2020 Chevrolet Silverado 2500 Electrical system Problems
- Complaints
- 18about this part
- Share
- 17%of 109 total for the year
- Median mileage
- 7,528miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 18 complaints about the electrical system of the 2020 Chevrolet Silverado 2500, 17% of the 109 complaints for this model year. Where a mileage was given, the median is 7,528 miles. 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Three days after purchasing my 2020 chevy 2500 silverado, on september 28th, 2020 around 1253 I tried to start my truck and it wouldn't start. The truck turned over but seemed like it wasn't getting fuel. I then received a diagnostic alert. After changing the relay the truck ran fine. I then scheduled to take it in to the dealer on october 5,2020 to have a diagnostic done on the truck and they found nothing. The very next day it did the same thing on october 6th, 2020. …”
NHTSA complaint #11366110, filed 2020-10, 328 miles“Truck started making very strange noise,, came home let truck sit, went to restart and engine light came on, truck made very horrible sound, and started spitting oil out of the side of the block. Hole in block and at least one piston destroyed.”
NHTSA complaint #11318639, filed 2020-03, 7,528 miles“Vehicle has several electrical / computer problems including but not limited too. Electric parking brake applies itself at certain times. Hill start assist also applies itself at times both on level ground. Excessive pressure needed to stop vehicle coming down expressway ramp with diesel exhaust brake on and no trailer attached. Brakes smell hot after stopping. Vehicle was stopped with electric brake problem & hill start assist. Brake smell was after vehicle was stopped from driving approx. 25 miles. Excessive brake pressure was needed to stop vehicle on grade with diesel exhaust brake on. …”
NHTSA complaint #11363162, filed 2020-10, 1,554 miles“This vehicle does not recognize that the gear is on park. Due to the issue, it has left me stranded twice. The first time it was at a very remote area up in the mountains. I was stuck for hours due to battery dying. The second time being a very dangerous situation Because it was a very dangerous area late at night.”
NHTSA complaint #11723754, filed 2026-03“Trailer brakes keep disconnecting and connecting . Warning pops up on dash to check trailer connections. I may not happen for a hundred miles or does it 10 or 12 times in just a few miles.I've seen several complaints from on line reports but no solutions from GM yet. Very frustrating when trying to pull a trailer.”
NHTSA complaint #11773551, filed 2026-10Related service bulletins
- 11024486May 16, 2025This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
- 11019017Apr 10, 2025This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017255Mar 25, 2025This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent Failures, Noise Concerns, Driveline/Steering…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014579Feb 19, 2025This technical bulletin provides repair information to correct a customer concern of Diagnostic Tips For Park Assist Off Message / Unwanted Or False Park Assist Alerts / No DTCs.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014239Jan 29, 2025This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 3 | 23% |
| 2025 | 8 | 27% |
| 2024 | 55 | 38% |
| 2023 | 16 | 34% |
| 2022 | 29 | 30% |
| 2021 | 17 | 19% |
| 2020 | 18 | 17% |
| 2019 | 19 | 26% |
| 2018 | 13 | 25% |
| 2017 | 15 | 28% |
| 2016 | 18 | 15% |
| 2015 | 58 | 32% |
| 2014 | 6 | 15% |
| 2013 | 10 | 20% |
| 2012 | 11 | 21% |
| 2011 | 9 | 9% |
| 2010 | 2 | 10% |
| 2009 | 9 | 15% |
| 2008 | 23 | 12% |
| 2007 | 11 | 5% |
| 2006 | 14 | 8% |
| 2005 | 98 | 36% |
| 2004 | 105 | 29% |
| 2003 | 86 | 19% |
| 2002 | 10 | 3% |
| 2001 | 26 | 7% |
| 2000 | 5 | 4% |
| 1999 | 4 | 5% |
| 1998 | 5 | 7% |
| 1997 | 2 | 3% |
Other parts of the 2020 Chevrolet Silverado 2500
33 complaintsBrakes
20 complaintsFuel system
11 complaintsEngine
10 complaintsOther or unknown
10 complaintsTires
10 complaintsSteering
9 complaintsBody and structure
6 complaintsEngine cooling
4 complaintsVehicle speed control
4 complaintsExterior lighting
2 complaintsLatches, locks and linkages
2 complaints
← All problems reported for the 2020 Chevrolet Silverado 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology