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Service bulletin 21-042-15 REV-A

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 id10148683
Published by NHTSA2018-11-19
Manufacturer's number21-042-15 REV-A
Manufacturer's date2015-09-25
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN

NHTSA's summary

Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience one of the following: ? Calibration will prevent unintentional engagement of AutoStick (Manual Mode) when shifter is bumped or tapped. ? Poor shift quality or a delayed shifts.

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, Equipment and accessories, Transmission and driveline

Vehicles listed
JEEP COMPASS2014, 2015, 2016
JEEP PATRIOT2014, 2015, 2016

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

Recalls for the same vehicles and component
20166242016-12-14. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

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