The automatic transmission may develop shifting problems and/or the Check Engine Light may illuminate due to internal component failure and/or software issues. It is always best to be sure the transmission control module has the latest software installed when any major transmission repair is performed.Google+
Car Problem Reports
Volvo S80 Transmission Shifting Issues Due to Internal Failure and Software Issues
Volvo S80 Problem
Drive Train Affected: w/o AWD
Average Mileage: 95,055 mi (31,000 mi - 150,000 mi)
Visitor, 2003 Volvo S80, 74,222 mi
will not up-shift from 2d to 3d normally, but if I can really slowly increase the speed sometimes it will shift and then be OK till I have to stop for something. Later I learned to pull over, shut off engine, restart and then do the slow sneak up. Dealer said "new xmsn for $4710 and new control computer for $700"
The gear shift often gets stuck in the "park" position and will not budge.
Visitor, 2001 Volvo S80, w/o AWD, 125,000 mi
transmission light on and software issues