Flash: Transmission Shift And Drivability Enhancements
This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following conditions. Less than desired shift response during heavy load or aggressive driving in high ambient temperatures. Bump sensation felt while downshifting during coasting deceleration or normal braking (5.7L and 6.4L applications only). Less than desired fuel economy.
