Jeep Wrangler 2012–2014 — technical service bulletin
Bulletin 1805114REVA · NHTSA communication 10221049 · issued Dec 4, 2014
Technical service bulletin
communication type
Electrical System
component
2012–2014
model years
3
vehicle entries
Official 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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.