Had same issue, there is a setting in the maps to turn on as mine would claim I was parked across the street at my neighbors driveway...check the settings. I cannot recall what the exact steps are though but it is a setting in the vehicle....I would go out and check, but it's early, it's raining...
Your alloys will be fine. Most reputable rim manufacturers will apply a protective clear coat on them and I believe Sparco does the same, also willing to bet, your Sparcos are sprayed with this unbelievable new fangled coating called epoxy paint.....the steelies are also covered in a similar...
Before I bought my Lariat hybrid, I took a Crown out for a test drive and was shocked at how cramped it was inside. Even compared to a Camry...good luck with your Toyota.
My point was, retailers will put the 5 quart bottle on sale, but stiff you on the 1 quart bottle needed for the "extra" you need to do the oil change....sometimes, you can also find the "6-pack" on sale too...but more often than not, it is the "5 quart bottle and oil filter" package sales that...
I would not recommend cheap-o Chinese TPMS either, but Motorcraft TPMS117's....sometimes, you can find a good deal on a set....just gotta look around a bit.
Necessary...no, not having a light and chime to remind me that they are not necessary? Ehh, I'll put the sensors in...
Can get them pretty inexpensively on eBay, Amazon, Rock Auto...
I got a set of steelies at $40 cash for all four but no TPMS sensors included. Found a set of "take off"...
I think the app is checking the pressure of the SUV down the street....vehicle depicted looks nothing like a pickup....lol
But, in truth, when you check pressure cold vs warmed up, there is about a 4-5 pound difference in values.
The main issue with the 19 inch spec is that for reasons I assume would be related to the sidewall height, Ford spec'ed an "extra load" tire fitment. Makes a difference in the way the tire responds to handling inputs so, be aware.