Flash: Transmission Shift Enhancements
This bulletin involves selectively erasing and reprogramming
the Transmission Control Module (TCM) with new software.
NOTE: This bulletin applies to the following vehicles:
? Wrangler vehicles equipped with the WA580 Automatic Transmission
(Sales Code DGJ)
? Challenger vehicles equipped with either the 3.6L engine (Sales Code
ERB) or the 6.4L Engine (Sales Code ESH or ESG) and the WA580
Automatic Transmission (.Sales Code DGJ)
? Durango vehicles equipped with the 3.6L engine (Sales Code ERB) and
the WA580 Automatic Transmission (Sales Code DGJ)
? Grand Cherokee vehicles equipped with the 6.4L engine (Sales Code
ESG) for all markets except Australia (Sales Code 8AL) or the 3.6L
engine (Sales Code ERB) (All Markets) and the WA580 Automatic
Transmission (Sales Code DGJ). Australian vehicles equipped with the
6.4L can refer to Service Bulletin 21-010-14
