Software updates are available to address transmission issues. However, due to the age of these vehicles, mechanical failures are more likely to be causing transmission problems. If a mechanical failure is repaired or the transmission is replaced, it is important to make sure any software updates have been taken care of. Failure to do so could result in continuing transmission issues.
Car Problem Reports
Chrysler Concorde Software Updates Available to Address Transmission Issues
Chrysler Concorde Problem
Visitor, 1994 Chrysler Concorde, 61,000 mi
slight transmission slippage when slowing down
Transmission won't pull in Drive (intermittent), or reverse (intermittent)