My 2015 SRT Challenger also
My 2015 SRT Challenger also has the software update version 17.43.01 and the sport mode seems to work fine. I downloaded the software on my computer then to a thumb drive and to the car from the thumb drive. That was a year or so ago.
Now in an unrelated problem, the clock won't stay synced with the GPS. Have to manually set it. Sometimes at random it will start syncing properly.This is a very recent problem and I don't think it's related to the software issue. Does anyone know if you NEED a Uconnect subscription to get updates through satellite? I cancelled my subscription over the phone when customer service explained what bells and whistles you get for your money. I didn't think it was worth all the money they were charging.