Now at about 2000 miles since purchased on 7/15.
Yesterday while driving in 90F weather the TPMS warning light suddenly came on the dash for tire pressure TOO LOW for the first time.
I checked the onboard dash reading and it indicates all 4 tires are at 36-37 psi range. I came home and again manually checked each tire using my own gauge and, indeed, they are all within 36-37 psi range. So, what the heck?
Anyway, went ahead and recalibrated/reset the TPMS by following the simple procedure on the dash menu followed by short driving as required. The TPMS warning light stayed OFF for now.
Any idea why the TPMS LOW pressure warning light came on when all 4 tire pressure readings are at the HIGHER end of the spec?

 

Did you check your tires at or just after delivery? I didn't but when I finally did (@2500) I found my tires were well below spec although the dash was reading them all much higher. As you did, I set them all with my gauge then ran the recal procedure. things are tracking well no (@5000). I think things are done at the factory and the dealers never check them. The whole ocean voyage bounces the cars around and maybe it messes things up.

 

You bet I did.
I checked tire pressure, coolant level, battery voltage, anything and everything under the hood as much as I could as soon as I got home - excpet the engine oil level because I couldn't find the damn oil dip stick! (well, had to rely on dash gauge).
Actually I raised the factory/deaelr set tire pressure from 32-33 to 36-37 psi the first day at home.
I just can't think of any reason why the TPMS would say "LOW" pressure when in fact it's at the "HIGH" end of the spec and after driving for 2000 miles with the same pressure reading.

 

If you weren't yet aware, there is no oil dipstick. You have to check the oil level through the menu.

 

Yes, I figured that out the first day I brought the car home from my selling dealer.
That's why I wrote...

 

Same thing happens to me in the MB.
Check the pressure, then re-set the TPMS.
Twice as much trouble for four times the expense.

 

Hello, have a 2006 Mini-Cooper S. Low tire pressure gauge has been lighted on dash for four months. Took to 2 foreign car mechanics - both said tire pressure fine. Both felt sensor shot. 1 quoted $250 to fix, other $65.00. Said no to both. Called Mini dealership and person said happens all the time. Gently pull out rubber rim around reset button and button near e-brake, disco from plug-in computer like plug. Remove piece and use rubbing alcohol gently while pushing button up and down. Dry off. Reconnect all. It worked immediately!!! Hope this helps with sticking reset button issue.

 

I realize we have different cars, and yours tells you the pressure mine doesn't. Mine tells me which tire is low. . It happened the other day, checked that tire it was 28 psi, added air and warning was gone, no reset needed. Maybe whatever tire it said was low has a bad sensor in it. I assume it said which tire.