Dodge Durango 2018 — technical service bulletin
Bulletin 21-047-17 · NHTSA communication 10217494 · issued Nov 8, 2017
Technical service bulletin
communication type
Electrical System
component
2018
model years
2
vehicle entries
Official summary
Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) withthe latest available software. Customers may experience the following:A ?bump? or ?jerk? during a park to driveor park to reverse garage shift immediately after starting the engine.The above symptom/condition can only be duplicated at startup when vehiclehas been shut down for at least 5 minutes. Poor shift quality or ?bump? experienced during or immediatelyafter Engine Stop/Start (ESS) restart.
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.