I have had a difficult time in keeping the tire pressures at the recommended 30 psi. Maybe because its cooler weather now and all. I will put 32 psi in all four tires using my guages but the TPM indicates about 1-2 psi lower. This morning when I came out it was showing only 27 psi in the front tires and 29 psi in the rears. I added more air up to 32 psi, but the TPM still indicates 30 psi. Just wondered about the accuracy of the TPM system. Also I guess since the tires are soft rubber they tend to let a little air pressure out more frequently than harder tires. I have never added air more than quarterly on my other vehicles. Seems like I am fiddling with these on a weekly basis. Just wanted some feedback if others are seeing the same thing.