# Service campaign SF725\-DLR LTR

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service campaign
- NHTSA id: 11031960
- Published by NHTSA: 2026\-05\-02
- Manufacturer's number: SF725\-DLR LTR
- Manufacturer's date: 2026\-04\-10
- Campaign id or software version: SF725
- NHTSA component: POWER TRAIN

## NHTSA's summary

Field Service campaign for Differential Lock Buzzer

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031960-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031960-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2026 FREIGHTLINER CASCADIA

## Other bulletins for the same vehicles and component

- [CXA 09\_26\_Chelsea PTO](/bulletins/11038012.md), 2026-10-05, Other: POWER TRAIN. CX Advocate for Chelsea PTO Quality Notice \(TSB 26\-059 FTL, TSB\-26\-010 WST\).
- [MAN 0000072868](/bulletins/11037996.md), 2026-10-05, Other: POWER TRAIN. Detroit Transmissions Manual Update for Symptom Diagnostics — DT12 C/D Box Range Shift to Neutral with Reversing Events \(Aborts\)
- [FleetCom 1\_TransOil Cool](/bulletins/11036677.md), 2026-09-02, Other: POWER TRAIN. Fleet Communications for eAxle Breather Hose Relocation to Reduce Water Intrusion Risk
- [CXA 08\_26\_TransOil Cooler](/bulletins/11036670.md), 2026-09-02, Other: POWER TRAIN. CX Advocate for Transmission Oil Cooler Lines Rubbing
- [TSB\-26\-059\-FTL](/bulletins/11034534.md), 2026-07-06, Service bulletin: POWER TRAIN. Technical Service Bulletin for Chelsea PTO Quality Issue
- [CXA 06\_26\_H Plate](/bulletins/11034514.md), 2026-07-06, Other: POWER TRAIN. CX Advocate for Eliminating Retaining H\-Plate; Revised to Native Voss Quick­Connect
- [CXA 05\_26\_TransOil Cooler](/bulletins/11033099.md), 2026-06-01, Other: POWER TRAIN. CX Advocate for Transmission Oil Cooler Lines Rubbing APU Coolant Lines
- [TSB\-26\-001\-DDC](/bulletins/11031992.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for DT12 Range Detent Diagnostic
- [SF725\-OWN LTR](/bulletins/11031961.md), 2026-05-02, Service campaign: POWER TRAIN. Field Service campaign for Differential Lock Buzzer
- [SF725\-Bulletin](/bulletins/11031958.md), 2026-05-02, Service campaign: POWER TRAIN. Field Service campaign for Differential Lock Buzzer

JSON: [/v1/bulletins/11031960](/v1/bulletins/11031960)

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