AI Damage2024 Peterbilt 520: common problems
The maker issued 54 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 54
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 23 |
| Electrical system | 0 | 0 | 19 |
| Steering | 0 | 0 | 7 |
| Fuel/propulsion system | 0 | 0 | 3 |
| Engine and cooling | 0 | 0 | 2 |
| Exterior lighting | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 2 |
| Electronic stability control | 0 | 0 | 1 |
| Forward collision avoidance | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
| Other | 0 | 0 | 4 |
Comparison
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "Kenworth
Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the…
- "KW
A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 2 chassis. The total chassis count is now 4. A link to the PACCAR Powertrain…
- This optional software update is expected to be available after 08/28/2026
- Chassis list has been updated to include 10 chassis
The total chassis count is now 101.
- This optional software update is expected to be available in late August 2026 for chassis equipped with…
This optional software update is expected to be available in late August 2026 for chassis equipped with EPA 2024 EMY 2024-2026 PACCAR MX-11 and MX-13 engines. This bulletin will be updated when the software is ready…
- The verbiage in the Introduction section has been updated
- When DAVIE version 26.21.2 is used to update the VECU3 to software version 3.4.46.0, the VECU3 5071…
When DAVIE version 26.21.2 is used to update the VECU3 to software version 3.4.46.0, the VECU3 5071 component group may display as --- after programming.
- The procedure has been updated to include additional steps for verifying the software level on the vehicle…
The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (VECU2) and digital display (DD). Steps have also been added to the PACCAR Common Rail…
- This optional software update is expected to be available on 08/07/26 for chassis equipped with EPA 2024…
This optional software update is expected to be available on 08/07/26 for chassis equipped with EPA 2024 EMY 2024-2026 PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service…
- Certain unaffected chassis have been removed from the chassis population
- This optional software update is now available for chassis equipped with EMY 2021B-2023 PACCAR MX-11 and…
This optional software update is now available for chassis equipped with EMY 2021B-2023 PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service their trucks before a DEF-related…
- An optional software update is expected to be available on or after 07/31/26 for chassis equipped with EPA…
An optional software update is expected to be available on or after 07/31/26 for chassis equipped with EPA 2024 engine model year (EMY) 2024-2026 PACCAR MX-11 and MX-13 engines. This update provides customers with…
NHTSA lists 54 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2024 Peterbilt 520?
There are no owner complaints in the NHTSA data for this year; the data comes from 54 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2024 Peterbilt 520?
NHTSA lists 54 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2024 Peterbilt 520 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2024 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.