Flash: 845RE Transmission Shift Enhancements, 2-1 Downshift
This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software.
The following TCM calibration improvements are available for vehicles equipped an 845RE Automatic Transmission (Sales Code DFL). These updates are listed by vehicle and engine.LD and LX vehicles equipped with a 3.6L engine (Sales Code ERB)
Software to correct a harsh bump feel during a 2-1 downshift.
Software to enable the scan tool based transmission ?Quick Learn.?
Software to address customer concerns of Malfunction Indicator Lamp (MIL) illumination and Diagnostic Trouble Code (DTC) P215C Output Shaft Speed, Wheel Speed Correlation setting on
AWD equipped vehicles.LX and WK vehicles equipped with a 3.0L engine (Sales Code EHD)
Software to correct a harsh bump feel during a 2-1 downshift.WK vehicles equipped with a 3.6L engine (Sales Code ERB)
Software to correct a harsh bump feel during a 2-1 downshift.DS vehicles equipped with 3.6L engine (Sales Code ERB)
