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Service bulletin TSB150099

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 id10238651
Published by NHTSA2023-07-05
Manufacturer's numberTSB150099
Manufacturer's date2023-06-19
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of issue of ADEPTâ„¢ technology is a set of electronic features including SmartTorque2 and SmartCoastâ„¢, Predictive Gear Shifting, Predictive Engine Braking, On-ramp Boost, Predictive Road Speed Governor, Dynamic Power and Hill Roll Out. This is an update to the previously submitted communication.

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

Engine

Vehicles listed
CUMMINS ISX12
CUMMINS ISX15
CUMMINS X12
CUMMINS X15

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