wwalter Posted November 2, 2007 Share Posted November 2, 2007 Hi everyone, I got my new IS250 AWD in Jan this year. But since July my "Low Tire" light was on almost every one month. I took the car to the dealer, they said it happens b/c of the weather changes, and they just pump my tires or reset the sensor. Today the light is on again, I check the tire pressure and the lowest on is 27, the highest one is 30. Are they in the correct range? Thanks, Walter Quote Link to comment Share on other sites More sharing options...
tex2670 Posted November 2, 2007 Share Posted November 2, 2007 Hi everyone,I got my new IS250 AWD in Jan this year. But since July my "Low Tire" light was on almost every one month. I took the car to the dealer, they said it happens b/c of the weather changes, and they just pump my tires or reset the sensor. Today the light is on again, I check the tire pressure and the lowest on is 27, the highest one is 30. Are they in the correct range? Thanks, Walter No--correct pressures are labeled on a sticker in the driver's door jamb. 35F/37R. Quote Link to comment Share on other sites More sharing options...
sjgis350 Posted November 3, 2007 Share Posted November 3, 2007 Hi everyone,I got my new IS250 AWD in Jan this year. But since July my "Low Tire" light was on almost every one month. I took the car to the dealer, they said it happens b/c of the weather changes, and they just pump my tires or reset the sensor. Today the light is on again, I check the tire pressure and the lowest on is 27, the highest one is 30. Are they in the correct range? Thanks, Walter No--correct pressures are labeled on a sticker in the driver's door jamb. 35F/37R. Sounds like they are working properly. Air pressure should't drop 10 psi in a few months...Set the pressure when the tires are cold (like first thing in the morning). Check it in a day or two..if its dropping..you picked up something in the tire like a nail, etc.. Quote Link to comment Share on other sites More sharing options...
bartkat Posted November 3, 2007 Share Posted November 3, 2007 You have to watch the pressure on these tires closely. If you go more than a month wihthout checking they could be off. I usually find about a 2 PSI drop in that time period. Of course the change of seasons will change the pressure. I believe the pressure drops 1 PSI for every 10 degrees F drop in the ambient temperature. I think the sensors will set off the alarm with a plus or minus 4 PSI from the initialization pressure. Quote Link to comment Share on other sites More sharing options...
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