Jeep Cherokee 2019 — technical service bulletin
Bulletin 18-024-19 REV. A · NHTSA communication 10168431 · issued Oct 1, 2019
Technical service bulletin
communication type
Power Train
component
2019
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the one ormore of the following Diagnostic Trouble Codes (DTCs) have been set:P0456 - EVAP System Small Leak. P06EF - Engine Restart Performance. Customers may also comment on the following:The engine fails to restart while in Engine Stop/Start (ESS) mode. This is usually accompanied with DTC P06EF.
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.