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Discussion Starter #1
how long are the batteries good for? my car is 9 years old and only has 33k miles on it. if the light should come on and the tire inflation is good then it must be the battery but how can you determine which one? these are the first TPMS i have ever had
 

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Most tire places can use a hand held device that will activate the TPMS sensor and see if it is working. Te published life of the batteries is 5 years, but I bet that depends how much they are being used.
I believe they say to replace them when you mount new tires, or at least do a 'service kit' that replaces the rubber components and valve nut.
 

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I just replaced my sensors on another of my vehicles.The vehicle, is 6 years old. I don't know how sophisticated the smart system is. You should be able to pull a code up. That code should let you know which sensors battery is dead. You can live without the sensors. Replace them at the next tire replace. Just make sure, you keep your tires inflated to the correct pressure. Remember the old days, before sensors.
 

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Discussion Starter #4
thanks, I had considered a standard tire valve when tires are put on (i'm pretty good at keeping tire pressures up and I always get the Discount tire pkg for lifetime rotate, repair and tire pressure check/adjust
 

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thanks, I had considered a standard tire valve when tires are put on (i'm pretty good at keeping tire pressures up and I always get the Discount tire pkg for lifetime rotate, repair and tire pressure check/adjust
You likely won't get a major chain store to put a standard valve on since that would be deliberately disabling a safety system and they would be liable down the road if something were to happen due to that safety system being inoperative.
 

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Discount Tire sells tire/wheel lifetime balance. Rotations, repairs (the simple type of nails/screws), and pressure checks are always free, at least at sister company America’s Tire here. Be careful of similarly named shops like Discount Tire Centers, American Tire Depot, etc....
 

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The batteries typically installed in TPMS sensors are typically lithium coin cells with a rated shelf life of 10 years. That does not mean they will last the entire 10 years, but if stored on the shelf, the internal battery resistance will not drain the cell lower than the useful voltage. If I used, lithium cells in storage can last much longer.

If I’m not mistaken, the pressure sensor in the tires is VERY low current drain and should provide approximately 10 years of usable life. That being said, I have a 2005 Nissan Armada with the original sensors in two of the tires, one new ones in the other two, both replaced in the past year. YMMV.
 

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Anyone know which tire sensor 3 is located? I get a solid TPMS light and DTC d164 "Communications with tire pressure sensor 3 has a malofunction". Yes that is how the reader spells malfunction.
 
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