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Service bulletin 18-051-14 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 id10139879
Published by NHTSA2018-06-11
Manufacturer's number18-051-14 REV. A
Manufacturer's date2014-12-04
NHTSA componentPOWER TRAIN

NHTSA's summary

Flash: J8 Mining Vehicle Speed Limiting This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of J8 Vehicles built as over-the-road units for non-reg BUX markets and sold to US-based mining operations with the intent of re-programming the diesel PCM to limit vehicle-speed in the mining environment. The discretion of which mining flash is to be used is left to the discretion of the operator.

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

Transmission and driveline

Vehicles listed
JEEP WRANGLER2012, 2013, 2014

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

Recalls for the same vehicles and component
13V2340002013-06-04. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

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

Other bulletins for the same vehicles and component
1012322024-11-07. Service bulletin. Plate - Planetary
21033142023-01-17. Service bulletin. MIL Illumination For P0730 And Transmission Shift Enhancements
18051142023-01-17. Service bulletin. Flash: J8 Mining Vehicle Speed Limiting This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of J8 Vehicles built as over-the-road units for non-reg BUX markets and sold to US-based mining operations with the intent of re-programming the diesel PCM to limit vehicle-speed in the mining environment. The discretion of which mining flash is to be used is left to the discretion of the operator.
18071142023-01-17. 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.
21014142023-01-17. Service bulletin. Transmission Shift Enhancements
21013142023-01-17. Service bulletin. Transmission Oil Cooler Tube
2101314-12023-01-17. Service bulletin. N28 Transmission Oil Cooler Tube Interim Repair
21035152023-01-09. Service bulletin. Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software.
V512022-12-19. Service bulletin. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
S17210000162022-10-17. Service bulletin. Service 4wd Light On, Message AWD System Service Required