Jeep Compass 2011–2014 — technical service bulletin
Bulletin 18-025-15 · NHTSA communication 10144863 · issued Mar 31, 2015
Technical service bulletin
communication type
Power Train
component
2011–2014
model years
8
vehicle entries
Official summary
Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a slight, audible, spark knock at times. This typically occurs in stop and go traffic during light tip-in acceleration with the AC off. No Diagnostic Trouble Codes (DTCs) will set as a result of this condition.
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.