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Discussion Starter · #1 ·
Is there a way to adjust the threshold that triggers the TPS system to alert? Thanks in advance.

Keith
 

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No, the pressure point is fixed.
 

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Campfamily said:
Is there a way to adjust the threshold that triggers the TPS system to alert? Thanks in advance.

Keith
A couple of weeks ago, I was in Bigbear ant the tire pressure sensor went off at 39psi, am not sure if this was due to the weather or altitude, as I went down to lower elevation it did set itself up. :confused:
 

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Discussion Starter · #4 ·
ggeorgie said:
A couple of weeks ago, I was in Bigbear ant the tire pressure sensor went off at 39psi, am not sure if this was due to the weather or altitude, as I went down to lower elevation it did set itself up. :confused:
It has been cold around here lately (less than 50 deg is cold for me, LOL), and that is when we got the alarm. I have the Nav system, and so we checked the pressures that way, and the lowest was 36. When I got home, I checked the pressures manually, and they were all between 36 and 38. I pumped them up to 39, and the light went off.

My 04 didn't alarm until 27 psi, so I'm a bit surprised this one is going off so soon. I was hoping there was some way in the ECM that the threshold could be changed, even if it meant a trip to the dealer.

Keith
 

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Campfamily said:
It has been cold around here lately (less than 50 deg is cold for me, LOL), and that is when we got the alarm. I have the Nav system, and so we checked the pressures that way, and the lowest was 36. When I got home, I checked the pressures manually, and they were all between 36 and 38. I pumped them up to 39, and the light went off.

My 04 didn't alarm until 27 psi, so I'm a bit surprised this one is going off so soon. I was hoping there was some way in the ECM that the threshold could be changed, even if it meant a trip to the dealer.

Keith
My 04 goes off @32psi.
 

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one time on my way to cali all my tire are set between 34 to 37 then it went off. check them all are fine and still on so i lower the pressure down on all 4 below 35 and it shuts off. my ? is does the censor goes off if you have too much air?
 

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related question

The weather here in northern AZ dropped to single digits today, the tire pressure warning went off this morning. Is it possible for the lower temperatures to make enough difference to set the sensor off? Air expands and "contracts" with temperature but still....enough to set the sensor off?
 

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Mauno said:
The weather here in northern AZ dropped to single digits today, the tire pressure warning went off this morning. Is it possible for the lower temperatures to make enough difference to set the sensor off? Air expands and "contracts" with temperature but still....enough to set the sensor off?
The cold will lower the pressure in the tires and cause the alarm to go off.
 

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Discussion Starter · #9 ·
scr38 said:
The cold will lower the pressure in the tires and cause the alarm to go off.
But, it still shouldn't go off at 37 psi, cold or hot.
 

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I agree, sounds too high. Gotta ask; do you trust your pressure gauge and have you compared it to another one?
 

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Discussion Starter · #11 ·
Cillyone said:
I agree, sounds too high. Gotta ask; do you trust your pressure gauge and have you compared it to another one?
Didn't think of that, I guess when it matched what the Nav system said, I assumed it was right. I have another one somewhere, I'll double check it.
 

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Discussion Starter · #12 ·
Think I've figured it out. I was driving around in the Armada this weekend (usually, the wife drives it, I drive the Maxima), so decided to leave the tire pressure screen up on the Nav. I noticed that periodically, one of the sensors (the bottom one on the screen) would show 31 psi, then switch back to the correct pressure. When this happened, the light on the dash would come on, and the screen would show I had a flat tire. After a mile or so, the screen would go back to the correct pressure, but the dash light would stay on for five minutes or so. I checked the pressures manually, everything is okay. So, either I have an individual sensor going bad, or something is messed up in the receiver unit (not getting a reliable signal from one of the sensors). Oh well, we need an oil change anyway. Keith
 
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