Join Date: Aug 2011
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The sensor will go off if you are more than a couple of pounds out of recommended pressure, whether it's too HIGH or LOW. Check proper inflation pressure in the label inside the sill of the driver door.
Whenever you set your pressure, you may have to drive for a few minutes before everything resets.
If your pressure is correct in all tires and the light won't go out, you may need to go to the dealer and have them recalibrate the system.
The nitrous line is BS. Air pressure is air pressure no matter what the gas. The only advantage nitrous gives is it won't oxidize the rubber and the tire will typically hold the pressure longer before needing more air.
It's not your guage or because your not using nitro. My car started doing the same thing. I took it back twice and its tough because aftsr you drive a while it goes away and then they don't see the problem. They checked the tpms and they all show good. They suggested I leave it over night so the can see it first thing in the morning when it happens. They offeres a loaner vehicle so I'm going to do it next week.
They filled mine with nitro when i bought it and when I checked my pressure it was at 29lbs. I think its a problem with the machine because its a wierd process. It drains the air out of your tires first and then fills it with nitro. The machine automatically inflates to a set pressure. They're looking into a possible calibration error with the nitro machine.
Nitro does everything they say but it does not change how the tpms reads. All they see is pressure. It doesn't matter if its 35lb of air, nitro, or meatloaf, its still 35lb.
I do encourage everyone to get one good reference gauge that cost more then $20. Its surprising how off some gauges are.
And to clarify, the tpms activates either when any one tire is more than 4lb off from any other tire and/ or when the tire pressure drops by 10lb from recomended inflation (35lb)
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