my cayenne GTS came with some strange tire pressue. the indicated showed 43psi for fronts and 54 psi for back. it also tells me i am +3 in the front and +8 in the back.

i checked the door and found the factory recommended psi. but when i called the dealer, the service advisor told me i was fine!! he said that the car showed + because the computer was programmed for partial load not full load.

this makes no sense and i just want to know how much i should have in each tires, not worry about the computer. i plan to go by the recommeded number on the door, please let me know if any other suggestions. thansk.

 

I have the same issue. I have GTS wheels on Cayenne S.