Peterbilt service campaign E322
Peterbilt filed this with NHTSA as a service campaign dated Oct 29, 2024, received Nov 5, 2024, about the engine. It names 3 model years (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 communicationE322 - EMY2024 CARB MX Software Update - INTERIM Campaign – Interim Notification Certain model year 2025 567, 579 and 589 chassis equipped with EMY2024 CARB MX-13 engines and NA-100C software may experience a Malfunction Indicator Lamp (MIL) due to a software issue. If ignored, a derate may occur. This bulletin will be updated once the software is available.
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| E322 | Service campaign | Oct 29, 2024 | 11009759 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. 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. Quote it 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: 2025 Peterbilt 567; 2025 Peterbilt 579; 2025 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 E322 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 E322 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 E322 cover?
The manufacturer filed it against 3 model years: 2025 Peterbilt 567, 2025 Peterbilt 579, 2025 Peterbilt 589. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.