I need help with my abs and traction control

[MonkeyMan]

Hello from Arizona with a 2008 v6 Lucerne cxl, I am having an issue with my abs and traction control. I had this issue a couple of months ago, I replaced one of my tps sensors and it went away and is now back. It only ever comes up when I drive up hill very rarely my abs will come on when I am taking off from a stop sign. My brake fluid is topped off and all my wheel sensors display the psi so they should be functional. Any advice would be helpful.

Edit: When the abs light is on all my tps sensors do not display the psi