Kenworth tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended.
The short version
PACCAR Incorporated reported a problem with the lighting control module software. Here is what owners need to know.
The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert to a raised position, or oscillate up and down when the signal warning lights are activated.
Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.
Take it to a dealer — they will update the VCU software, free of charge.
Affected vehicles
These model years are included in NHTSA campaign 25V-436.
| YEAR RANGE | MODEL |
|---|---|
| 2025–2026 | Kenworth L770 |
| 2025 | Kenworth T180 |
| 2025–2026 | Kenworth T280 |
| 2025–2026 | Kenworth T380 |
| 2024–2026 | Kenworth T480 |
| 2024–2026 | Kenworth T680 |
| 2024–2026 | Kenworth T880 |
| 2024–2026 | Kenworth W990 |
| 2024–2026 | Peterbilt 520 |
| 2025 | Peterbilt 535 |
| 2024–2026 | Peterbilt 536 |
| 2025–2026 | Peterbilt 537 |
| 2024–2026 | Peterbilt 548 |
| 2024–2026 | Peterbilt 567 |
| 2024–2026 | Peterbilt 579 |
| 2024–2026 | Peterbilt 589 |
What changed
Newest first. The record shows both when the recall began and what has changed since.
- Recall reported to NHTSA. LATEST
Drive one of these? Check your VIN to see if your specific vehicle is affected.
Check your VINWhat this record means
Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.
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MyAutoRecalls is not affiliated with PACCAR Incorporated or the National Highway Traffic Safety Administration.