general problems of the 2020 Chevrolet Silverado 1500 - part 2

86 problems related to electrical system have been reported for the 2020 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Chevrolet Silverado 1500 based on all problems reported for the 2020 Silverado 1500.

36 Electrical System problem

Failure Date: 05/03/2024

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at approximately 70 mph, the “esc unavailable”, 'abs failure', and “do not drive over 62 mph”, “please drive with care” messages were displayed. The contact stated that when the brake pedal was depressed, the brake pedal remained on the floorboard. The contact stated that the braking distance was extended. The vehicle was taken to a dealer, but the failure was not duplicated. The manufacturer was notified of the failure. The failure mileage was 67,699.

37 Electrical System problem

Failure Date: 03/30/2024

A/c blower motor over heated and caught the electrical wires on fire under the dash. I had just left my house for work about 1 mile from home and the dash started smoking then a fire started under the passenger side glovebox parked the car in the middle of the street and I was able to exit the vehicle and put the fire out with a half bottle of water I had in the car. I then called 911 and I believe it was east pierce fire department. They shortly arrived and confirmed it was an electrical fire and that there was no more heat coming from it. The fire department then gave me a ride home. The vehicle has been towed to sunset Chevrolet in sumner washington where the vehicle was purchased new in 2020.

38 Electrical System problem

Failure Date: 02/20/2024

When you try and start the truck, the instrument panel lights up fully but when you push to start the instrument panel dims and acts like the battery is dead and won’t crank. The engine light is on. After a few presses, it finally cranks and starts fully. Has happened repeatedly and randomly.

39 Electrical System problem

Failure Date: 02/15/2024

Brake system failure reported on screen. Extremely hard to stop vehicle.

40 Electrical System problem

Failure Date: 02/09/2024

The trucks installed trailer wiring can cause a traffic accident. The wiring harness is known to have electrical issues but is not being corrected under warranty. It is difficult to know of these issues until you hook up a trailer or camper. The trailer's brake light and turn signal are affected by the faulty wiring. The dealer narrowed the problem to being between the plug and fuse. Other people have voiced their concerns with the trailer wiring.

41 Electrical System problem

Failure Date: 01/21/2024

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving at undisclosed speeds, the instrument cluster became inoperable and failed to provide correct information. The contact stated that the alternator cable was loose and intermittently failed to operate as designed. There were no warning lights illuminated. The contact called the local dealer and was informed there were no open recalls on the VIN. The vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA hotline. The contact stated that the failure was related to the NHTSA campaign number: 19v888000 (electrical system). The failure mileage was approximately 19,000.

42 Electrical System problem

Failure Date: 12/20/2023

Check engine light came on. Authorized dealer advisor stated "vehicle may shut-off or not start. " took to authorized dealer. Dealer found evap system error code p0499. Dealer replaced evap valve harness connector. Approximately 48hrs check engine light came on again. Will schedule service with authorized dealer.

43 Electrical System problem

Failure Date: 09/14/2023

Loss of power steering, on 2 occasions. Started the vehicle and got a caution notice saying drive with care power steering disabled. Sure enough no power steering. Stopped vehicle waited, re-started vehicle, problem persisted. Made other transportation arrangement plans, restarted vehicle after a bit a problem seem to be gone. Stored codes we're 121, 131, and 140. Bcm communication loss, power brake communication loss and steering control communication failure.

44 Electrical System problem

Failure Date: 06/26/2023

Already paid for transmission repair and now paying for engine wiring harness. Service update was sent out to dealer in may of 2020 to fix issues before selling vehicle. That was not done.

45 Electrical System problem

Failure Date: 05/30/2023

Dash gauge cluster - all gauges drop to "zero" while driving speed, oil pressure, engine temp, fuel, etc. , a/c compressor stops working but blower still works.

46 Electrical System problem

Failure Date: 05/27/2023

2020 Silverado 1500 ltz, turn signals on mirror do not work.

47 Electrical System problem

Failure Date: 05/20/2023

Electrical acutated tailgate will not come down. The truck came with a soft bed cover that locks. If my child was to hide in the bed somehow it would pose an immediate risk to life and health as the tailgate will not come down and does not have any type of manual override. The interior controls do not work to lower the tailgate, the key fob controls do not work to lower the tailgate.

