2021 GMC Yukon XL electrical system problems
12 owner complaints filed with NHTSA name the electrical system on the 2021 GMC Yukon XL — 6% of all complaints for this model year.
What owners report
“The vehicle has experienced recurring suspension, drivability, and pulling issues associated with the 4-corner air ride leveling suspension system since early ownership. The first major incident occurred at approximately 4,600 miles when the vehicle displayed suspension warnings and would not…”
filed May 8, 2026
“When turning on the car, a message pops up on the dash and will not go away. Dashboard says “ service safety restraint system””
filed Apr 30, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Yukon XL years
| Year | Reports | Share |
|---|---|---|
| 2026 Yukon XL | 5 | 23% |
| 2025 Yukon XL | 6 | 27% |
| 2024 Yukon XL | 12 | 20% |
| 2023 Yukon XL | 33 | 17% |
| 2022 Yukon XL | 19 | 13% |
| 2020 Yukon XL | 2 | 4% |
| 2019 Yukon XL | 6 | 9% |
| 2018 Yukon XL | 4 | 8% |
| 2017 Yukon XL | 31 | 22% |
| 2016 Yukon XL | 30 | 15% |
| 2015 Yukon XL | 58 | 19% |
| 2011 Yukon XL | 2 | 4% |
Other reported problem areas on the 2021 GMC Yukon XL
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.