# Service bulletin SF615

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: 10202734
- Published by NHTSA: 2021\-11\-03
- Manufacturer's number: SF615
- Manufacturer's date: 2021\-10\-14
- NHTSA component: EQUIPMENT; ELECTRICAL SYSTEM

## NHTSA's summary

Stoneridge ICUC Replacement. Certain vehicles equipped with a Stoneridge instrument control unit common \(ICUC\) were programmed using a new method to improve efficiency and align with programming for European ICUCs. All ICUCs built using the new method are permanently in the "read only" mode, and any attempt to flash will corrupt the ICUC memory.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10202734-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10202734-9999.pdf)

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

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- 2021 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [2021399](/recalls/tc/2021399.md), 2021-06-25: Electrical
- [21V481000](/recalls/nhtsa/21V481000.md), 2021-06-25: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

## Other bulletins for the same vehicles and component

- [FleetCom 1\_Solenoid](/bulletins/11031966.md), 2026-05-02, Other: ELECTRICAL SYSTEM. Fleet Communications for solenoid issues
- [FleetCom\_SS 3174\-FTL](/bulletins/11026469.md), 2025-12-06, Other: ELECTRICAL SYSTEM. Fleet Communication for SS 3174\-FTL
- [FleetCom\_AMP Draw](/bulletins/11026454.md), 2025-12-06, Other: ELECTRICAL SYSTEM. Fleet Communications for Key off amp draw
- [CXA\_10\_25\_Tech Questions](/bulletins/11024966.md), 2025-11-05, Other: ELECTRICAL SYSTEM; POWER TRAIN. CX Advocate for technical questions/issues raised
- [SS3176\-FTL](/bulletins/11017537.md), 2025-05-02, Other: ELECTRICAL SYSTEM. Service Solution for ICC5 Erroneous Electric Power Steering Warning Message
- [CXA 4\_25\_Elec Pwr Steer](/bulletins/11017529.md), 2025-05-02, Other: ELECTRICAL SYSTEM. CX Advocate for ICC5 erroneous electric power steering warning message \(SS3176\-FTL\)
- [SS3176\-FTL](/bulletins/11016335.md), 2025-04-02, Other: ELECTRICAL SYSTEM. Service Solution for ICC5 Erroneous Electric Power Steering Warning Message
- [SS3174\-FTL](/bulletins/11016315.md), 2025-04-02, Other: ELECTRICAL SYSTEM. Service Solution for ICC5 B\-Panel Gauges Intermittently Not Being Displayed
- [SS3161\-FTL](/bulletins/11013215.md), 2025-01-29, Other: ELECTRICAL SYSTEM. Service Solution for Cascadia intermittent no\-start and CPC not configured message
- [FAB337](/bulletins/11012394.md), 2025-01-07, Other: ELECTRICAL SYSTEM. FAB 337 for 4th and Fifth Gen Cascadia RP1226 \- Progressive Low Voltage Disconnect \(PLVD\)

JSON: [/v1/bulletins/10202734](/v1/bulletins/10202734)

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