2021 GMC Sierra 1500 Electrical System Problems
Owners have filed 75 complaints with NHTSA about electrical system problems on the 2021 GMC Sierra 1500, 13% of all complaints for this model year. Half of the reports with a mileage happened before 31,150 miles. The words owners use most often: “shift park” (8% of reports).
- 75electrical system complaints
- 31,150median miles at failure
- 0mention a crash
- 1mention an injury
- 0related recalls
- 55%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.
- Shift park: mentioned in 6 of 75 complaints (8%)
- Control valve: mentioned in 5 of 75 complaints (7%)
At what mileage do electrical system problems happen?
Based on 16 complaints that reported the odometer reading.
How serious are the reports?
Of 75 complaints, 3 a fire, 1 an injury.
GMC Sierra 1500 electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Sierra 1500 | 17 | 12% | 4,300 |
| 2025 Sierra 1500 | 25 | 21% | 25,319 |
| 2024 Sierra 1500 | 42 | 11% | 19,170 |
| 2023 Sierra 1500 | 64 | 13% | 23,250 |
| 2022 Sierra 1500 | 83 | 14% | 51,000 |
| 2021 Sierra 1500 | 75 | 13% | 31,150 |
| 2020 Sierra 1500 | 81 | 17% | 5,100 |
| 2019 Sierra 1500 | 95 | 15% | 7,997 |
| 2018 Sierra 1500 | 43 | 14% | 36,000 |
| 2017 Sierra 1500 | 54 | 15% | 53,000 |
| 2016 Sierra 1500 | 54 | 16% | 66,000 |
| 2015 Sierra 1500 | 96 | 13% | 46,000 |
| 2014 Sierra 1500 | 129 | 17% | 63,200 |
| 2013 Sierra 1500 | 6 | 5% | 55,500 |
| 2012 Sierra 1500 | 8 | 7% | 141,000 |
| 2011 Sierra 1500 | 17 | 6% | 124,000 |
| 2010 Sierra 1500 | 10 | 6% | 100,993 |
| 2009 Sierra 1500 | 20 | 9% | 65,000 |
| 2008 Sierra 1500 | 31 | 8% | 57,880 |
| 2007 Sierra 1500 | 22 | 8% | 43,000 |
| 2006 Sierra 1500 | 20 | 14% | 86,000 |
| 2005 Sierra 1500 | 67 | 38% | 70,000 |
| 2004 Sierra 1500 | 81 | 38% | 51,804 |
| 2003 Sierra 1500 | 43 | 24% | 72,151 |
| 2002 Sierra 1500 | 3 | 2% | 252,000 |
| 2001 Sierra 1500 | 7 | 5% | 62,000 |
| 2000 Sierra 1500 | 5 | 3% | 143,500 |
| 1999 Sierra 1500 | 8 | 5% | 90,000 |
| 1998 Sierra 1500 | 3 | 5% | 57,000 |
| 1997 Sierra 1500 | 2 | 2% | 191,065 |
| 1996 Sierra 1500 | 1 | 20% | 140,000 |
When owners reported it
Related recalls (0)
No safety recall lists electrical system for the 2021 GMC Sierra 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.
Received Re-Call for Engine Failure! Dealer replaced Engine Oil and Oil Cap @ 85,544 Miles. I read of the Re-call prior to the notice and I waited for it to come. After I received it and the Dealer made the changes, it made me afraid to leave town using my truck for fear of a breakdown on the…
The contact owns a 2021 GMC Sierra 1500. The contact stated that while the vehicle was parked, the battery charge indicator to zero. The vehicle lost motive power, and the vehicle was unable to exceed 30 MPH while driving. The vehicle was driven in LIMP Mode. The battery saver mode message was…
Dashboard keeps returning to aljarir type writing. We bought it with American English but won't stay in English. Monday will be 30 day and I believe the dealer is ghosting me. Y'all have any ideas how to reset the dashboard without replacing the radio??? Closest answer I was given.
Frequently asked questions
Do all 2021 GMC Sierra 1500s have electrical system problems?
No. NHTSA has 75 owner complaints about electrical system for the 2021 GMC Sierra 1500 (13% of the 587 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 GMC Sierra 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 31,150 miles: half of the reports with a mileage came before that.
What do owners say about electrical system problems on the 2021 GMC Sierra 1500?
The most frequent phrase is “shift park”, in 6 of 75 complaints, followed by “control valve” (5).
Other 2021 GMC Sierra 1500 problems
- Engine problems (316)
- Power Train problems (142)
See all 2021 GMC Sierra 1500 problems or electrical system problems across all Sierra 1500 years.