117 complaints reported

2020 Chevrolet Silverado 1500 Engine

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
117
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Feb 2025

6.2L V8 had catastrophic failure due to lifters failing while driving at highway speeds.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jul 2024
Feb 2025

Driving at normal highway speeds, "service parking brake", "service engine", and "electronic stability control" lights illuminated on the dash with no prior warning. When attempting to accelerate, to maintain highway speed there was noticeable roughness to the engine along with a tapping sound. I slowed and made the trip back to my home under reduced power. The vehicle was towed to the dealer the following day per the dealer's service advisor instructions. Issue was diagnosed as a collapsed lifter, bent lifter rod and damaged cam lobe. Total repair cost exceeded $10,000. Internet search of this issue reports a number of drivers reporting similar issues with the Chevrolet 5.3 liter engine. If this issue had occurred in a more congested traffic area it could have caused an accident when my engine power was suddenly reduced without warning.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Oct 2025
Jan 2025

significant loss of power due to engine failure related to DDI while driving.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Nov 2024
Jan 2025

I bought this truck with 72,000 miles on it I put about 3,000 miles on it and the engine seized. I had my mechanic inspect it and he confirmed the motor is seized. There was absolutely no warning is just stopped running and left me on the side of the road

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Dec 2024
Jan 2025

Vehicle would not start, had it towed to a shop and they said the engine locked up. After tearing motor down the main bearing was scored and there were metal scratches.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Oct 2023
Jan 2025

I was driving on a wet Road with more than an inch of water on the road and all of a sudden my engine blew up I took it to the Chevrolet dealer and they told me that water got in the engine and it was my fault I feel that the engine failed and should not have

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Nov 2021
Jan 2025

Excessive Oil consumption from new and lifter failure at 116,000 miles

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jun 2025
Jan 2025

Had the top of the motor rebuilt twice, first the left side, then the right side. Then GM replaced the motor out of warranty. A year and a half later the rear main seal blew and the seal was all mushroomed and out of shape.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Mar 2025
Jan 2025

While driving down road at around 60mph 6.2L engine started to make loud knocking noise and shaking violently while loosing all power. Truck had 79,797 miles on it at the time with all oil changes and service done at GM dealership. After having GM dealership diagnose truck, it was determined to have a spun rod bearing, causing multiple other engine components to fail. Truck was not under factory warranty and was quoted $12,200 to replace. There were no warning lights or any known issues until this incident.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jun 2024
Jan 2025

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.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jan 2025
Dec 2024

Main bearing on crankshaft when out

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jan 2024
Dec 2024

I have a 3.0 LTRe Dura Max issue is if the (Timing Belt ) or actually the oil pump drive belt breaks the engine will lose power if this happens in the middle of an intersection or major highway you will loose total power

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Feb 2024
Nov 2024

Shifting problems. Transmission feels like it is going to fall out. I have taken it in several times to be fixed and my Chevy dealer can not figure it out. Problem never fixed.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jan 2022
Sep 2024

I'm beginning to have similar problems with the 6.2 ecotec3 engine that gm has known problems and hasn't recalled them. Dealer indicates metal shavings from the main motor bearings. Just like others I will experience a total motor failure at anytime. This will be catastrophic if motor fails and shuts down. I fear I will be rear-ended or not be able to get out of harms way. This has happened to many with the same motor. Why would there not be a safety recall on a known safety issue. Others affected have been injured even killed because there vehicle just stopped in the middle of a roadway. I currently fear for my families safety and cannot simply opt out of a vehicle with only 18,000 and thousands invested. Instead it sits waiting for the right thing to be done. To be repaired to safely use. Thank you kindly.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Sep 2024
Jul 2024

Vehicle is burning oil. I drove 300 miles and had a low oil message pop up. Vehicle still had 50% oil life left.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Mar 2024
Jul 2024

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving approximately 35 MPH, there was an abnormal sound from the engine compartment. The contact stated that the check engine warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the serpentine belt needed to be replaced. The vehicle was repaired. The contact stated that the failure recurred, and the vehicle was taken back to the same dealer and was repaired. The contact was concerned that the serpentine belt had failed twice. The manufacturer was informed of the failure. The failure mileage was approximately 3,500.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jul 2020
May 2024

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving 50 MPH, the vehicle started shuddering, made an abnormal clunking sound, and lost motive power. The check engine warning light was illuminated. The contact was able to pull to the side of the road. The contact was able to restart the vehicle and drove to the nearest independent mechanic, where it was diagnosed that the engine had experienced an internal failure. The mechanic determined that the crankshaft, the lifters, an unknown valve, and other unknown parts needed to be replaced. The vehicle was repaired. The dealer was not notified of the failure. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 79,000.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: May 2024
Mar 2024

My vehicle only has 20k miles on it and I’m already replacing a lifter and camshaft due to the active fuel management system. At the time of taking my truck in there are three other trucks for the same issue. This is known issue at my dealership and this time I’m covered under warranty, but they told me to be prepared to repair this again and next time will be out of warranty and around 5k to repair.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Mar 2024
Mar 2024

PIP5921 Bulletin.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: May 2024
Feb 2024

Notice the engine temp was rising, had notice I was slowly losing coolant in my overflow tank. Then while driving it started making noise that the engine overheated need to idle vehicle then as I pulled to a stop light the rims bogged down the whole vehicle shut down The radiator has a small leak in the plastic reservoir on the driver's side of radiator. Could have cause a big problem if I was in traffic when it shut down cause I had no control to turn the wheel or anything else once that happened.The vehicle got extremely hot very fast.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Feb 2024
Nov 2023

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the check engine warning light and brake warning light had illuminated, and the message “Engine Powering down Mode” was activated causing the vehicle to shut off. The vehicle was towed to the local dealer who was unable to determine the cause of the failure. The contact stated that the failure had occurred on several occasions and the throttle body, Oxygen sensors were replaced along with an engine programming update was performed but the failure continued to occur. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 77,154.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jan 2021
Sep 2023

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the emission system warning light and the throttle control warning light were illuminated. Additionally, the contact stated that the vehicle shuddered while being started. The vehicle was taken to the dealer, who replaced the spark plugs and made several other unknown repairs. The dealer also informed the contact that the engine needed to be replaced. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jul 2023
Aug 2023

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that the engine misfired and the vehicle stalled while driving at various speeds. Upon inspection, the contact discovered that the engine springs and rocker arms were bent. The contact replaced the lifters due to the failure. The manufacturer and the dealer were notified of the failure but offered no assistance. The vehicle was repaired. The failure mileage was approximately 65,000.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jan 2023
Jun 2023

Lifters are failing. This is an ongoing problem with GM engines. They used faulty parts and engines are failing and nothing is being done about it.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jun 2023
Jun 2023

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving 65-70 MPH, the engine started shuddering. The message "Reduced Power" was displayed, and the check engine warning light was illuminated. The contact stated that the vehicle lost motive power and failed to restart. The contact pushed the vehicle to the side of the road with assistance. The contact was able to restart the vehicle after a while. The vehicle was taken to the dealer, where it was diagnosed that the camshaft intake actuator screws had detached, and the engine and turbocharger needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was filed. The failure mileage was approximately 77,200.

Type: Vehicle, Vehicle: 2020 CHEVROLET SILVERADO 1500, Manufacturer: General Motors, LLC
Incident: Jun 2023

Trend Over Time

Complaints by year

Quick Summary

The 2020 Chevrolet Silverado 1500 has 117 Engine complaints on file. Review the timeline above for detailed owner experiences.