Flash: Transmission Diagnostic And Shift Enhancements
This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software.
Some customers may experience a less than desirable upshift in the transmission.The following enhancements are included in the software update:
Min spark changes to prevent catalytic converter overheating.
Transmission up shift quality enhancement in conjunction with Powertrain Control Module (PCM) reprogram.
