dealer said tire pressure monitor going off all the time is normal (WTF?)

[gc2488]

I saw the "LOW TIRE" display once,
on a cold morning very early after playing
basketball. I measured pressure right then
and saw about 30 psi on all 4 tires.
The LOW TIRE display went away after driving
a couple of minutes, without airing up the tires.

I have since aired them up to 35 psi;
I'll keep watching for the false sensor reading
again.

At what pressure threshold is the LOW TIRE
indication supposed to come on? I haven't
found this in the manual or seen it mentioned
here (but maybe I haven't been reading closely).

Thanks for the discussion!