48 Electrical System problem

Failure Date: 04/01/2023

Vehicle is at 67,xxx miles. Vehicle is losing power, check engine light, service 4wd, service esc, service power steering, service parking brake. . . . . The gas pedal has locked on me already with my 3 small children in the truck at highway speeds. Gm says it's fine. I have all the work orders where 2 different dealerships have "corrected" these issues under warranty. Go retrieve the vehicle and within a week vehicle is back acting up. This truck is unsafe to drive on the roadway. I have not been offered a courtesy vehicle to drive while "warranty" work is being done. I am appalled and in fear for my children and my own life with this truck.

49 Electrical System problem

Failure Date: 03/01/2023

Vehicle will send message to message center to shift vehicle in to park when it is already in park. Have to trick vehicle system to make it beleive it is in park to totally shut down vehicle.

50 Electrical System problem

Failure Date: 02/26/2023

Power steering failure upon starting truck. Wheel did not turn. Dash message said esc and power steering malfunction . Restart car multiple times with same issue. Wait a few hours and start car - no warnings or power steering issues. Went to Chevrolet dealership and was told no codes had been triggered and to bring back when issue arises again.

51 Electrical System problem

Failure Date: 11/14/2022

I keep getting battery saver activated. I go to start my truck and it will not start. On dash says battery saver activated. I have had in the dealer 4 times and it keep happening. I also have had the power steering go out while driving. This has only happened once and after a couple hours it started working again but seems very dangerous.

52 Electrical System problem

Failure Date: 10/08/2022

Vehicle exhibited sudden loss of power at highway speed while in west texas. Without warning, the vehicle displayed an "engine power reduced" message and the vehicle immediately slowed from highway speed to a maximum speed of 25mph. This sudden reduction in power required the drive to take emergency action to leave lanes of travel for the shoulder. On a road with insufficient shoulder-area, this could have resulted in a collision. Prior to the loss of power, a check engine light illuminated followed by a "service emissions system soon" warning on the driver information display. The elapsed time between the messages and the loss of power was less than 5 minutes. The vehicle did not exhibit any erratic behavior at the time of the warning lights or prior to the loss of power. The vehicle is currently at bill estes Ford in indianapolis, in. Diagnosis is underway. Indications are that this is related to issues with the emissions control system. The vehicle was up to date on all service at the time of the incident.

53 Electrical System problem

Failure Date: 10/02/2022

Truck mileage approx 26000 miles. 2 wiring harness locations rubbed wires enough to cause wire to wire contact resulting in 1 location, burnt wires, according to service tech and the other resulted in truck malfunction. Threw numerous codes, transmission repeatedly went p, d, p, d. . . . Unable to put in park for sometime and then finally was able to. Additionally, when serviced out of state, was recommended to have service done for leaky oil pan. Upon returning to home state, truck went in for oil leak, was returned due to parts ordered because it's leaking at the rear main seal and not the oil pan. Waiting on this service to occur.

54 Electrical System problem

Failure Date: 09/23/2022

Locks will go up and down by themselves tranmission will downshift randomly broke down on highway service light service esc service parking brake and traction control vehicle only has 32,500 miles been complaining nothing getting done just want something else.

55 Electrical System problem

Failure Date: 09/19/2022

Purchased the truck through carmax and two weeks later received the “service brake assist” and “brake system failure” message on the console. This has happened twice in in one month.

