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Service bulletin ICI23-043

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10246168
Published by NHTSA2023-12-06
Manufacturer's numberICI23-043
Manufacturer's date2023-11-17
NHTSA componentPOWER TRAIN

NHTSA's summary

Important Campaign Information Letter for SF680 Allison TCM Software Update / TT9108EN

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Vehicles listed
FREIGHTLINER 108SD2023
FREIGHTLINER 114SD2023, 2024
FREIGHTLINER BUSINESS CLASS M22023 to 2024
WESTERN STAR 47002023, 2024
WESTERN STAR 49002023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
MAN 00000728682026-10-05. Other. Detroit Transmissions Manual Update for Symptom Diagnostics — DT12 C/D Box Range Shift to Neutral with Reversing Events (Aborts)
TS-0013-002026-08-03. Other. Truck Equipment Manufacturer Solution for PTO Mode Delay for Driving PTO
TS-0008-002026-06-01. Other. Truck Equipment Manufacturer Solution for RSS with PTO Engagement
TSB-26-001-DDC2026-05-02. Service bulletin. Revised Technical Service Bulletin for DT12 Range Detent Diagnostic
TSB-26-001-DDC2026-04-02. Other. Technical Service Bulletin for DT12 Range Detent Diagnostic
TSB-26-058-FTL2026-03-27. Service bulletin. Technical Service Bulletin for Transmission shift stalk
CXA_01_26_Trans Support2026-02-03. Other. CX Advocate for Aftermarket Transmission Support
FleetCom_Oil Plug Loc2026-01-08. Other. Fleet Communications for NFD Lower Oil Plug Location - SP Axles
FleetCom_TCM Clutch2026-01-07. Other. Fleet Communications for TCM Fault 520970/7 – Clutch Unable to Open Fully
FleetCom_Clutch2025-12-06. Other. Fleet Communications for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently