TPMS - reset warning light?
#1
TPMS - reset warning light?
As I've seen on many cars before, on one of the first real cold mornings of the season, the air pressure can drop a little low in a tire from time to time. Yesterday was one of those days. So a warning shows up with low pressure in the right rear tire (39 psi). I quickly filled it to the point where the TPMS system on the dash shows it having actually even a bit higher PSI than the left rear, but the warning won't go away. I can clear the warning temporarily, but it just keeps coming back. I've read that the system should just reset itself with some normal highway driving, but after driving 20-30 miles yesterday at various highway and city speeds, turning the vehicle off/on multiple times, locking/unlocking, etc.... and after sitting in a warm garage overnight, still getting the warning
Is there any way to somehow manually reset this?
Is there any way to somehow manually reset this?
Last edited by drcoop; 11-14-2021 at 11:35 AM.
#2
#3
#4
Well it was an easy fix after all and I’m embarrassed. I should probably just delete this thread but possibly it will be helpful for someone else.
The number in parentheses under your current tire pressure is of course the recommended pressure and even though I was close I went ahead and filled up each tire to the recommended pressure and the warning disappeared. The warning must get triggered when it falls below a certain threshold and then needs to be brought as closely as possible to recommend psi for the warning to go away. Cheers
The number in parentheses under your current tire pressure is of course the recommended pressure and even though I was close I went ahead and filled up each tire to the recommended pressure and the warning disappeared. The warning must get triggered when it falls below a certain threshold and then needs to be brought as closely as possible to recommend psi for the warning to go away. Cheers
#5
About 20% less than the preset - the number in parentheses - usually is the threshold that triggers the fault, but it's not an exact science. If you routinely drive solo or with just a few passengers, and find that the default "Normal load" inflation settings yield an overly hard and uncomfortable ride, change the TPMS setting to "Light load" instead of airing up your tires.
Last edited by umbertob; 11-14-2021 at 12:32 PM.
#6
About 20% less than the preset - the number in parentheses - usually is the threshold that triggers the fault, but it's not an exact science. If you routinely drive solo or with just a few passengers, and find that the default "Normal load" inflation settings yield in an overly hard and uncomfortable ride, change the TPMS setting to "Light load" instead of airing up your tires.
#7
#8
Rotated tires last night, to rotate in the spare. Adjusted tire pressures for the relocated tires (33.8 in front and 38 in rear - light load pressures) and TPMS not registering this morning after drive to work - 15 minutes. We'll see if they figure themselves out on my way home. TPMS is such voodoo.
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11-17-2018 04:25 PM