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I believe that is incorrect (as does tirerack.com):
Originally Posted by Gumby
The pressure should be set when COLD always. I believe the manual (and possibly the door placard) says this as well. This allows it never to drop below the minimum pressure and allows for the increase in pressure that occurs due to heat from driving and normal warming in the afternoon. The tire pressure should be checked periodically to adjust for seasonal differences in cold temperature. The TPMS system works well in cold/hot climates by following the correct guidelines. If your light is coming on when it's cold it is because your tires are underinflated and you should increase the pressure.
2011 T & C Limited - White Gold/ - Dark Frost Beige/Medium Frost Beige
Every option except Towing Package
> 7,000 miles (had 1 on the odometer at delivery)