Peterbilt service campaign 25PACF
Peterbilt filed this with NHTSA as a service campaign dated Dec 23, 2025, received Sep 3, 2025, about the exterior lighting — 2 documents under this number. It names 30 model years (2023–2026). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationProcedures 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"
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 25PACF | Service bulletin | Dec 23, 2025 | 11027067 | not yet checked |
| 25PACF | Service campaign | Aug 1, 2025 | 11022490 | not yet checked |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against: 2023 Peterbilt 520; 2024 Peterbilt 520; 2025 Peterbilt 520; 2026 Peterbilt 520; 2023 Peterbilt 535; 2024 Peterbilt 535; 2025 Peterbilt 535; 2023 Peterbilt 536; 2024 Peterbilt 536; 2025 Peterbilt 536; 2026 Peterbilt 536; 2023 Peterbilt 537; 2024 Peterbilt 537; 2025 Peterbilt 537; 2026 Peterbilt 537; 2023 Peterbilt 548; 2024 Peterbilt 548; 2025 Peterbilt 548; 2026 Peterbilt 548; 2023 Peterbilt 567; 2024 Peterbilt 567; 2025 Peterbilt 567; 2026 Peterbilt 567; 2023 Peterbilt 579; 2024 Peterbilt 579; 2025 Peterbilt 579; 2026 Peterbilt 579; 2024 Peterbilt 589; 2025 Peterbilt 589; 2026 Peterbilt 589.
None of these model years has a page on this site (it covers EPA-certified cars, trucks and SUVs from 2016), so the bulletin is listed here on its own.
Common questions
Source: NHTSA, 49 CFR 579.5Is Peterbilt 25PACF a recall?
No. A service campaign is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls.
Is the 25PACF repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does 25PACF cover?
The manufacturer filed it against 30 model years: 2023 Peterbilt 520, 2024 Peterbilt 520, 2025 Peterbilt 520, 2026 Peterbilt 520, 2023 Peterbilt 535, 2024 Peterbilt 535 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.