# Service bulletin SB54\-328

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: 10189621
- Published by NHTSA: 2021\-04\-01
- Manufacturer's number: SB54\-328
- Manufacturer's date: 2021\-03\-31
- NHTSA component: POWER TRAIN

## NHTSA's summary

Updated Freightliner Service Bulletin for Rerouting Wiring Harness to Reduce Chafing. This bulletin replaces the version dated 06/29/2020. Two new illustrations have been added to demonstrate proper application of butterfly tie straps on the transmission. \-\-\-Allison transmission wiring harness chafing causes disruption to gear engagement and fault code generation. To reduce chafing, the wiring is routed using stand off brackets and tie straps to minimize contact with the transmission parts. This bulletin applies to vehicles equipped with on\-board diagnostics \(OBDs\) manufactured after 2016.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189621-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189621-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2017 to 2022 FREIGHTLINER 108SD
- 2017 to 2022 FREIGHTLINER 114SD
- 2017 to 2022 FREIGHTLINER BUSINESS CLASS M2

## Recalls for the same vehicles and component

- [2020488](/recalls/tc/2020488.md), 2020-10-16: Powertrain
- [20V642000](/recalls/nhtsa/20V642000.md), 2020-10-16: POWER TRAIN:CLUTCH ASSEMBLY
- [20V176000](/recalls/nhtsa/20V176000.md), 2020-03-23: POWER TRAIN:AXLE ASSEMBLY
- [19V443000](/recalls/nhtsa/19V443000.md), 2019-06-11: POWER TRAIN:AXLE ASSEMBLY
- [2018714](/recalls/tc/2018714.md), 2018-12-19: Powertrain
- [18V903000](/recalls/nhtsa/18V903000.md), 2018-12-19: POWER TRAIN:CLUTCH ASSEMBLY
- [16V634000](/recalls/nhtsa/16V634000.md), 2016-08-31: POWER TRAIN:AXLE HUBS

## 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\-26\-001\-DDC](/bulletins/11031992.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for DT12 Range Detent Diagnostic
- [TSB\-26\-001\-DDC](/bulletins/11030623.md), 2026-04-02, Other: POWER TRAIN. Technical Service Bulletin for DT12 Range Detent Diagnostic
- [CXA\_01\_26\_Trans Support](/bulletins/11028069.md), 2026-02-03, Other: POWER TRAIN. CX Advocate for Aftermarket Transmission Support
- [FleetCom\_Oil Plug Loc](/bulletins/11027500.md), 2026-01-08, Other: POWER TRAIN. Fleet Communications for NFD Lower Oil Plug Location \- SP Axles
- [TSB26\-056\-FTL](/bulletins/11017555.md), 2025-05-02, Service bulletin: POWER TRAIN. Service Solution for DT12 Oil Plug Ports
- [TSB35\-039\-FTL](/bulletins/11012312.md), 2025-01-03, Service bulletin: POWER TRAIN. Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management
- [TSB35\-039\-FTL](/bulletins/11011588.md), 2024-12-06, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management.
- [CXA 11\_21\_M2, SD Transfer](/bulletins/11011096.md), 2024-12-04, Other: POWER TRAIN; ENGINE. CX Advocate for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed \(SS 3155\-FTL\)
- [SS3155\-FTL](/bulletins/11010151.md), 2024-11-06, Other: ENGINE; POWER TRAIN. Service Solution for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed

JSON: [/v1/bulletins/10189621](/v1/bulletins/10189621)

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