RWDIII wrote:
On my F250 with sno plow pac and 17 tires its set at 80lbs,if I run 70 or less light comes on.
dealer refuses to do anything.I went thru the routine in the owners manual about 5 times with no luck
A lot of dealers will refuse or act stupid or both.
Best bet I've found is talk to a tire shop that does big tires and wheels and ask who they send their customer to to get the tpms thresholds re programmed.
I called or visited a half dozen dealers with my last Ford to no avail. Went to a big tire shop and they pointed me to the right dealer.
Fwiw if you're going to spend the time/$ to get it done think about how low you want to run your tires ever and set it below that. Winter driving, sand, off road, etc. I set mine to 30 psi all around so I can air down in the winter without the stupid light coming on.