PCM / TP question
 

OK, so a few hours in the manual, can't find this one. 09 gen 2 PCM question

In the radio "sound" options, there is a place to "check TP"...........when I do that, a check mark shows up next to teh temperature display on the screen, but I can't figure out what that does

Can anyone help explain what "set TP" is about ?