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Service bulletin TSB1800050111201

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 id10154244
Published by NHTSA2019-03-11
Manufacturer's numberTSB1800050111201
Manufacturer's date2019-01-11
NHTSA componentELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution to hunting during cold startups, generally in areas with cooler ambient temperatures. In some cases, the generator set will hunt until it shuts down on fault code 58 ? Exhaust Gas Temperature Shutdown. The issue sometimes corrects itself once the generator has warmed up, but is likely to return at next cold start. This is an update to a 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

Electrical system, Engine, Equipment and accessories, Labels and manuals, Alternator

Vehicles listed
CUMMINS HGJAA
CUMMINS HGJAD

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