Tire pressure

[ljames]

I have searched this site to see if any one knows how to recalibrate the computer to allow 18 inch Ford Blackout rims @ 32 psi VS the factory 17 inch tire wheel combo @ 38 psi. currently running about 38 psi to get the TPMS to not show error, and it is a bit rough with the FX4 package. Basically want to recalibrate TPMS to 32 psi. Did I miss a thread on this?

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[ljames]

Seems to not be a problem any longer.
Perhaps Ford did a update via WIFI- it could be that if all tires are the same psi, the computer says OK?
32 psi is no longer a problem with tpms

 

[JohnnyO]

Sometimes you have to drive a bit for them to reset. Speaking generally.

 

[Cabose-1]

Weird...my light oy turns on if i let air out below 28 psi

Non fx4
Xlt 4x2

 

[Big Blue]

I have searched this site to see if any one knows how to recalibrate the computer to allow 18 inch Ford Blackout rims @ 32 psi VS the factory 17 inch tire wheel combo @ 38 psi. currently running about 38 psi to get the TPMS to not show error, and it is a bit rough with the FX4 package. Basically want to recalibrate TPMS to 32 psi. Did I miss a thread on this?

You could try using Forscan to change the TPMS placard pressure in the BCM to a lower pressure for both the front and rear.

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