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Service bulletin TSB190042-040820

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 id10159533
Published by NHTSA2019-05-13
Manufacturer's numberTSB190042-040820
Manufacturer's date2019-04-08
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of a STOP engine light with fault code 2636 or an AMBER engine light with fault code 1894 as caused by turbocharger actuator overheating.

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, Turbocharger or supercharger

Vehicles listed
CUMMINS ISL9
CUMMINS L9

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