On my '09 Touring, the TMPS light comes on when the pressure gets down to about 215kPa (found that out when I developed a small leak). If temperature changes are tripping TPMS, your pressure is too low.
You'll find all sorts of opinions about using N2. It does have some minor advantages (less leakage, less moisture) but it's not really a big deal. Ie, fill 'em up with whatever is handy.
Edit: And the TPMS on my car will auto-reset after a few miles at the correct pressure.
Last edited by SouthArk370Z; 09-15-2013 at 04:29 PM.
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