NHTSA recall 25V436000
A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 25V436000 |
| Manufacturer's number | 25PACF |
| Manufacturer | PACCAR Incorporated |
| Reported | 2025-06-26 |
| Owners notified | 2025-08-19 |
| Component | EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE |
| Units potentially affected | 56260 |
| Part numbers | Q21-1157 |
| Report | Quarterly report 4, for 2026 quarter 2 |
|---|---|
| Filed with NHTSA | 2026-07-28 |
| Vehicles in the campaign | 56260 |
| Reported remedied | 38498 (68%) |
| Reported unreachable | 207 |
| Reported removed | 0 |
These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 2, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. 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. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."
What can happen
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.
The remedy
Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 25PACF.
| 2025 KENWORTH L770 | Built 2024-09-16 to 2025-05-23. |
|---|---|
| 2026 KENWORTH L770 | Built 2024-09-16 to 2025-05-23. |
| 2025 KENWORTH T180 | Built 2024-10-15 to 2024-10-15. |
| 2025 KENWORTH T280 | Built from 2024-02-01. |
| 2026 KENWORTH T280 | Built to 2025-05-23. |
| 2025 KENWORTH T380 | Built from 2024-01-04. |
| 2026 KENWORTH T380 | Built to 2025-05-23. |
| 2024 KENWORTH T480 | Built from 2023-07-10. |
| 2025 KENWORTH T480 | |
| 2026 KENWORTH T480 | Built to 2025-05-23. |
| 2024 KENWORTH T680 | Built 2022-05-24 to 2025-05-23. |
| 2025 KENWORTH T680 | Built 2022-05-24 to 2025-05-23. |
| 2026 KENWORTH T680 | Built 2022-05-24 to 2025-05-23. |
| 2024 KENWORTH T880 | Built 2022-06-23 to 2025-05-23. |
| 2025 KENWORTH T880 | Built 2022-06-23 to 2025-05-23. |
| 2026 KENWORTH T880 | Built 2022-06-23 to 2025-05-23. |
| 2024 KENWORTH W990 | Built 2023-01-11 to 2025-05-23. |
| 2025 KENWORTH W990 | Built 2023-01-11 to 2025-05-23. |
| 2026 KENWORTH W990 | Built 2023-01-11 to 2025-05-23. |
| 2024 PETERBILT 520 | Built 2022-05-30 to 2025-05-23. |
| 2025 PETERBILT 520 | Built 2022-05-30 to 2025-05-23. |
| 2026 PETERBILT 520 | Built 2022-05-30 to 2025-05-23. |
| 2025 PETERBILT 535 | Built 2024-11-13 to 2024-11-13. |
| 2024 PETERBILT 536 | Built from 2023-04-13. |
| 2025 PETERBILT 536 | |
| 2026 PETERBILT 536 | Built to 2025-05-23. |
| 2025 PETERBILT 537 | Built from 2024-01-22. |
| 2026 PETERBILT 537 | Built to 2025-05-23. |
| 2024 PETERBILT 548 | Built from 2023-07-28. |
| 2025 PETERBILT 548 | |
| 2026 PETERBILT 548 | Built to 2025-05-23. |
| 2024 PETERBILT 567 | Built from 2023-04-10. |
| 2025 PETERBILT 567 | |
| 2026 PETERBILT 567 | Built to 2025-05-23. |
| 2024 PETERBILT 579 | Built 2022-05-27 to 2025-05-23. |
| 2025 PETERBILT 579 | Built 2022-05-27 to 2025-05-23. |
| 2026 PETERBILT 579 | Built 2022-05-27 to 2025-05-23. |
| 2024 PETERBILT 589 | Built from 2023-05-08. |
| 2025 PETERBILT 589 | |
| 2026 PETERBILT 589 | Built to 2025-05-23. |
A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.
Bulletins for the same vehicles and component
| 34-101 | 2026-06-03. Service bulletin. Certain Peterbilt Model 589 chassis equipped with LED headlamps may need a relay and fuses for the integrated heaters to be functional. |
|---|---|
| 34-100 | 2026-04-07. Service campaign. Halogen Headlamp Operation -Activating the Flash to Pass system on certain [Kenworth / Peterbilt] vehicles may cause one headlamp to deactivate. |
| 25PACF | 2026-01-06. Service bulletin. Parts and procedures are now available for all affected chassis equipped with Vehicle Electronic Control Unit (VECU) part number Q21-1157-013-011 / Q21-1157-013-013 / Q21-1157-002-002 / Q21-1157-004-004 / Q21-1157-006-006 / Q21-1157-009-009. See attached Parts Matrix for required parts per chassis. |
| 25KWB/25PBB | 2026-01-06. Service bulletin. A new Recommended Repair has been added. It must be used if safety recall 25PACF is performed prior to or at the same time as this repair since the 25PACF remedy also satisfies this safety recall. |
| 25PACF | 2025-09-03. Service campaign. Procedures are now available for Phase 1 chassis equipped with Internal Combustion Engines (ICE) and Vehicle Electronic Control Unit (VECU) part number Q21-1157-013-011 / Q21-1157-013-013. Parts and procedures for Phase 2 chassis will be available at a later date. This bulletin will be updated at that time. Please refer to the condition section for more details. Certain Ethernet Multiplexed Architecture (EMUX) chassis fail to conform to Federal and Canada Motor Vehicle Safety Standards (FMVSS/CMVSS) No. 108. Delayed or unsteady illumination of the vehicle’s stop lamps, reverse lamps, turn signal lamps and inadvertent change in headlamp illumination or lift axle position may" |
| 25PBB | 2025-04-04. Service bulletin. Safety Recall The Exterior Lighting Switch (ELS) in certain Model 535, 536, 537, 548, and 567 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with FMVSS/CMVSS 101 and 108. Affected chassis must have the Vehicle Soft ware updated. |
| 25KWB | 2025-04-04. Service bulletin. Safety Recall Updated software and repair procedures are now available. The Exterior Lighting Switch (ELS) in certain T180/T280/T380/T480 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with FMVSS/CMVSS 101 and 108. Affected chassis must have the Vehicle Software updated. |
| 25PBB | 2025-03-04. Other. "Safety Recall – Interim Notification The Exterior Lighting Switch (ELS) in certain Model 535, 536, 537, 548, and 567 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with US Federal Motor Vehicle Safety Standards (FMVSS) or Canadian Motor Vehicle Safety Standards (CMVSS) 101 and 108. This bulletin will be updated when software and programming procedures are available." |
| 25KWB | 2025-03-04. Other. "Safety Recall – Interim Notification The Exterior Lighting Switch (ELS) in certain T180/T280/T380/T480 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with FMVSS/CMVSS 101 and 108. This bulletin will be updated when software and programming procedures are available." |
A bulletin is the manufacturer's note to its dealers. It is not part of this recall.