Selectable Tire Fill

[P B Casterlin]

New to me 2019 Ram 3500 Dually with Selectable Tire Fill Alert. I was trying to adjust the pressure in my front tires today. I have the STFA enabled in the settings menu, setpoints 75 Front 65 Rears. When I got the truck home I noticed the fronts were wearing on the outside edges. The pressure was only 55 psi i both fronts. I added air in the driver's side front and the horn beeped once when I reached the 75 psi setpoint. I tried the passenger side but couldn't get the hoen to beep when I reached 75 psi. It's probably something I'm not doing or don't have enabled but the owners manual isn't much help.

Anybody familiar with this system?

 

[KeithP]

Your issue is more than likely the TPMS monitors in your tires, not the truck.

Buy a good air gauge, leave the truck turned off when inflating tires, never look at the TPMS readings unless it gives you a low tire warning.

 

[2020PW]

The wearing of the out side edge of the tire is an alignment issue. Don’t use factory specs for the alignment, find a good tire shop to do it.