My 07 Cayman shows a little schematic with tire pressures... just cycle through the display options ..
Also some of the better scanners can display the battery status of the sensors, mine is an Icarsoft. Also a lot of shops have a scanner you hold near the valve stem which gives you all the info... Whats interesting is the wheel temp is 73F ambient here is 51F now..I wonder if that is the temp of the air in the tire, or the physical wheel.