Chevrolet Silverado Complaints (2021)

989 consumer complaints on file.

#11692446October 9, 2025
ENGINE
Left and right cylinder heads failed. Left bank at 20,000 and right bank at 40,000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691701October 6, 2025
POWER TRAIN
The contact owns a 2021 Chevrolet Silverado 3500. The contact stated that while driving approximately 65 MPH, the vehicle unexpectedly went into Low Power Mode, with the check engine and low power mode warning lights illuminated. The contact was able to restart the vehicle. The vehicle was taken to an independent mechanic, where DTC: P2706 and P2732 were retrieved, and the contact was informed that the valve body and certain components of the transmission required reprogramming. The vehicle was not repaired. The contact later received notification of NHTSA Campaign Number: 24V797000 (Power Train). The dealer was contacted but the vehicle was not diagnosed or repaired by the dealer. The manufacturer was not made aware of the failure. The approximate failure mileage was 146,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691734October 6, 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
Injuries:
0
Deaths:
0
#11691264October 3, 2025
ENGINE, ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
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
Injuries:
0
Deaths:
0
#11690770October 1, 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
Injuries:
0
Deaths:
0
#11689841September 26, 2025
ENGINE, POWER TRAIN
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
Injuries:
0
Deaths:
0
#11689640September 25, 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
Injuries:
0
Deaths:
0
#11689797September 25, 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
Injuries:
0
Deaths:
0
#11689355September 24, 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
Injuries:
0
Deaths:
0
#11689125September 23, 2025
POWER TRAIN
Transmission shuddering and vibration
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688823September 22, 2025
ENGINE
Coolant control valve manufacturer defect, 3.0 duramax LM2
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688923September 22, 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
Injuries:
0
Deaths:
0
#11688972September 22, 2025
ELECTRICAL SYSTEM, LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK
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
Injuries:
0
Deaths:
0
#11688293September 19, 2025
ELECTRICAL SYSTEM, POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688418September 19, 2025
UNKNOWN OR OTHER
Unable to remove key from ignition for a period of time ie. 30 sec. to a minute or more. After driving the vehicle for a either a long or short period of time and you park it, you can't turn the ignition lock all the way off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688184September 18, 2025
POWER TRAIN, POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688192September 18, 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
Injuries:
0
Deaths:
0
#11688216September 18, 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
Injuries:
0
Deaths:
0
#11687064September 13, 2025
TIRES:TREAD/BELT
With 33k miles on the original tires on my 2021 Chevrolet Silverado 3500HD. Driver's side rear ire self destructed going down the highway at 70mph. Was not towing at the time. LT275/65R20 126/123S E @ 80psi
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686829September 12, 2025
POWER TRAIN
No reverse in transmission and sporadic engagement and shifting in forward gears.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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