# Service bulletin SB26\-054

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: 10205881
- Published by NHTSA: 2022\-01\-04
- Manufacturer's number: SB26\-054
- Manufacturer's date: 2021\-12\-07
- NHTSA component: POWER TRAIN

## NHTSA's summary

DT12 Transmission Control Harness Chafing the Transmission Control Module. Classic and New Cascadia vehicles equipped with DT12 transmissions, built from approximately January 2017 to mid\-March 2021, may experience rubbing/chafing on the chassis harness near the transmission.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205881-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205881-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2017 to 2022 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [2021174](/recalls/tc/2021174.md), 2021-03-24: Powertrain
- [21V209000](/recalls/nhtsa/21V209000.md), 2021-03-24: POWER TRAIN:CLUTCH ASSEMBLY
- [20V742000](/recalls/nhtsa/20V742000.md), 2020-11-30: POWER TRAIN:CLUTCH ASSEMBLY
- [2020488](/recalls/tc/2020488.md), 2020-10-16: Powertrain
- [20V642000](/recalls/nhtsa/20V642000.md), 2020-10-16: POWER TRAIN:CLUTCH ASSEMBLY
- [19V137000](/recalls/nhtsa/19V137000.md), 2019-02-27: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)
- [2018714](/recalls/tc/2018714.md), 2018-12-19: Powertrain
- [18V903000](/recalls/nhtsa/18V903000.md), 2018-12-19: POWER TRAIN:CLUTCH ASSEMBLY
- [2017569](/recalls/tc/2017569.md), 2017-11-20: Powertrain
- [17V730000](/recalls/nhtsa/17V730000.md), 2017-11-17: POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [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 \(Aborts\)
- [TSB\-42\-080\-FTL](/bulletins/11035527.md), 2026-08-03, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for ABS Wheel Speed Fault Code Correction for MBSP Equipped Vehicles. Updated frequently asked questions.
- [TSB\-26\-057\-FTL](/bulletins/11033103.md), 2026-06-01, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for DT12 OVX Transmission Refresh
- [TSB\-26\-001\-DDC](/bulletins/11031992.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for DT12 Range Detent Diagnostic
- [ICI26\-006](/bulletins/11031973.md), 2026-05-02, Other: POWER TRAIN. Important Campaign Information for SF706 \- Revised, Reactivated
- [SF706\-DLR LTR](/bulletins/11031972.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [SF706\-Bulletin](/bulletins/11031971.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [TSB\-26\-001\-DDC](/bulletins/11030623.md), 2026-04-02, Other: POWER TRAIN. Technical Service Bulletin for DT12 Range Detent Diagnostic
- [ICI26\-003](/bulletins/11030493.md), 2026-04-02, Other: POWER TRAIN. Important Campaign Information letter for SF706 \- campaign suspended
- [FleetCom\_SF706](/bulletins/11029522.md), 2026-03-04, Other: POWER TRAIN. Fleet Communications for SF706 \- Cascadia axle conversion

JSON: [/v1/bulletins/10205881](/v1/bulletins/10205881)

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