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Old 11-15-2013, 13:21   #1 (permalink)
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Question about Ford Fusion TPMS sensor

Does the LOW TIRE PRESSURE sensor light turn on if the tire pressure is too HIGH?

I have a 2012 Fusion SE and I am a little paranoid about the Low Tire Pressure indicator light. Last month it turned on and I inspected my tires and found damage so I had to replace one. So when it turned on again when I was on the Freeway I looked at my tires and didn't find any damage so I took it to my Dealer. They didn't find any damage either and my service rep told me he set the sensor a couple of notches higher. I didn't really think about what that meant until I got home. The indicator didn't turn on until I was on the Freeway, which I don't use very much - I assume that means that the tires had heated up a bit - but that would mean that the pressure had gotten HIGHER not LOWER. But the Indicator said LOW TIRE PRESSURE. So I guess that means the sensor turns on with EITHER low or high tire pressure but the the Indicator light ALWAYS says LOW TIRE PRESSURE? And what the Service Rep told me seems to back that up but I just want to make sure.

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Old 11-16-2013, 15:17   #2 (permalink)
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Re: Question about Ford Fusion TPMS sensor

" Does the LOW TIRE PRESSURE sensor light turn on if the tire pressure is too HIGH? "



Could be wrong , but think it only means what it says .If it was affected by Freeway / heat , there would be millions of cars under the same conditions with the warning light on ?
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Old 11-16-2013, 19:18   #3 (permalink)
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Re: Question about Ford Fusion TPMS sensor

I thought uneven pressure could also set it off.
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Old 11-18-2013, 01:40   #4 (permalink)
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Re: Question about Ford Fusion TPMS sensor

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I thought uneven pressure could also set it off.
That might be it. I did have to get a new tire last month and I wonder if they bothered to equalize the tire pressure on all my tires.
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Old 11-18-2013, 01:54   #5 (permalink)
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Re: Question about Ford Fusion TPMS sensor

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Originally Posted by R.S.LOGAN View Post
" Does the LOW TIRE PRESSURE sensor light turn on if the tire pressure is too HIGH? "



Could be wrong , but think it only means what it says .If it was affected by Freeway / heat , there would be millions of cars under the same conditions with the warning light on ?
Well having lived in NY for most of my life, the 2012 Ford Fusion I bought was the first car I had since 95 so quite frankly all these computerized warnings confuse the heck out of me. My brother-in-law is a car fanatic and has 6 cars that he fools around with all the time so I asked him about this as well and he says Low Tire Pressure means Low Tire Pressure, NOT high. He also does not know why the Dealer would set the Pressure warning higher. Anyway he is going to visit in a couple of weeks and wants me to get an Air Compressor and Gauge and he will look at it. Now I just have to figure out what the amperage of my Fusion's cigarette lighters are since there are all sorts of warnings about having the proper amperage rating or the Compressor may blow out my fuse. I don't remember owning cars to be that complicated but then the last car I had was a 93 model so I guess a lot has changed.
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Old 11-18-2013, 13:35   #6 (permalink)
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Re: Question about Ford Fusion TPMS sensor

The newer the car , the harder for DIY guy .
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Old 11-18-2013, 15:36   #7 (permalink)
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Re: Question about Ford Fusion TPMS sensor

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The newer the car , the harder for DIY guy .
Yeah and I now have to deal with PC as well. I found the section in the Owners manual that lists each fuse and what the amperage was but there was nothing in the list about the Cigarette Lighter. In fact the there was no reference at all about the Cigarette Lighter - it took me a while to figure out that they renamed it the Power Point.
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