2020 Chevrolet Silverado 1500 Electrical System Problems
Owners have filed 114 complaints with NHTSA about electrical system problems on the 2020 Chevrolet Silverado 1500, 15% of all complaints for this model year. Half of the reports with a mileage happened before 6,186 miles. The words owners use most often: “wiring harness” (11% of reports).
- 114electrical system complaints
- 6,186median miles at failure
- 2mention a crash
- 2mention an injury
- 1related recalls
- 41%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Wiring harness: mentioned in 12 of 114 complaints (11%)
- Service ESC: mentioned in 9 of 114 complaints (8%)
- Trailer brake: mentioned in 7 of 114 complaints (6%)
- Limp mode: mentioned in 6 of 114 complaints (5%)
At what mileage do electrical system problems happen?
Based on 36 complaints that reported the odometer reading.
How serious are the reports?
Of 114 complaints, 2 mention a crash, 8 a fire, 2 an injury.
Chevrolet Silverado 1500 electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Silverado 1500 | 25 | 21% | 6,663 |
| 2025 Silverado 1500 | 26 | 25% | 3,000 |
| 2024 Silverado 1500 | 42 | 13% | 10,500 |
| 2023 Silverado 1500 | 62 | 16% | 41,235 |
| 2022 Silverado 1500 | 140 | 22% | 40,000 |
| 2021 Silverado 1500 | 113 | 13% | 7,500 |
| 2020 Silverado 1500 | 114 | 15% | 6,186 |
| 2019 Silverado 1500 | 191 | 17% | 9,500 |
| 2018 Silverado 1500 | 103 | 20% | 38,020 |
| 2017 Silverado 1500 | 123 | 17% | 36,000 |
| 2016 Silverado 1500 | 119 | 15% | 42,500 |
| 2015 Silverado 1500 | 164 | 15% | 51,000 |
| 2014 Silverado 1500 | 341 | 24% | 63,500 |
| 2013 Silverado 1500 | 10 | 3% | 64,360 |
| 2012 Silverado 1500 | 21 | 10% | 92,500 |
| 2011 Silverado 1500 | 26 | 5% | 75,000 |
| 2010 Silverado 1500 | 21 | 6% | 54,500 |
| 2009 Silverado 1500 | 43 | 10% | 72,000 |
| 2008 Silverado 1500 | 91 | 10% | 70,000 |
| 2007 Silverado 1500 | 81 | 10% | 70,000 |
| 2006 Silverado 1500 | 48 | 13% | 66,687 |
| 2005 Silverado 1500 | 189 | 36% | 65,000 |
| 2004 Silverado 1500 | 267 | 34% | 65,033 |
| 2003 Silverado 1500 | 195 | 24% | 79,000 |
| 2002 Silverado 1500 | 20 | 4% | 99,000 |
| 2001 Silverado 1500 | 23 | 5% | 53,000 |
| 2000 Silverado 1500 | 20 | 3% | 116,847 |
| 1999 Silverado 1500 | 25 | 4% | 101,000 |
| 1998 Silverado 1500 | 23 | 6% | 106,000 |
| 1997 Silverado 1500 | 28 | 5% | 124,614 |
When owners reported it
Related recalls (1)
Electrical system:12v/24v/48v battery:cables
Problem: General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
Risk: An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.
Fix: GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192273510.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving, the vehicle was shuddering. The vehicle was taken to the dealer and was diagnosed with transmission failure. The contact was informed that the torque converter and transmission needed to be flushed. While…
While driving I lost the power steering on the vehicle. I took my truck to a chevy dealership and scheduled an appointment for the following day. I research the problem and found that there was a Customer Satisfaction Program bulletin (N252515590) issued covering this specific issue for my trucks…
rear axle locks up and transmission goes into limp mode , this happens when slow speed under acceleration, this happens almost any time in traffic , at stop light , acceleration to freeway. a safety issue, shows a p0700 code and p2729 code , engine service code light goes on , T/C and skid lights…
Frequently asked questions
Do all 2020 Chevrolet Silverado 1500s have electrical system problems?
No. NHTSA has 114 owner complaints about electrical system for the 2020 Chevrolet Silverado 1500 (15% of the 742 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 2020 Chevrolet Silverado 1500 electrical system?
Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
At what mileage do electrical system problems start?
The median reported mileage is 6,186 miles: half of the reports with a mileage came before that.
What do owners say about electrical system problems on the 2020 Chevrolet Silverado 1500?
The most frequent phrase is “wiring harness”, in 12 of 114 complaints, followed by “service esc” (9).
Other 2020 Chevrolet Silverado 1500 problems
- Engine problems (249)
- Power Train problems (232)
- Service Brakes problems (102)
- Steering problems (74)
See all 2020 Chevrolet Silverado 1500 problems or electrical system problems across all Silverado 1500 years.