Jeep Grand Cherokee 2019 — technical service bulletin
Bulletin 18-044-19 REV. B · NHTSA communication 10170385 · issued Dec 11, 2019
Technical service bulletin
communication type
Electrical System
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 one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P06EF - Engine Restart Performance.After an Engine Stop/Start (ESS) event, the vehicle may exhibit a delay in cranking with an active P06EF. P0111 - Intake Air Temperature Sensor 1 Performance. Customer or technician may also experience the following:Unable to read data
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.