56 Electrical System problem

Failure Date: 07/06/2022

As I was backing out of a parking spot in a lot my vehicle lost it's power steering. I got an service esc error code, a wrench indicator, and a service power steering/drive with care warning. I also got a diagnostic alert from on star. Diagnostic alert: service antilock breaking system in your 2020 silveragod pithing the next 7 days. I was unable to move steering wheel, and could only pull my vehicle forward. So it was stuck sideways in the parking lot for about 20 minutes. My car did restart again and the code cleared. I was able to drive it to the dealer. They ran diagnostics but were unable to duplicate the concern. They did find a history of 1 fault where several modules (ecm, ebcm, tcm, tccm) had lost communication with the power steering control module. They also looked at data com schematic doc 5257308 and found modules before connector x182 had lost communication. My safety was a risk in this situation because I was stuck sideways in a parking lot with very limited ability to move my vehicle for incoming or outgoing traffic. Had this happened while I was driving the vehicle in a roadway I believe it could have caused an accident. The dealership did find that a harness was making contact with the upper control arm bolt. They re-taped the harness and secured it away from the control arm bolt and bracket. A new bracket was ordered.

57 Electrical System problem

Failure Date: 04/15/2022

Power train transmission torque converter “chevy shake” multiple symptoms. - shuttering , “ buffeting” , slipping sensation. Continuous almost like “strong wind gust” or “head wind” - humming, if you have ever heard a “high pressure” hydraulic equipment. - rpm bounces 300 to 500, but transmission does not “down shift” (while driving) - vibration, of the truck can be noticed, felt at various speeds, 40mph to 60mph(shutter) almost like it struggling to get up to speed (unless heavy on the gas pedal) 70mph and above to say 80mph, then shaking, vibrations worse when coasting back to 70 mph vibration will “not stop” until truck speed is drastically slowed or come to a stop. - steering wheel “shakes” , “vibrates” also can happen at 60mph to 70mph and above to say 80mph, then worse when coasting back to 70 mph - “clunk” when stopped and shifting into “reverse” (new development symptom) vehicle is in for inspection. It keeps reading service break system. Service esc.

58 Electrical System problem

Failure Date: 01/22/2022

The infotainment screen brightness is set too high, such that turning the brightness setting down enough for the infotainment screen to not be too bright turns the backlighting on the instrument cluster down to where it's almost unreadable. In this specific case I was trying to use apple maps through carplay for navigation in an unfamiliar rural area, where lighting on the roads is almost inexistent besides in towns. During the day it's not too much of an issue, but any time between dusk and dawn one must make a choice between visibility out the windshield and being able to quickly read anything on the instrument cluster. It is my opinion that this issue is enough of a safety hazard to force gm to make changes, but unfortunately isn't the most egregious "feature" of this screen. That title belongs to what happens when you put the vehicle in reverse at night. It seems whoever designed it thought the view of the backup camera on the infotainment screen is the only thing you should be able to see, since it changes the brightness back to its daytime setting. This makes seeing out of the vehicle in any direction where the screen is even slightly in your view almost impossible. It also means you must wait a second or two for your eyes to adjust if you want to, for example, look at the backup camera on the screen then look out the rear window. In my case, even looking out the rear window into a garage with a light on was difficult after looking at the backup camera view. Add to all of this any kind of vision issues like needing prescription glasses or contacts, and your eyes are constantly trying to adjust between being able to see what your next turn might be and being able to read any signage that may be present. Simply put, it seems gm took the idea of making the vehicle a rolling Smart device to be the primary use, even above having the ability to see where you're going safely.

59 Electrical System problem

Failure Date: 11/28/2021

I started my truck up and the dashboard warned me with service esc and also service power steering drive with care. Steering wheel was very hard to turn obviously no matter what way. I only got like 14,169 miles on the truck. I left it sitting for about 2 hrs. And it's supposedly back to normal. No lights some how.

60 Electrical System problem

Failure Date: 07/05/2021

- my back up camera developed a fish eye distortion. - it makes it hard to see how close something is behind you, making it dangerous backing up with children in the area. - yes, although the dealer is trying to claim it is ''normal'', even though it was not that way when I bought the truck, or I would not have purchased it. - there were no warning lamps or other symptoms prior to the problem. It appeared before 2,500 miles were on my vehicle.

61 Electrical System problem

Failure Date: 06/20/2021

Momentary loss of electrical power going over bumps, stabilitrak warning then complete loss of cabin power, engine power and power steering. Corrects after approx 1 sec.

62 Electrical System problem

Failure Date: 06/19/2021

While driving all warnings lights came on and all gage needles started moving back and forth.

