2020 Chevrolet Silverado 1500 Complaints

ELECTRICAL SYSTEM,SERVICE BRAKES — Filed 06/18/2026

The Electronic Parking Brake System on my 2020 Chevy Silverado 1500 continuously malfunctions. Chevy/ GM Customer Support has been made aware of this issue and continues to disregard it entirely. The Electronic Parking Brake, which is an automatic function that cannot be turned off or bypassed, fails to fully disengage when the vehicle is taken out of Park. The Electronic Parking Brake remains very slightly engaged, producing a slight noise while driving and causing excessively premature wear on the vehicles pads and rotors. My vehicle has about 64,000 miles on it, and I have had to replace my rear brakes twice now already, due to this issue. The majority of those 64,000 miles are from uninterrupted highway driving. Each time the rear brakes were replaced, I had the dealership inspect the braking system. The dealership was not able to definitively confirm for some reason but was able to speculate that the aforementioned is likely what is going on. I find that any malfunction of such a critical part of the vehicle and the safety of it's operators and passengers poses a major safety risk.

UNKNOWN OR OTHER — Filed 11/07/2024

Key will not fully turn back and release, keeping the accessories running. After many start, shift, move a little and waiting for a period of time it eventually turns to normal to remove. I’ve seen articles on if it says “shift to park” on the dash lights and it does not. Bought used with 70,000 10/24 and continues to get worse.

POWER TRAIN — Filed 01/01/2025

While driving my transmission has a shutter. The shutter started about yr and half ago and I have just maintained with shutter stop. I know there is a recall on manufactured parts for other Chevrolet trucks in the same yr

ENGINE — Filed 09/03/2025

Dear Sir or Madam, I am submitting this complaint to request that the Federal Trade Commission investigate General Motors (Chevrolet) regarding what appears to be a known engine defect affecting the 2020 Chevrolet Silverado and the company's handling of this issue. I own a 2020 Chevrolet Silverado. In September 2025, when my truck had only 45,494 miles, I experienced an engine misfire consistent with a defect that has been widely reported by other owners. Through my research, I discovered that General Motors was aware of this issue and, rather than correcting the underlying mechanical defect, reportedly issued a Technical Service Bulletin (TSB) instructing dealerships to reprogram the Engine Control Module (ECM) to reduce or mask the symptoms instead of permanently repairing the root cause. Now, less than one year later, my truck is experiencing the same engine problems again. Although my vehicle has relatively low mileage, it is no longer covered under the factory warranty because of its age rather than its mileage. When I contacted Chevrolet Customer Assistance, I was advised to work with my local dealership to determine whether I might qualify for a "goodwill" repair. I do not believe it is fair for consumers to rely on discretionary goodwill assistance when the manufacturer was allegedly aware of a design defect before or during the time these vehicles were sold. Based on my research, properly repairing the underlying cause of this engine failure can cost as much as $15,000. Consumers should not be expected to bear the financial burden of repairing a defect that the manufacturer allegedly knew existed but failed to adequately correct. I respectfully request that the FTC investigate whether General Motors engaged in unfair or deceptive business practices by: Continuing to market and sell vehicles with a known engine defect. Addressing customer complaints with software reprogramming rather than permanently correcting the underlying mechanical issue. Failing

ENGINE — Filed 03/12/2026

While driving my 2020 Chevrolet Silverado 1500 equipped with the 5.3L V8 engine and Dynamic Fuel Management (DFM), the engine developed an internal valvetrain failure resulting in misfires, rough running, and reduced engine performance. The vehicle was diagnosed by a Chevrolet dealership as having failed lifters associated with the DFM system, requiring major engine repairs and replacement of internal engine components. The failure occurred at approximately 81,000 miles and resulted in the vehicle entering a reduced performance condition, creating a potential safety concern when merging, accelerating, or operating in traffic due to the inability to maintain normal vehicle speed and power. The vehicle was inspected and repaired by an authorized Chevrolet dealer. Research shows numerous similar reports from owners of GM 5.3L and 6.2L engines equipped with Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems involving lifter and valvetrain failures.

POWER TRAIN — Filed 07/03/2026

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at approximately 40 MPH, the vehicle shuddered and downshifted independently. No warning lights illuminated. Additionally, an OBD2 diagnostic scan retrieved diagnostic trouble codes: U0146, U0101, and U0100. A local dealer was contacted; however, the vehicle was not diagnosed or repaired because the VIN was not included in any recall. Additionally, the contact related the failure to NHTSA Campaign Number: 24V797000 (Power Train). The manufacturer was not made aware of the failure. The failure mileage was approximately 84,000.

ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE,ELECTRONIC STABILITY CONTROL (ESC) — Filed 06/26/2026

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving at 35 MPH, the engine started knocking, and the sound grew louder while making a turn. The Electronic Stability Control and check engine warning lights illuminated. The vehicle was taken to a local dealer, where one diagnostic trouble code was displayed, but the vehicle was not repaired. The vehicle was then taken to a second local dealer, who retrieved a code for fuel injector number eight and diagnosed that the engine needed to be replaced; however, the vehicle was not repaired. The vehicle was taken to a third dealership, Knapp Chevrolet, where it was diagnosed that the engine needed to be replaced. The vehicle remained unrepaired. The manufacturer was contacted and opened a case, but no additional assistance was provided. The failure mileage was approximately 94,000.

ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM — Filed 07/03/2026

I have a Trial Boss and it wont shut off when the key is off, KEEPS RUNNING. Did some research and it gave a couple of thing to check.

ENGINE — Filed 04/12/2026

while driving pulling a trailer with my kid in the car engine began knocking and lost power. upon investigation it was a failed lifter causing bent pushrod

ELECTRICAL SYSTEM — Filed 06/01/2026

The rear camera view is skewed resulting in inaccurate reference angles of the vehicle. When used to assist in reversing results in improper placement of vehicle and can cause collision of vehicle with objects.