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Service bulletin TSB200109-051120

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 id10176602
Published by NHTSA2020-06-22
Manufacturer's numberTSB200109-051120
Manufacturer's date2020-05-11
NHTSA componentEQUIPMENT; POWER TRAIN

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of driver complaints of slow shifts, high shift points or lack of skip shifting. This issue applies to an OEM with a specific transmission configuration.

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

Equipment and accessories, Transmission and driveline

Vehicles listed
CUMMINS X15

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