Peterbilt 579 problems
Owners have filed 55 complaints about the Peterbilt 579 with NHTSA across model years 2013 to 2026. More of them are about the transmission & drivetrain than anything else.
Every Peterbilt 579 year, graded
The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.
| Year | Grade | Complaints | Crashes | Fires | Median miles | Most reported |
|---|---|---|---|---|---|---|
| 2026 | — | 1 | 0 | 0 | — | Brakes |
| 2024 | — | 3 | 0 | 0 | — | Tires |
| 2023 | — | 3 | 0 | 0 | — | Transmission & Drivetrain |
| 2022 | — | 7 | 0 | 0 | — | Transmission & Drivetrain |
| 2021 | — | 1 | 0 | 0 | — | Electrical System |
| 2020 | — | 5 | 0 | 0 | — | Transmission & Drivetrain |
| 2019 | — | 4 | 0 | 0 | — | Steering |
| 2018 | — | 12 | 0 | 3 | — | Electrical System |
| 2017 | — | 3 | 1 | 2 | — | Brakes |
| 2016 | — | 4 | 0 | 0 | — | Transmission & Drivetrain |
| 2015 | — | 6 | 0 | 2 | 273,465 | Engine & Cooling |
| 2014 | — | 5 | 0 | 0 | — | Wheels |
| 2013 | — | 1 | 0 | 0 | — | Windows, Mirrors & Wipers |
What breaks on a Peterbilt 579
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Worst in 2022
Worst in 2018
Worst in 2018
Worst in 2018
Worst in 2024
Worst in 2015
Worst in 2018
Worst in 2015
Worst in 2013
Worst in 2014
Worst in 2015
Worst in 2020
Worst in 2020
Complaints filed over time
Every complaint about every Peterbilt 579, by the month it reached NHTSA.
Compare the Peterbilt 579
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.