Mack bulletin M0302 022026
Mack filed this with NHTSA as a emissions communication dated Feb 1, 2026, received Mar 3, 2026, about the engine. It names 6 model years (2017–2018). A emissions communication 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 communicationEmissions - Mack Trucks has determined that certain vehicles equipped with a model year (“MY�) 2017-2018 MP7 engine may not meet California and Federal Regulations (CARB).
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| M0302 022026 | Emissions | Feb 1, 2026 | 11029451 | 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: 2017 Mack Anthem (an); 2018 Mack Anthem (an); 2017 Mack CXU; 2018 Mack CXU; 2017 Mack Pinnacle (pi/pn); 2018 Mack Pinnacle (pi/pn).
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 Mack M0302 022026 a recall?
No. A emissions communication 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 M0302 022026 repair free?
A emissions communication 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 M0302 022026 cover?
The manufacturer filed it against 6 model years: 2017 Mack Anthem (an), 2018 Mack Anthem (an), 2017 Mack CXU, 2018 Mack CXU, 2017 Mack Pinnacle (pi/pn), 2018 Mack Pinnacle (pi/pn). Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.