How can I activate my TPC on a 2007 cayman(Porsche)

The batteries the sensor go dead and the system cant read the air presure info. The whole sensor has to be replaced and it will only be good for a few years before it goes dead again. I would just get a nice tire gauge and check the air presure every couple of months. You could call the dealer and see if there is a way to shut off or disable the system message.

Ok I get that but I can't read anything else on my dash, like oil level or anything else where is this sensor?

Try this link: http://911car.blogspot.com/2011/06/how-to-disable-tpm-on-porsche-cars.html#!/2011/06/how-to-disable-tpm-on-porsche-cars.html