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Tpms is saying to correct tire pressure on 2016 prime. Tire pressure was perfect when checked with an electronic pressure gauge. Could the tpms sensors have gone bad due to extreme cold weather weve been having? On the warmer days weve been getting here in nyc, the light is gone....
 

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What normally happens with the first cold spell is the tires lose pressure. The TPMS light comes on and, after correcting the tire pressure, we heed to reset the TPMS. That's covered in your owners manual.

If you haven't reset the tire pressures recently, there may be a TPMS glitch, but it will be covered under warranty. :)
 

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The extreme cold, could be effecting the batteries performance, in your tire sensor.


Most tire pressure sensors use lithium coin cells that perform very well in extreme cold. They typically have a shelf life of better than ten years.

Most likely this is a situation where the cold caused the air in the tires to contract. Adding air to he correct pressure should alleviate the issue. It happens all the time here in the snow belt of Upstate NY.
 

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Ideal gas law:

PV=nRT

T drops, P drops. I learned every 10 degrees is approx 1 PSI, but on the giuliaforums someone noted 12 degrees for 1 PSI.

Check and pump them to the proper pressure in the cold. Won't harm anything if they are a little high on warm days...
 
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