurring directly after recall work and injector repair, and the internal documentation from the dealership itself, I request NHTSA investigate whether: This issue is part of a broader trend affecting other vehicles under the same recall. GM and its dealers are properly honoring their obligations to fully repair vehicles impacted by recalls. Consequential damage resulting from recall work is being systematically denied coverage. | Crash: No Fire: No | Unknown |
| Sep 2025 | ENGINE AND ENGINE COOLING | The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 70 MPH, there was a knocking sound coming from the engine compartment before the vehicle went into "LIMP Mode" and decelerated to approximately 35 MPH. The check engine warning light was illuminated. The vehicle was driven to the local dealer, who diagnosed that the engine "Crank Shaft" had failed and needed to be replaced. The manufacturer was notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 165,000. | Crash: No Fire: No | 165,000 |
| Sep 2025 | POWER TRAIN,ELECTRICAL SYSTEM | Vehicle: 2021 Chevrolet Silverado 1500, 3.0L LM2 Turbo Diesel Mileage at most recent failure at 106k miles Complaint Narrative This vehicle has experienced repeated, serious defects affecting engine, transmission, emissions system, and safety recall performance. Despite numerous repair attempts over three years, the problems remain unresolved and the vehicle is currently undriveable and held by the dealership (since August 17, 2025). Key safety concerns: Transmission failure: Transmission catastrophically failed at 78,942 miles due to excessive metal contamination, requiring full replacement. Transmission issues have persisted even after replacement. Recall N24254440 (rear wheel lock-up): Dealer attempted recall repairs multiple times in 2025 but failed due to programming errors. Recall remains incomplete and unresolved. Hard starting / reduced power: Vehicle intermittently fails to start or loses propulsion, creating risk of stalling in intersections or traffic. Engine/emissions failures: Multiple check engine events with NOx sensors, exhaust differential pressure sensors, and coolant flow valve failures. Current status: Vehicle has been in dealer custody since Aug 17, 2025, with no completion date. Dealer reports unresolved oil leak, check valve/box sensor replacement pending, and open recall not fixed. The cumulative history shows systemic defects across powertrain and emissions systems, ongoing safety recall failures, and lack of durable repairs. I am providing all invoices, videos, and documentation upon request. --- Chronological Service Timeline Invoice #Mileage (in/out)DateReported Issue / Repair Attempt 33432337,290 → 37,62607/11/22 – 07/30/22Check engine light. Multiple fault codes. Dealer performed diagnostics, suspected exhaust leak, removed components for inspection. 33433837,450 → 37,50807/ | Crash: No Fire: No | Unknown |
| Aug 2025 | POWER TRAIN | The transmission shudders during light throttle at cruising speeds and low rpms, tachometer show continuous jumps in rpm and vehicle loosing power. No check engine lights. Concerned that transmission behavior can make the vehicle a hazard on highyways. Shuddering and hesitation on acceleration. Transmission fluid was changed at 70k miles and symptoms still persist. Current mileage 71k. | Crash: No Fire: No | Unknown |