GMC Sierra 1500 electrical system problems by year
1,166 NHTSA owner complaints name the electrical system across 30 Sierra 1500 model years. The most reported year is 2014 with 128 reports.
| Year | Electrical System reports | Share | Median mileage | |
|---|---|---|---|---|
| 2026 Sierra 1500 | 8 | 12% | — | |
| 2025 Sierra 1500 | 21 | 23% | — | |
| 2024 Sierra 1500 | 39 | 12% | — | |
| 2023 Sierra 1500 | 55 | 13% | — | |
| 2022 Sierra 1500 | 79 | 15% | — | |
| 2021 Sierra 1500 | 71 | 13% | 31,150 mi | |
| 2020 Sierra 1500 | 77 | 17% | 9,650 mi | |
| 2019 Sierra 1500 | 94 | 15% | 8,350 mi | |
| 2018 Sierra 1500 | 42 | 14% | — | |
| 2017 Sierra 1500 | 54 | 15% | 53,000 mi | |
| 2016 Sierra 1500 | 54 | 16% | 68,500 mi | |
| 2015 Sierra 1500 | 93 | 13% | 55,500 mi | |
| 2014 Sierra 1500 | 128 | 17% | 64,677 mi | |
| 2013 Sierra 1500 | 6 | 5% | — | |
| 2012 Sierra 1500 | 7 | 7% | — | |
| 2011 Sierra 1500 | 16 | 6% | — | |
| 2010 Sierra 1500 | 10 | 6% | — | |
| 2009 Sierra 1500 | 20 | 9% | 65,000 mi | |
| 2008 Sierra 1500 | 31 | 8% | 57,880 mi | |
| 2007 Sierra 1500 | 22 | 8% | 54,000 mi | |
| 2006 Sierra 1500 | 20 | 14% | 86,000 mi | |
| 2005 Sierra 1500 | 67 | 38% | 70,000 mi | |
| 2004 Sierra 1500 | 81 | 38% | 54,304 mi | |
| 2003 Sierra 1500 | 43 | 24% | 72,151 mi | |
| 2002 Sierra 1500 | 3 | 2% | — | |
| 2001 Sierra 1500 | 7 | 5% | — | |
| 2000 Sierra 1500 | 5 | 3% | — | |
| 1999 Sierra 1500 | 8 | 5% | — | |
| 1998 Sierra 1500 | 3 | 5% | — | |
| 1997 Sierra 1500 | 2 | 2% | — |
Share is the fraction of that year’s complaints naming the electrical system. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.