Hmmmm...Is that true for the 2004s (and earlier) as well? I am looking at a 2004 and I don't see a Tire Pressure Monitor button listed in the owner's manual.

It seems that the minimum number of buttons is three: Hill Descent, DSC, and Open Lift Gate. PDC is optional and so are the two heated seats buttons. Wouldn't the Tire Pressure Monitor be a standard feature (or was it an option in 2004)?