Reviving an old thread. . .
Unfortunately I have not found any success stories repairing the 1024 week GPS bug in our vehicles that displays the wrong date. I would have hoped that by now someone would have dealt with a dealer who could use a PIWIS tool to set the date to the correct setting.
There is however a Porsche solution. . .
https://apple.news/A1t1ARajVSGuH_rm8H4KmgA
Porsche makes a drop in head unit for 955, 996, 997, 987s affected by this GPS glitch.
The new head unit costs $1,500 and provides modern Bluetooth, touchscreen and streaming capabilities to the vehicle.
Considering my 2005 955 has only 63,000 original miles I may end up going this route. I’m guessing the dealer will charge $500 for labor putting this “repair” at around $2,000.
To be honest, I half expect my head unit to start “acting up” any day now. After all it is nearly 20 years old.