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My 2011 F250 truck has placard with tire pressure recommendations of 65 psi front, 80 psi rear tires. I can understand rear tires at 80 psi when hauling my RV. But for untethered driving I would like to try 65 at the rear.

So my concern is the TPMS may flag on the dash if I set rear tires to, say, ~65, as the front are.

Question - will I have to have the truck computer reprogrammed for lower monitoring pressure, set like the front tires (@65 psi). Can it be reprogrammed, or will I run into flack with dealer? If not able to reset like front tires, what is lowest it could be programmed?

I wouldn’t want to lower rears to 65, drive with tire warning display looking at me all times.

Appreciate if anyone did this, offer experiences. Or if a Ford tech here could advise.

TIA.
 

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