# Service bulletin SB54\-339

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: 10185689
- Published by NHTSA: 2021\-01\-22
- Manufacturer's number: SB54\-339
- Manufacturer's date: 2021\-01\-20
- NHTSA component: POWER TRAIN

## NHTSA's summary

Freightliner Service Bulletin for Updating the Programming of the Integrative Predictive Powertrain Control \(IPPC\) Module. The integrative predictive powertrain control \(IPPC\) module programming should be updated to the newest software. If the ignition short\-cycles on these vehicles with the previous software, there is a risk that the IPPC module will not have time to write EEPROM data in the controller. If this occurs, the IPPC will set check sum fault 520208/19 and will require programming to clear it.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10185689-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10185689-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2020 to 2021 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
- [19V137000](/recalls/nhtsa/19V137000.md), 2019-02-27: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)

## Other bulletins for the same vehicles and component

- [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
- [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 \(NFD\)
- [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
- [SF706\-OWN LTR](/bulletins/11029516.md), 2026-03-04, Service campaign: POWER TRAIN. Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [SF706\-DLR LTR](/bulletins/11029515.md), 2026-03-04, Service campaign: POWER TRAIN. Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [SF706\-Bulletin](/bulletins/11029509.md), 2026-03-04, Service campaign: POWER TRAIN. Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)

JSON: [/v1/bulletins/10185689](/v1/bulletins/10185689)

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