2021 Chevrolet Silverado 1500 Electrical system Problems
- Complaints
- 113about this part
- Share
- 13%of 852 total for the year
- Median mileage
- 7,500miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 113 complaints about the electrical system of the 2021 Chevrolet Silverado 1500, 13% of the 852 complaints for this model year. Where a mileage was given, the median is 7,500 miles. 2 of these say a crash was involved and 4 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I lost control of the vehicle when the road became bumpy. The vehicle was bouncing up and down pitching from side to side. I was driving the posted speed limit. This happened on the day I bought the vehicle and I was on my way home from the dealership. At first I thought the vehicle was acting like that because it was new. Nope. It's real. The truck bounces and pitches hard every time I hit a bump in the road. I even drove back to the location where it happened on the first day that I bought it and sure enough the vehicle acted the same way. …”
NHTSA complaint #11413270, filed 2021-04, 25 miles“On thursday feb 18th is was snowing when I left work, drove around the beltway approximately 30 miles going on average 30-40 MPH.no issues just bad roads. Right after I left the highway and turned on to a main road, I was approximately 1 mile on that road in the middle lane driving straight at about 25-30 MPH when my new 2021 silverado (5000 miles) loss power. The battery and check engine light came on with no engine power. As the vehicle was coasting attempted to get off the main road, but didn't make it due to the snow covered roads and slush. …”
NHTSA complaint #11397267, filed 2021-02, 5,000 miles“Infotainment system does not work all the time. Xm radio has no sound at all, or as I am driving down the road the xm radio vulume on its own goes so low you can not hear it and then you can not turn it up or down with the volume control on the dash or the one on the steering wheel. To correct this issue one has to take thier eyes off the road and use thier phone if it is paired with the system or turn the radio to fm or am. After doing this the volume control works on xm. This has happened since I got this vehilce nov 30,2020 until now on and off.”
NHTSA complaint #11387453, filed 2021-01, 600 miles“This 2021 silverado hand a complete electical faulure leaving the vehicle dead in the in the road at night. We had no power at all, no warning flashers in the dark at 9:00 pm at night. We were almost hit by a car coming around coner as we broke down at the intersection were no street lights were. This truck has less than 500 miles on it and has already had the full engine replaced, problems with the infotanment system and now a complete electrical shutdown. We were unable to get the vehicle to do anything and waited for two hours in the road for a wreaker to arrive.”
NHTSA complaint #11385179, filed 2020-12, 500 miles“The antilock brake system (ABS), brakes, and electronic stability control system (ESC) might not illuminate. This could cause the driver to not know if any of these systems are inoperable.”
NHTSA complaint #11390737, filed 2021-01, 7,500 milesRelated service bulletins
- 11027795Jan 27, 2026Certain vehicles listed above, may have a condition in which the body-to-chassis ground strap may be corroded. Dealers will replace the ground strap.
- 11024378Sep 6, 2025This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of Steering Assist and/or Loss of Brake Assist and…
- 11023368May 17, 2025This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
- 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.
- 11017443Apr 2, 2025This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
- 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…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 28 | 22% |
| 2025 | 26 | 24% |
| 2024 | 43 | 13% |
| 2023 | 63 | 16% |
| 2022 | 140 | 21% |
| 2021 | 113 | 13% |
| 2020 | 117 | 16% |
| 2019 | 191 | 17% |
| 2018 | 104 | 20% |
| 2017 | 123 | 17% |
| 2016 | 119 | 15% |
| 2015 | 165 | 15% |
| 2014 | 341 | 24% |
| 2013 | 10 | 3% |
| 2012 | 21 | 10% |
| 2011 | 27 | 5% |
| 2010 | 21 | 6% |
| 2009 | 43 | 10% |
| 2008 | 91 | 10% |
| 2007 | 81 | 10% |
| 2006 | 48 | 13% |
| 2005 | 189 | 36% |
| 2004 | 267 | 34% |
| 2003 | 195 | 24% |
| 2002 | 20 | 4% |
| 2001 | 23 | 5% |
| 2000 | 20 | 3% |
| 1999 | 25 | 4% |
| 1998 | 23 | 6% |
| 1997 | 28 | 5% |
Other parts of the 2021 Chevrolet Silverado 1500
393 complaintsTransmission and drivetrain
242 complaintsOther or unknown
75 complaintsEngine cooling
60 complaintsBrakes
45 complaintsSteering
43 complaintsFuel system
32 complaintsBody and structure
29 complaintsAir bags
20 complaintsSuspension
18 complaintsLatches, locks and linkages
15 complaintsForward collision avoidance
10 complaints
← All problems reported for the 2021 Chevrolet Silverado 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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