Service campaign 25PACF
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service campaign |
|---|---|
| NHTSA id | 11022490 |
| Published by NHTSA | 2025-09-03 |
| Manufacturer's number | 25PACF |
| Manufacturer's date | 2025-08-01 |
| Campaign id or software version | 25PACF |
| NHTSA component | EXTERIOR LIGHTING |
NHTSA's summary
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"
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Lighting
| KENWORTH L770 | 2024, 2025, 2026 |
|---|---|
| KENWORTH T180 | 2023, 2024, 2025 |
| KENWORTH T280 | 2023, 2024, 2025, 2026 |
| KENWORTH T380 | 2023, 2024, 2025, 2026 |
| KENWORTH T480 | 2023, 2024, 2025, 2026 |
| KENWORTH T680 | 2023, 2024, 2025, 2026 |
| KENWORTH T880 | 2023, 2024, 2025, 2026 |
| KENWORTH W990 | 2023, 2024, 2025, 2026 |
| PETERBILT 520 | 2023, 2024, 2025, 2026 |
| PETERBILT 535 | 2023, 2024, 2025 |
| PETERBILT 536 | 2023, 2024, 2025, 2026 |
| PETERBILT 537 | 2023, 2024, 2025, 2026 |
| PETERBILT 548 | 2023 |
| PETERBILT 548 | 2024, 2025, 2026 |
| PETERBILT 567 | 2023, 2024, 2025, 2026 |
| PETERBILT 579 | 2023, 2024, 2025, 2026 |
| PETERBILT 589 | 2024, 2025, 2026 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2025357 | 2025-06-26. Lights And Instruments |
|---|---|
| 25V436000 | 2025-06-26. EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE |
| 2025036 | 2025-01-29. Lights And Instruments |
| 25V041000 | 2025-01-29. EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:SWITCH; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE |
| 2022591 | 2022-10-17. Lights And Instruments |
| 2022314 | 2022-06-15. Lights And Instruments |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 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. |
| 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." |