Yes, I could ask this on ford-trucks.com. But I spend most of my time here. :)My 2013 F350 is my work truck. Its 4WD with manual locking hubs. Last week we had our first snow/ice storm of the season. I do a LOT of snow plowing whenever it happens in our area.Truck has 54,000 miles and is 2.5 years old. It does not plow. Only pulls the trailer with plowing equipment.Last week when the storm hit and it was time to go out and salt some more and plow, I engaged the manual locking hubs. I did not engage 4WD yet but knew I would eventually. Within seconds of heading out with the hubs locked in, the TPMS warning light came on. I checked all tires and all four were fine. At least 65-70 psi.For three days, we plowed snow and spread salt like crazy. The light never would turn off but we were busy so I had no time to even fool with it or have it checked. Probably did about 300+ miles like that.Sunday was our last day of plowing and the sun was shining brightly. It finally hit 50 degrees so on the way home from our last job, I disengaged the hubs. The TPMS light stayed on for maybe an hour and then it turned off. It has not come on again since last Sunday.Not sure how the hubs would have effected this but it sure seems more than coincidental. Any ideas?

Hubs should not have anything to do with TPMS.But temperatures can and will cause the tire pressure to fluctuate.65 PSI is the BOTTOM LIMIT of your vehicles tire pressure, if your tire is set to 65 at say 70F then it IS possible that the pressure will drop to 62 PSI at 20F which WILL trigger the TPMS light.My 2013 F250 triggers at 63 PSI and goes off around 70 PSI.For winter you NEED to ensure ALL tires are at 67-69 PSI at the ambient temps you have at the time in order to not get an alarm at 20F or lower.Running empty I keep my fronts at 69 PSI and the rears at 67 PSI and I don't get TPMS lights during winter.

Those sensors go bad and give a false alarm, I had one replaced when I was getting new tires.

agesilaus wrote:Those sensors go bad and give a false alarm, I had one replaced when I was getting new tires.OP has a 2-3 yr old vehicle, kind of doubtful that a sensor has gone bad in that time frame.. 5-6 yrs I could understand that since that is when the batteries are getting weak.I think in the OPs case, they are cutting the pressure too close for winter time temps..

The same thing happened to me after driving around in over a foot of snow in New Mexico. Air pressure was at 75/80. Four days at below freezing temps with hubs locked in, and having to use four wheel drive just to get out of the motel parking lot. 650 yards up a dirt driveway covered in over a foot of snow to my son's place. But the light and warning did not come on until about half way home after driving in even colder temps. minus 1 degree. I stopped and checked the air pressure twice. The light would go out and back on during the 500 miles to home. After the last fuel stop about 180 mile from home, the light never came back on. That's been over a month ago with no issues. I agree it had something to do with the colder temps.

Had a 2008 F350 and the tpms light would come on in cold weather. Warmed up a bit and it went away.

F350 TPMS Problem | Good Sam Community

lawnspecialties
Explorer
Jan 30, 2016
I will double check my pressures at the next storm. But it has been just as cold in the evenings since this past storm. Only real difference is I haven't had to lock in the hubs. No warnings at all.

If it doesn't do it again, I'll just wait until I see my Ford guys next time. Could just be one of those weird coincidences.
Jack_Diane_Free
Explorer
Jan 30, 2016
Had a 2008 F350 and the tpms light would come on in cold weather. Warmed up a bit and it went away.
msgtord
Explorer
Jan 30, 2016
The same thing happened to me after driving around in over a foot of snow in New Mexico. Air pressure was at 75/80. Four days at below freezing temps with hubs locked in, and having to use four wheel drive just to get out of the motel parking lot. 650 yards up a dirt driveway covered in over a foot of snow to my son's place. But the light and warning did not come on until about half way home after driving in even colder temps. minus 1 degree. I stopped and checked the air pressure twice. The light would go out and back on during the 500 miles to home. After the last fuel stop about 180 mile from home, the light never came back on. That's been over a month ago with no issues. I agree it had something to do with the colder temps.
Gdetrailer
Explorer III
Jan 30, 2016
agesilaus wrote:
Those sensors go bad and give a false alarm, I had one replaced when I was getting new tires.

OP has a 2-3 yr old vehicle, kind of doubtful that a sensor has gone bad in that time frame.. 5-6 yrs I could understand that since that is when the batteries are getting weak.

I think in the OPs case, they are cutting the pressure too close for winter time temps..
agesilaus
Explorer III
Jan 30, 2016
Those sensors go bad and give a false alarm, I had one replaced when I was getting new tires.
Gdetrailer
Explorer III
Jan 30, 2016
Hubs should not have anything to do with TPMS.

But temperatures can and will cause the tire pressure to fluctuate.

65 PSI is the BOTTOM LIMIT of your vehicles tire pressure, if your tire is set to 65 at say 70F then it IS possible that the pressure will drop to 62 PSI at 20F which WILL trigger the TPMS light.

My 2013 F250 triggers at 63 PSI and goes off around 70 PSI.

For winter you NEED to ensure ALL tires are at 67-69 PSI at the ambient temps you have at the time in order to not get an alarm at 20F or lower.

Running empty I keep my fronts at 69 PSI and the rears at 67 PSI and I don't get TPMS lights during winter.

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