Flash: 8HP70 SRT Transmission Shift Enhancements
This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software.
A small number of customers may experience one of more of the following conditions.
Harsh or inconsistent upshift that happens intermittently.
Harsh or inconsistent downshift that happens intermittently while coasting or during passing maneuvers.
Intermittent delayed shift from 6th gear during aggressive high speed driving.
