Flash: Transmission Diagnostic and Shift Enhancements
This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software.
Customers may experience the following: A ?bump? or ?jerk? during a park to drive or park to reverse garage shift immediately after starting the engine. The above symptom/condition can only be duplicated at startup when vehicle has been shut down for at least 5 minutes.
Poor
shift quality or ?bump? experienced during or immediatelyafter Engine Stop/Start (ESS) restart.
