Jeep Compass 2018 — technical service bulletin
Bulletin 21-030-19 · NHTSA communication 10162574 · issued May 31, 2019
Technical service bulletin
communication type
Power Train
component
2018
model years
1
vehicle entries
Official summary
Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0780 - Gear Shift Malfunction. P1DD2 - Torque Request Signal From TCM Denied. Customers may also experience one or more of the following:A bump feeling and high engine RPMs. The vehicle going into limp home mode.
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.