Flash: W5A580 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 or more of the following conditions.
These symptoms are broken down by engine application.
3.6L engine (sales code ERB)
? Less than desired shift quality or elevated transmission temperatures during sport or
track driving.
? Delayed shifting in hot ambient temperatures or during aggressive and Wide Open
Throttle (WOT) driving.
5.7L engine (sales code EZH)
? Delayed shifting in hot ambient temperatures or during aggressive and Wide Open
Throttle (WOT) driving.
? Less than desired fuel economy.
