The defect
PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536, 2024 Peterbilt 537, and 2020-2024 Kenworth T480 trucks. The timing of the trailer brake release may be delayed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
The risk
A delay in the trailer brake release can create instability to the trailer and increase the risk of a crash.
The remedy
Dealers will replace the fittings and hoses in the affected valves, free of charge. Owner letters were mailed January 15, 2024. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 23KWJ and 23PBJ.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Kenworth T280 | 2021, 2022, 2023, 2024 |
| Kenworth T380 | 2021, 2022, 2023, 2024 |
| Kenworth T480 | 2020, 2021, 2022, 2023, 2024 |
| Peterbilt 536 | 2020, 2021, 2022, 2023, 2024 |
| Peterbilt 537 | 2024 |
| Peterbilt 548 | 2020, 2021, 2022, 2023, 2024 |
Components: SERVICE BRAKES, AIR
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Kenworth T280 | 2021 | 0 | 6 |
| Kenworth T280 | 2022 | 0 | 7 |
| Kenworth T280 | 2023 | 1 | 12 |
| Kenworth T280 | 2024 | 0 | 9 |
| Kenworth T380 | 2021 | 0 | 5 |
| Kenworth T380 | 2022 | 0 | 8 |
| Kenworth T380 | 2023 | 0 | 11 |
| Kenworth T380 | 2024 | 0 | 11 |
| Kenworth T480 | 2020 | 0 | 1 |
| Kenworth T480 | 2021 | 0 | 4 |
| Kenworth T480 | 2022 | 0 | 7 |
| Kenworth T480 | 2023 | 0 | 12 |
| Kenworth T480 | 2024 | 0 | 13 |
| Peterbilt 536 | 2020 | 0 | 1 |
| Peterbilt 536 | 2021 | 0 | 6 |
| Peterbilt 536 | 2022 | 0 | 9 |
| Peterbilt 536 | 2023 | 0 | 10 |
| Peterbilt 536 | 2024 | 0 | 11 |
| Peterbilt 537 | 2024 | 0 | 11 |
| Peterbilt 548 | 2020 | 0 | 1 |
| Peterbilt 548 | 2021 | 0 | 5 |
| Peterbilt 548 | 2022 | 0 | 7 |
| Peterbilt 548 | 2023 | 0 | 11 |
| Peterbilt 548 | 2024 | 1 | 13 |
Other service brakes, air recalls in 2023
7 of the 894 recall campaigns reported to NHTSA in 2023 concerned the service brakes, air; PACCAR Incorporated filed 154 campaigns in all.
| 23V710000 20 Oct 2023 | Lion Electric Company |
| 23V460000 30 Jun 2023 | Stoughton Trailers, LLC |
| 23V371000 25 May 2023 | Navistar, Inc. |
| 23V370000 25 May 2023 | Navistar, Inc. |
| 23V243000 5 Apr 2023 | New Flyer of America, Inc. |
| 23V087000 15 Feb 2023 | PACCAR Incorporated |
NHTSA recalls (public domain) · all recalls of 2023