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Service bulletin 21-023-14

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 id10063713
Published by NHTSA2016-05-09
Manufacturer's number21-023-14
Manufacturer's date2014-07-18
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Software

Vehicles listed
JEEP WRANGLER2014

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

Other bulletins for the same vehicles and component
18-071-142018-06-11. Service bulletin. Flash: Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience less than desired shift points during Wide Open Throttle (WOT) operation. This PCM software has been enhanced to provide optimal shift points during these operating conditions.
24-010-142016-05-13. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
18-051-142016-05-09. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
18-051-14REV.A2016-05-09. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
18-029-142016-04-26. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
18-029-14REV.A2016-04-26. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
18-003-142016-04-26. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.