how low does your tire pressure have to be before it goes off? Also what kind of warning do you get? Does the light just flash on the dash or does it beep? I noticed my tires were low because I was screeching while pulling into a parking spot. Factory settings have pressure at 35psi for front and 37psi for rear on the AWD I believe. My fronts were at 33psi and back was at 36psi or so. Would that not be low enough to trip the sensor?

 

My warning came on at 30psi; there is an amber tire symbol on the right side of the gauge cluster and a red warning triangle that comes on in the center of the console below the dialog window that tells you the outside temp and all that stuff, it will also say low pressure. After a few minutes the red triangle will stop blinking and will just stay on with the yellow tire symbol.