Peterbilt service campaign 98-030
What it says5/29/2025: A new Ethernet Multiplexed Architecture (EMUX) Service Tool Kit service manual (SM034-022) has been released to provide general use information. NHTSA’s full summary ↓
Peterbilt filed this with NHTSA as a service campaign dated May 31, 2025, received Oct 5, 2024, about the electrical system — 2 documents under this number. It names 18 model years (2020–2025). 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 communication5/29/2025: A new Ethernet Multiplexed Architecture (EMUX) Service Tool Kit service manual (SM034-022) has been released to provide general use information. The new EMUX Service Tool Kit improves cab & chassis electrical troubleshooting efficiency, while reducing risk of component damage. 4/29/2025: The Ethernet Multiplexed Architecture (EMUX) Service Tool Kit and individual kit components are now available to order. Dealers that have received their first kit may order an additional kit. The EMUX Service Tool Kit Part number has been updated to match OEM drawings (P74-1045-001). Individual kit component part numbers can be found in the Reference Bill of Materials sheet. The new EMUX Service Tool Kit improves cab & chassis electrical troubleshooting efficiency, while reducing risk of component damage. Information Only New diagnostic tool is required to support PACCAR Ethernet Multiplexed Architecture (EMUX). The EMUX Service Tool Kit will help improve cab & chassis electrical troubleshooting efficiency, while reducing the risk of component damage.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 98-030 | Service bulletin | May 31, 2025 | 11019172 | PDF, 2,097 KB |
| 98-030 | Service campaign | Sep 14, 2024 | 11008569 | PDF, 965 KB |
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: 2020 Peterbilt 220; 2021 Peterbilt 220; 2022 Peterbilt 220; 2023 Peterbilt 220; 2024 Peterbilt 220; 2025 Peterbilt 220; 2020 Peterbilt 520; 2021 Peterbilt 520; 2022 Peterbilt 520; 2023 Peterbilt 520; 2024 Peterbilt 520; 2025 Peterbilt 520; 2020 Peterbilt 579; 2021 Peterbilt 579; 2022 Peterbilt 579; 2023 Peterbilt 579; 2024 Peterbilt 579; 2025 Peterbilt 579.
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.
More bulletins about the electrical system
Source: same model, same component group11 other manufacturer communications filed against these Peterbilt models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Peterbilt list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| E328 | Service campaign | Oct 16, 2026 | Certain chassis with CARB 2024 compliant MX-13 engines must have the PEU wiring harnesses updated. The original wiring and fuse are insuff… |
| 46-025 | Service campaign | Sep 30, 2026 | Software updates are available for certain Peterbilt Model 220 BEVs that experience battery pack cell imbalances. |
| 26PACD | Service campaign | Sep 19, 2026 | "The PKC Group power distribution center (PDC) in certain vehicles may be contaminated with oil, which could result in a loss of power to th… |
| E324 | Service campaign | Jul 16, 2026 | "Campaign New and improved software is now required for chassis equipped with an Engine Model Year 2016 PACCAR MX-13 engine to maintain DEF… |
| 26PACB | Service campaign | Jul 2, 2026 | "(KW): Certain Kenworth K270 and K370 Battery Electric Vehicle (BEV) chassis equipped with certain DANA cradle harnesses may intermittently… |
| 25KWD 25PBD | Service campaign | Jul 2, 2026 | Additional US chassis have been added, along with additional Canadian chassis under identical safety recall 26PACB. |
| 46-022 | Service campaign | Feb 26, 2026 | Certain Model 220, K270, and K370 BEV chassis are broadcasting incorrect VINs to PACCAR Solutions. |
| 24PBE | Service campaign | Nov 26, 2025 | The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Peterbilt, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Peterbilt 98-030 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 98-030 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 98-030 cover?
The manufacturer filed it against 18 model years: 2020 Peterbilt 220, 2021 Peterbilt 220, 2022 Peterbilt 220, 2023 Peterbilt 220, 2024 Peterbilt 220, 2025 Peterbilt 220 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.