2021 Chevrolet Silverado 1500 Electrical System Problems

Source: NHTSA · Updated Oct 15, 2026 · 113 complaints analyzed

Owners have filed 113 complaints with NHTSA about electrical system problems on the 2021 Chevrolet Silverado 1500, 13% of all complaints for this model year. Half of the reports with a mileage happened before 7,500 miles. The words owners use most often: “service esc” (8% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Service ESC: mentioned in 9 of 113 complaints (8%)
  • Engine power: mentioned in 8 of 113 complaints (7%)
  • Wiring harness: mentioned in 7 of 113 complaints (6%)

At what mileage do electrical system problems happen?

Based on 15 complaints that reported the odometer reading.

Under 10k miles8 · 53%
10k–25k miles0 · 0%
25k–50k miles1 · 7%
50k–75k miles3 · 20%
75k–100k miles0 · 0%
100k–150k miles3 · 20%
150k+ miles0 · 0%

How serious are the reports?

Of 113 complaints, 2 mention a crash, 4 a fire.

Chevrolet Silverado 1500 electrical system complaints by model year

Peak: 2014, with 341 complaints
1997: 2819971998: 231999: 252000: 2020002001: 232002: 202003: 19520032004: 2672005: 1892006: 4820062007: 812008: 912009: 4320092010: 212011: 262012: 2120122013: 102014: 3413412015: 16420152016: 1192017: 1232018: 10320182019: 1912020: 1142021: 11320212022: 1402023: 622024: 4220242025: 262026: 25

n = 2,694 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2026 Silverado 15002521%6,663
2025 Silverado 15002625%3,000
2024 Silverado 15004213%10,500
2023 Silverado 15006216%41,235
2022 Silverado 150014022%40,000
2021 Silverado 150011313%7,500
2020 Silverado 150011415%6,186
2019 Silverado 150019117%9,500
2018 Silverado 150010320%38,020
2017 Silverado 150012317%36,000
2016 Silverado 150011915%42,500
2015 Silverado 150016415%51,000
2014 Silverado 150034124%63,500
2013 Silverado 1500103%64,360
2012 Silverado 15002110%92,500
2011 Silverado 1500265%75,000
2010 Silverado 1500216%54,500
2009 Silverado 15004310%72,000
2008 Silverado 15009110%70,000
2007 Silverado 15008110%70,000
2006 Silverado 15004813%66,687
2005 Silverado 150018936%65,000
2004 Silverado 150026734%65,033
2003 Silverado 150019524%79,000
2002 Silverado 1500204%99,000
2001 Silverado 1500235%53,000
2000 Silverado 1500203%116,847
1999 Silverado 1500254%101,000
1998 Silverado 1500236%106,000
1997 Silverado 1500285%124,614

When owners reported it

Peak: 2026, with 30 complaints
2020: 2202022021: 122021122022: 4202242023: 102023102024: 262024262025: 292025292026: 30202630

n = 113 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists electrical system for the 2021 Chevrolet Silverado 1500. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

While driving approximately 30–40 mph through an uphill left-hand curve, the steering suddenly became extremely stiff and very difficult to turn. I do not recall seeing any warning before I noticed the steering becoming stiff. While trying to control the vehicle, I noticed “Service Power…

Received Oct 12, 2026 · NHTSA complaint 11770545

2021 silverado engine failure. Yes it was inspected by a dealership and my extended warranty company and serviced by the dealership. Back on August 5th I experienced a misfire cylinder 3 and felt loss of power. On August 7th the dealership diagnosed both camshafts, 1 lifter, 1 valve, and 1 fuel…

Received Sep 17, 2026 · NHTSA complaint 11764947

My 2021 Chevrolet Silverado 1500 RST with the 6.2L engine experienced an engine seizure. The engine was replaced by a Chevrolet dealership under a GM safety recall. Immediately after picking up the vehicle following the recall engine replacement, the truck stalled while still in the Chevrolet…

Received Sep 9, 2026 · NHTSA complaint 11763216

Frequently asked questions

Do all 2021 Chevrolet Silverado 1500s have electrical system problems?

No. NHTSA has 113 owner complaints about electrical system for the 2021 Chevrolet Silverado 1500 (13% of the 844 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2021 Chevrolet Silverado 1500 electrical system?

No recall currently lists electrical system for this vehicle.

At what mileage do electrical system problems start?

The median reported mileage is 7,500 miles: half of the reports with a mileage came before that.

What do owners say about electrical system problems on the 2021 Chevrolet Silverado 1500?

The most frequent phrase is “service esc”, in 9 of 113 complaints, followed by “engine power” (8).

Other 2021 Chevrolet Silverado 1500 problems

See all 2021 Chevrolet Silverado 1500 problems or electrical system problems across all Silverado 1500 years.