Jeep Wrangler 2012–2013 — technical service bulletin
Bulletin 18-025-16 · NHTSA communication 10140236 · issued Mar 11, 2016
Technical service bulletin
communication type
Electrical System
component
2012–2013
model years
2
vehicle entries
Official summary
Flash: 3.6L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTCs): · U0140 Lost Communication With Body Control Module. Attempting to clear the DTC may be unsuccessful. Other enhancements included in this update: · Improved fuel pump relay operation. · Improved remote start time after key activation. · Improved Automatic Shutdown Re
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.