the reading is 35 anything less than that the light comes on,, the dealer when i took the car in because of the light told me the tires were low,,
after i got home i checked with my gauge and all tires were set to 42 to 44 ,after two of the rough ride and no light i lowered the air to 32 got a light in less than 10 min,, don't care about the light any more,, i put a small peace of elect tape over the light no when people get into the car they just say how fast the car is and no one ask about the light they don't see. jim
note: when i have DR's on the light would come on any way.