Daimler Truck bulletin FL997
What it saysRevised emissions recall for FCCC Clean Idle Label NHTSA’s full summary ↓
Daimler Truck filed this with NHTSA as an emissions communication dated Nov 25, 2025, received Aug 2, 2024, about the engine — 7 documents under this number: FL997-DLR LTR (3 filings), FL997-Bulletin (3 filings), FL997-OWN LTR. It names 18 model years across Fccc and Thomas Built Buses (2019–2024). 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.
One page for every brand it was filed under. Each brand’s bulletins: Fccc · Thomas Built Buses.
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.
Revised emissions recall for FCCC Clean Idle Label
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| FL997-DLR LTR | Emissions | Nov 25, 2025 | 11025890 | PDF, 1,347 KB |
| FL997-Bulletin | Emissions | Nov 25, 2025 | 11025887 | PDF, 1,347 KB |
| FL997-DLR LTR | Emissions | Jan 7, 2025 | 11013222 | PDF, 1,199 KB |
| FL997-Bulletin | Emissions | Jan 7, 2025 | 11013208 | PDF, 1,199 KB |
| FL997-OWN LTR | Emissions | Jul 11, 2024 | 11005481 | PDF, 1,334 KB |
| FL997-DLR LTR | Emissions | Jul 11, 2024 | 11005474 | PDF, 1,334 KB |
| FL997-Bulletin | Emissions | Jul 11, 2024 | 11005460 | PDF, 1,334 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 themFccc 12 model years
Also filed against: 2019 Fccc MT45; 2020 Fccc MT45; 2021 Fccc MT45; 2022 Fccc MT45; 2023 Fccc MT45; 2024 Fccc MT45; 2019 Fccc MT55; 2020 Fccc MT55; 2021 Fccc MT55; 2022 Fccc MT55; 2023 Fccc MT55; 2024 Fccc MT55.
Thomas Built Buses 6 model years
Also filed against: 2019 Thomas Built Buses SAF-T-Liner C2; 2020 Thomas Built Buses SAF-T-Liner C2; 2021 Thomas Built Buses SAF-T-Liner C2; 2022 Thomas Built Buses SAF-T-Liner C2; 2023 Thomas Built Buses SAF-T-Liner C2; 2024 Thomas Built Buses SAF-T-Liner C2.
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 engine
Source: same model, same component group3 other manufacturer communications filed against these Daimler Truck models under the same component group (engine), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| F1011 | Emissions | Nov 14, 2025 | Revised Emissions Recall for GHG Label Emissions Recall |
| WI24-019 | Warranty extension | Nov 11, 2024 | Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates |
| FL998 | Emissions | Jul 10, 2024 | Emission Recall for FCCC Ambient Air Temperature Sensor |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Fccc and Thomas Built Buses, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Daimler Truck FL997 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 FL997 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 FL997 cover?
The manufacturer filed it against 18 model years across 2 brands (Fccc and Thomas Built Buses): 2019 Fccc MT45, 2020 Fccc MT45, 2021 Fccc MT45, 2022 Fccc MT45, 2023 Fccc MT45, 2024 Fccc MT45 and more. 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 1 Jul 2019; built 1 Jul 2019 – 31 Aug 2021 — the build date is on the certification label in the driver’s door jamb.