Freightliner service campaign SF725
What it saysField Service campaign for Differential Lock Buzzer NHTSA’s full summary ↓
Freightliner filed this with NHTSA as a service campaign dated Apr 10, 2026, received May 2, 2026, about the power train — 3 documents under this number: SF725-OWN LTR, SF725-DLR LTR, SF725-Bulletin. It names 1 model year (2026). A service campaign 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 communicationField Service campaign for Differential Lock Buzzer
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SF725-OWN LTR | Service campaign | Apr 10, 2026 | 11031961 | PDF, 3,861 KB |
| SF725-DLR LTR | Service campaign | Apr 10, 2026 | 11031960 | PDF, 3,861 KB |
| SF725-Bulletin | Service campaign | Apr 10, 2026 | 11031958 | PDF, 3,861 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: 2026 Freightliner Cascadia.
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 power train
Source: same model, same component group1 other manufacturer communication filed against the Freightliner Cascadia under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SF706 | Service campaign | Apr 15, 2026 | Revised Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem (AT) 6x4 to New Final Drive (NFD) |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Freightliner, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Freightliner SF725 a recall?
No. A service campaign 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 SF725 repair free?
A service campaign 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 SF725 cover?
The manufacturer filed it against 1 model year: 2026 Freightliner Cascadia. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.