Thomas Built Buses warranty extension WI24-019
Thomas Built Buses filed this with NHTSA as a warranty extension dated Nov 11, 2024, received Dec 4, 2024, about the engine. It names 30 model years (2016–2025). A warranty extension 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 communicationWarranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| WI24-019 | Warranty extension | Nov 11, 2024 | 11011076 | 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: 2016 Thomas Built Buses SAF-T-Liner C2; 2017 Thomas Built Buses SAF-T-Liner C2; 2018 Thomas Built Buses SAF-T-Liner C2; 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; 2025 Thomas Built Buses SAF-T-Liner C2; 2016 Thomas Built Buses SAF-T-Liner EFX; 2017 Thomas Built Buses SAF-T-Liner EFX; 2018 Thomas Built Buses SAF-T-Liner EFX; 2019 Thomas Built Buses SAF-T-Liner EFX; 2020 Thomas Built Buses SAF-T-Liner EFX; 2021 Thomas Built Buses SAF-T-Liner EFX; 2022 Thomas Built Buses SAF-T-Liner EFX; 2023 Thomas Built Buses SAF-T-Liner EFX; 2024 Thomas Built Buses SAF-T-Liner EFX; 2025 Thomas Built Buses SAF-T-Liner EFX; 2016 Thomas Built Buses SAF-T-Liner HDX; 2017 Thomas Built Buses SAF-T-Liner HDX; 2018 Thomas Built Buses SAF-T-Liner HDX; 2019 Thomas Built Buses SAF-T-Liner HDX; 2020 Thomas Built Buses SAF-T-Liner HDX; 2021 Thomas Built Buses SAF-T-Liner HDX; 2022 Thomas Built Buses SAF-T-Liner HDX; 2023 Thomas Built Buses SAF-T-Liner HDX; 2024 Thomas Built Buses SAF-T-Liner HDX; 2025 Thomas Built Buses SAF-T-Liner HDX.
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 Thomas Built Buses WI24-019 a recall?
No. A warranty extension 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 WI24-019 repair free?
A warranty extension 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 WI24-019 cover?
The manufacturer filed it against 30 model years: 2016 Thomas Built Buses SAF-T-Liner C2, 2017 Thomas Built Buses SAF-T-Liner C2, 2018 Thomas Built Buses SAF-T-Liner C2, 2019 Thomas Built Buses SAF-T-Liner C2, 2020 Thomas Built Buses SAF-T-Liner C2, 2021 Thomas Built Buses SAF-T-Liner C2 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.