63 Electrical System problem

Failure Date: 05/27/2021

At least 3 times while driving the entire radio and information system has shut down while driving and completely gone black for 2-3 minutes and reset to factory reset this does not show as recall but worried that it may shut down vehicle completely have told dealership during routine maintenance and they said they find no problem obviously there is a reason this is happening.

64 Electrical System problem

Failure Date: 05/16/2021

I was leaving work on may 17th and got in my 2020 silverado and started the vehicle. Immediately codes were thrown on the dash stating that the power steering was out and that the esc system needed serviced. The traction control system/esc light was also illuminated on the dash. I was unable to turn the steering wheel whatsoever. I turned the vehicle off and restarted approximately three times all of which still were displaying the codes listed above. I let the truck sit for approximately 20 minutes and the codes had cleared themselves and the vehicle was functioning as it should. I immediately drove to the dealership and had it serviced. Dealership stated there was a programming issue related to the ebcm, which if I'm not mistaken was a recall already issued for the 2019 models. I have seen many instances online of this same issue occurring and sometimes impacting the ability to brake (if vehicle was in motion at time of onset). My onset occurred at approximately 14,000 miles while in park. Since the servicing (approximately 1 week) issue has not been replicated, but I am not sure if the problem has been fixed or if the computer is just functioning properly and will glitch again at some point in the future.

65 Electrical System problem

Failure Date: 04/05/2021

The engine light has come on 3 times with a truck with only 9000 miles on it I took it to the dealership who gave me a code of p12a6 they told me Chevrolet is aware of this problem but has not come up with solution yet or even wrote a program to reflash the computer. Now I have a paper weight in my driveway and being that I live in a dual town trying to find a dealership that will fix it and provide rental car or truck. This defect can be multiple reasons with the engine harness wires chaffing or torque converter or transmission plus the whole electrical system not cranking over the truck from what I was told last time. Now I'm waiting till 730 to call a dealership see if they have a roll truck to pick it up and get it to a dealership where they can try to fix this problem.

66 Electrical System problem

Failure Date: 03/27/2021

This truck has 2700 miles on it. Got in to drive it home from the store today and the service engine light is on. Says stabilitrak error and antilock brake error. Brake pedal felt strange so I was afraid to drive it after reading similar stories about trucks veering or not braking when the pedal is depressed. Called dealer to schedule service. This truck hasn't even had its first oil change yet and already having electrical problems.

67 Electrical System problem

Failure Date: 03/20/2021

Battery keeps discharging. Making sure no lights left on in vehicle. Totally drained battery in just 3-4 days without cranking or moving. After recharge cranked normally.

68 Electrical System problem

Failure Date: 03/09/2021

This truck doesn't even have 7500 miles on it. It was driven to work this morning without issue and parked for approximately four hours. Upon attempting to start it for lunch hour three messages showed up in the dic: 1) �service esc�, 2) �service power steering�, and 3) �park assist off�. In an attempt to evaluate I pulled the truck forward and the available steering reflected an inoperable power steering system. I backed into the spot again and shut the truck down. I started the truck and shut it down four or five more times with the same messages presented (although park assist stopped appearing) and only on the last time did the messages go away and power steering returned.

69 Electrical System problem

Failure Date: 03/03/2021

Infotainment system randomly shuts down completely(screen turns off along with all audio and connected devices). Also the usb port refuses to connect and/or randomly disconnects items attached to it. This happens while the vehicle is stopped or in motion. It has done it on the highways, freeways, interstates, city streets, country roads, dirt trails, my works private property, everywhere in short. Happens on hot summer days and cold winter nights. Its 100% random. Chevy knows of the issue but has refused to fix for more than a year now.

70 Electrical System problem

Failure Date: 02/03/2021

My wife got into an accident where she rear ended Ford fiesta and hit it so hard that vehicle pushed a 2006 Dodge full size pickup 100 feet down the street and the airbags didn't deploy.



Silverado 1500 Service Bulletins
Silverado 1500 Safety Recalls
Silverado 1500 Defect Investigations