Chevrolet Silverado Complaints (2020)

902 consumer complaints on file.

#11761440September 1, 2026
ENGINE
My 2020 high country with a 6.2 l is 6 months away from the recall. Driving on the interstate with my family coming out of devil's Tower lost all power!!. I just replaced my motor at 60000 miles total engine loss catastrophic bearing failure!! This is the exact sameproblem from the 2021-2024 recall on the GMC 6.2liter
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760255August 28, 2026
POWER TRAIN
The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the transmission was slipping and shifting hard. The contact associated the failure with NHTSA Campaign Number: 26V083000 (Power Train); however, the VIN was not included. The dealer was notified of the failure, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760264August 28, 2026
POWER TRAIN
Purchased used in 02/2022. Pickup started to shutter when shifting at 35-45 MPH. Took it to Turnpike Chevy who found thrust bearing in reaction carrier broken and damaged planetary gear set. They replaced the reaction carrier ASM and Reconditioned the transmission ASM. Replaced the valve body ASM. Took to John Sauder Chevy numerous times between July 19 2024 and July 7 2025 due to the shutter when shifting having returned. They tried the GM approved fix of flashing the computer to reprogram and kept saying they could not duplicate. On June 18, 2025 while towing a trailer on the highway while going highway speeds in the middle of rush hour traffic the transmission suddenly started making a shrill noise. Transmission disengaged and lost power. John Sauder Chevrolet found a broken oil pump drive and drive gears on the 10L80E transmission. GMC refused to replace the transmission and now it is out of warranty and starting shutter again when it shifts
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760322August 28, 2026
STEERING, ELECTRICAL SYSTEM
On July 22, 2026 took truck to dealership for oil change and reported getting random (trailer brake, power steering) service alarms. Was told it might be a ground strap issue and was sent on my way. After investigating, there is a GM service bulletin (#23-NA-201) on the issue but does not cover my truck. After a week of vacation, began driving truck again and alarms became more frequent, including loss of power steering and jerking of steering wheel while driving. Arranged with dealership to replace the ground strap (at my expense). By the time they could schedule, the alarms were constant and the truck had completely lost power steering. One of the power steering failures nearly resulted in an accident while turning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760384August 28, 2026
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that the infotainment center intermittently went black, and there was water leaking into the vehicle through the top and lower center of the front windshield and the rear windshield. The vehicle was taken to a dealer, where the rear windshield was replaced without a diagnostic being performed; however, the failures persisted. Additionally, the side view mirrors intermittently failed to unfold when starting the vehicle. The contact stated that while driving approximately 40 MPH, white smoke emitted from the exhaust, the vehicle hesitated, and it lost power. The Check Engine warning light illuminated, along with "Service Electronic Stability Control", "Trailer Brake System", "Steering Assist Reduced", "Service Brake Assist", and "Brake System Failure" messages, and the vehicle failed to exceed 40 MPH. The vehicle was towed to a second dealer, Arcadia Chevrolet Buick (210 S Brevard Ave, Arcadia, FL 34266), where it was diagnosed that the lifter and torque converter had failed. The lifter and torque converter were replaced, and the system was flushed. Approximately 800 miles later, the engine failed again. The vehicle was towed to an independent mechanic, who diagnosed that the torque converter and transmission had fractured. The torque converter and transmission were replaced; however, the warning lights and messages illuminated again, and the vehicle continued to hesitate when driven over 42 MPH. After being parked for a few days, the warning lights were no longer illuminated and the mirrors opened, but the engine hesitation persisted. The vehicle was not further diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 10,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760490August 28, 2026
ENGINE
Engine defect,I was driving down Claiborne ave.,and my truck just cut off while I was doing 50 mph with my daughter in the truck with me,an 18 wheeler came real close to running in the back of me,also my fuel door popped out,I brought it to West Bank gmc lagacy and got it fixed,this will be my 2nd time getting this same part fixed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760182August 27, 2026
ENGINE, POWER TRAIN, UNKNOWN OR OTHER
