# Service bulletin TSB\-26\-059\-FTL

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 bulletin
- NHTSA id: 11034534
- Published by NHTSA: 2026\-07\-06
- Manufacturer's number: TSB\-26\-059\-FTL
- Manufacturer's date: 2026\-06\-22
- NHTSA component: POWER TRAIN

## NHTSA's summary

Technical Service Bulletin for Chelsea PTO Quality Issue

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034534-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034534-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2026 FREIGHTLINER 108SD
- 2026 FREIGHTLINER 114SD
- 2026 FREIGHTLINER 122SD
- 2026 FREIGHTLINER BUSINESS CLASS M2
- 2026 FREIGHTLINER CASCADIA
- 2026 FREIGHTLINER CASCADIA FIFTH GEN

## 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 \(Aborts\)
- [TS\-0004\-00](/bulletins/11036681.md), 2026-09-02, Other: POWER TRAIN. Truck Equipment Manufacturer Solution for Odometer Pause \& PTO Mode Delay with Customer Installed SSPTO \& Controls
- [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
- [TS\-0013\-00](/bulletins/11035546.md), 2026-08-03, Other: POWER TRAIN. Truck Equipment Manufacturer Solution for PTO Mode Delay for Driving PTO
- [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
- [TS\-0008\-00](/bulletins/11033089.md), 2026-06-01, Other: POWER TRAIN. Truck Equipment Manufacturer Solution for RSS with PTO Engagement
- [TSB\-26\-001\-DDC](/bulletins/11031992.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for DT12 Range Detent Diagnostic

JSON: [/v1/bulletins/11034534](/v1/bulletins/11034534)

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