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Old 10-10-2010, 01:24 PM   #1
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Tire Pressure Sensor Wrongly Going Off

17k miles on the Turbo X and the driver’s rear tire pressure sensor is showing low pressure, but my gauge is showing 36 psi. All four tires are around 36 psi. This is my first car with a tire pressure sensors, is this kind of thing common? Any other possibilities besides broken or dead battery? Anyone know the pressure threshold which sets off the sensors?
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Old 10-11-2010, 04:10 AM   #2
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They will set off if only off by a few PSI - however they are a common GM failure item. Take it to the dealer and let them diag it - probably needs a new sensor and a calibrate if it does not calibrate for them. This is what warranty is for - now go! lol
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Old 10-14-2010, 08:59 PM   #3
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Mine go off around 33psi. I don't know if that's wrong or not. I keep the tires with more pressure anyway because they ride better and more efficiently.

I would say 36psi shouldn't be causing the low pressure warning.
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Old 10-14-2010, 09:01 PM   #4
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I had a problem with these on an 05 Infiniti. Couple trips to the dealer for a reset and it never came back.
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Old 10-15-2010, 04:26 AM   #5
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I've found this problem Over & Over again with the Sports sedan monitors. The Fix from GM as of 08 was to set tham all to 40psi. They might have a New Better fix but 40psi has always worked for me.
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Old 10-15-2010, 06:39 AM   #6
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Originally Posted by Harvey's Autohaus View Post
I've found this problem Over & Over again with the Sports sedan monitors. The Fix from GM as of 08 was to set tham all to 40psi. They might have a New Better fix but 40psi has always worked for me.
This is what I did a few days ago. I set all tires to 40 psi. It then took a few days but the low pressure warning light eventually went off.
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Old 10-15-2010, 07:39 AM   #7
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May need a new sensor, we stocked these at Infiniti and they went from time to time.
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