Volvo bulletin M0308 202503
What it saysEM - Volvo Trucks has identified that the Selective Catalyst Reduction (SCR) system in certain vehicles equipped with the MY 2017 or 2018 (13L VGT) engine are not meeting California and EPA emissions standards, or Volvo… NHTSA’s full summary ↓
Volvo filed this with NHTSA as an emissions communication dated Mar 5, 2025, received Apr 2, 2025, about the fuel/propulsion system. It names 6 model years (2017–2018). An 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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
EM - Volvo Trucks has identified that the Selective Catalyst Reduction (SCR) system in certain vehicles equipped with the MY 2017 or 2018 (13L VGT) engine are not meeting California and EPA emissions standards, or Volvo cannot confirm its compliance.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| M0308 202503 | Emissions | Mar 5, 2025 | 11016358 | PDF, 397 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: 2017 Volvo VAH; 2018 Volvo VAH; 2017 Volvo VHD; 2018 Volvo VHD; 2017 Volvo VN; 2018 Volvo VN.
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 fuel/propulsion system
Source: same model, same component group5 other manufacturer communications filed against these Volvo models under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| S4343 022026 | Service campaign | Feb 1, 2026 | SC - Volvo Trucks has determined that a select group of trucks were built with an AHI Module fuel pressure sensor which does not meet our sp… |
| S4215 102025 | Service campaign | Oct 10, 2025 | SC - Volvo Trucks has determined that certain VNL model vehicles built with the 13L engine could experience injector failure. |
| M0312 202503 | Emissions | Mar 7, 2025 | EM - Volvo Trucks has identified that the Selective Catalyst Reduction (SCR) system in certain vehicles equipped with the MY 2017 or 2018 13… |
| SC - S4343 202502 | Service campaign | Feb 1, 2025 | SC - Volvo Trucks has determined that a select group of trucks were built with an AHI Module fuel pressure sensor which does not meet our sp… |
| S4215 202409 | Service campaign | Sep 24, 2024 | Service Campaign: Injector Replacement |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Volvo, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Volvo M0308 202503 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 M0308 202503 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 M0308 202503 cover?
The manufacturer filed it against 6 model years: 2017 Volvo VAH, 2018 Volvo VAH, 2017 Volvo VHD, 2018 Volvo VHD, 2017 Volvo VN, 2018 Volvo VN. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built on or after 28 Sep 2016 — the build date is on the certification label in the driver’s door jamb.