Originally Posted by CrossfireLTD
Bobs is right...the TPMS will not come on when you have a over inflated tire. With that said the TPMS will come on when there is a 25% (8 lbs) pressure loss. Now if there a is combination of tires that equal 25% ( say...all tires are each 2 lbs low) the TPMS will trigger.
Just to clarify... TPMS will only light up if a total of 8 lbs loss - I assume that the 8 lbs loss is calculated from 4 tires @ 26 lbs. If 1 or more tires are over inflated (27 lb or more) that would not effect the TPMS.