Freightliner bulletin D24R7
Freightliner filed this with NHTSA as a emissions communication dated Jan 31, 2025, about the engine — 3 documents under this number: D24R7-OWN LTR, D24R7-DLR LTR, D24R7-Bulletin. It names 3 model years (2022–2024). 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 for DD8 EGR Monitor Software Reprogramming
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| D24R7-OWN LTR | Emissions | Jan 31, 2025 | 11013295 | not yet checked |
| D24R7-DLR LTR | Emissions | Jan 31, 2025 | 11013294 | not yet checked |
| D24R7-Bulletin | Emissions | Jan 31, 2025 | 11013293 | 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: 2022 Freightliner Business Class M2; 2023 Freightliner Business Class M2; 2024 Freightliner Business Class M2.
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 Freightliner D24R7 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 D24R7 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 D24R7 cover?
The manufacturer filed it against 3 model years: 2022 Freightliner Business Class M2, 2023 Freightliner Business Class M2, 2024 Freightliner Business Class M2. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.