2020 GMC Sierra 1500 suspension problems
18 owner complaints filed with NHTSA name the suspension on the 2020 GMC Sierra 1500 — 4% of all complaints for this model year.
What owners report
“My truck transmission beed jerking off and on for over a year. One time it lose power when i was driving and could have caused an accident. I took it to the dealership and they said i new a new transmission for $12000. Something just doesn’t seem right about this! I brought a brand new truck thats…”
filed Jul 17, 2026
“My 2020 GMC Sierra Denali diesel with approximately 90,000 miles experienced two separate front suspension failures within a short period of time. The driver side tie rod and wheel hub failed first and required repair. Shortly after, the passenger side front suspension failed in a similar way and…”
filed Mar 5, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Suspension problems in other Sierra 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Sierra 1500 | 1 | 1% |
| 2025 Sierra 1500 | 1 | 1% |
| 2024 Sierra 1500 | 3 | 1% |
| 2023 Sierra 1500 | 2 | 0% |
| 2022 Sierra 1500 | 2 | 0% |
| 2021 Sierra 1500 | 8 | 2% |
| 2019 Sierra 1500 | 9 | 1% |
| 2018 Sierra 1500 | 10 | 3% |
| 2017 Sierra 1500 | 8 | 2% |
| 2016 Sierra 1500 | 15 | 4% |
| 2015 Sierra 1500 | 17 | 2% |
| 2014 Sierra 1500 | 24 | 3% |
Other reported problem areas on the 2020 GMC Sierra 1500
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.