Mack bulletin M0303 202405
Mack filed this with NHTSA as a emissions communication dated May 28, 2024, received Jun 4, 2024, about the engine. It names 13 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 communicationEmission Recall: Mack Trucks has determined that certain vehicles equipped with a model year (“MY�) 2017-2018 MP8 VGT engines may not meet California and Federal Regulations (CARB). This Recall is for updated software that will reduce the amount of time necessary for the system to operate in a cold engine warm-up strategy and provide health monitoring of the Selective Catalyst Reduction (SCR).
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| M0303 202405 | Emissions | May 28, 2024 | 11000819 |
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: 2017 Mack Anthem (an); 2018 Mack Anthem (an); 2017 Mack CHU; 2018 Mack CHU; 2017 Mack CXU; 2018 Mack CXU; 2017 Mack Granite (gu); 2018 Mack Granite (gu); 2017 Mack MRU; 2018 Mack MRU; 2018 Mack Pinnacle (pi/pn); 2017 Mack Terrapro (te); 2018 Mack Terrapro (te).
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 M0303 202405 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 M0303 202405 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 M0303 202405 cover?
The manufacturer filed it against 13 model years: 2017 Mack Anthem (an), 2018 Mack Anthem (an), 2017 Mack CHU, 2018 Mack CHU, 2017 Mack CXU, 2018 Mack CXU and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.