Flash: Improved Transmission Shift Quality
This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with
new software.
A small number of customers may experience a Malfunction Indicator Lamp (MIL)
illumination or describe one or more of the following conditions. Upon further investigation,
a technician may find the listed Diagnostic Trouble Code (DTC) stored in the TCM
memory.
? P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance.
? When driving on grades the 3-2 downshift is hard to achieve or not available.
? Poor shift quality during a 5-3 coast down.