Vehicle: 2020 Chevrolet Silverado 1500 4x4 LT (5.3L V8 Engine) Component: Engine (Piston Rings, Lifters, and Motor Assembly) / Powertrain Component Availability: Yes, the failed components/vehicle are available for inspection upon request. What Happened and Safety Risk: While operating the vehicle on Prince Street in Clovis, NM, the engine suddenly began knocking violently without any prior warning or symptoms. Immediately following the mechanical failure, dashboard warning lights illuminated (including the Check Engine light, ABS, and Traction Control) and the vehicle dropped into "Reduced Engine Power" mode. This caused an immediate and hazardous loss of acceleration on an active roadway, forcing an emergency maneuver to navigate out of traffic and pull over safely. This sudden powertrain failure poses an unreasonable and severe safety risk to the driver and surrounding traffic. Confirmation and Inspections: The mechanical failure has been confirmed and diagnosed by Hamilton Chevy in Portales, New Mexico, and Sanders Repair Services in Portales, New Mexico. The vehicle and components have not been inspected by the manufacturer, police, or insurance representatives. There were no warning lamps, messages, or symptoms of any kind prior to the sudden failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759907August 27, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving 55 MPH, the vehicle suddenly began to shake, vibrate, and lose speed. An abnormal knocking sound was heard coming from the engine, and the check engine warning light illuminated. The vehicle was towed to the contact's residence, where the contact, a master mechanic, examined the vehicle. The contact diagnosed that the fuel management system, lifter springs, camshaft lifters, engine push rods, and rocker arms needed to be replaced. The vehicle was not repaired. The local dealer 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 experienced the same failure described in the recall. The manufacturer was not notified of the failure. The failure mileage was 11,450.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759909August 27, 2026
POWER TRAIN
The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at 55-65 MPH, a rattling sound was heard coming from the front passenger-side of the vehicle. No warning light illuminated; however, the contact noticed that the voltage levels were between 9 and 11 volts. The vehicle was taken to the dealer, where it was diagnosed that the transmission had failed and needed replacement. The vehicle was not repaired. The manufacturer was notified of the failure and filed a case. The failure mileage was approximately 79,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759931August 27, 2026
LATCHES/LOCKS/LINKAGES
The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the tailgate independently opened. The contact associated the failure with NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages); however, the VIN was not included in the recall. The dealer was contacted, but the vehicle was not diagnosed or repaired because the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was approximately 118,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759611August 26, 2026
ENGINE
My lifter failed in my Chevy Silverado 1500 on the highway, causing severe shaking while driving and an array of dash lights. After taking it to a local. Chevy dealer, they confirmed a lifter collapse and possible damage to my cam shaft. I have been up to date on all oil changes with premium synthetic oil, and there were no prior dash lights indicating a problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759742August 26, 2026
SERVICE BRAKES, ELECTRICAL SYSTEM
I went to the store and my brakes were working as normal. When I started my truck to leave I had a hard pedal and there we several warnings on the dash. One said to get service and the other said to limit speed to 43 MPH. I had almost no braking power. Fortunately, I was close to home and the speed limit was 30 MPH all the way home. Once I arrived home I cleared the code with my ODBII scanner and the brakes worked as expected. If I was towing my boat this could have been a bad situation resulting in an accident. I haven't had the same issue in several days however this has to be a huge liability for GM. I'm sure that this is a known failure mode for GM.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759132August 24, 2026
STRUCTURE:BODY
Paint delaminating from front fenders. No outside influence to cause it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759165August 24, 2026
ENGINE
Lifters are failing. Engine is making horrible engine noise. Mechanics said it was lifters.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11758710August 22, 2026
UNKNOWN OR OTHER
Transmission will not shift into high gears throws engine code
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11758608August 21, 2026
POWER TRAIN
Transmission shudder/rumble strip vibration when accelerating
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11758665August 21, 2026
ENGINE
Engine failure from bearings and lower rod from lifters. This is the second engine failure in vehicle for the same exact reason per dealership report. Entire engine replacement both times and all lights on dash were on.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11758220August 20, 2026
POWER TRAIN
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11758051August 19, 2026
ELECTRICAL SYSTEM, ENGINE, UNKNOWN OR OTHER
The wiring harness failed causing erratic and unpredictable behavior at 65 MPH on this 2020 Chevrolet Silverado 1500 with 77,500 miles on the odometer. General Motors no longer makes the wiring harness and there are none available in the market. This otherwise flawless truck (for which I paid $40,000 at a reseller in 2024) is essentially now totaled (undrivable) and GM will not take any responsibility or provide any other remedy beside $750 toward the purchase of a brand new truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11758115August 19, 2026
WHEELS, POWER TRAIN, FUEL/PROPULSION SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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