Cold temperatures reduce the pressure, and since air leaks out of tires naturally over time, it is quite common for the change in temperature to suddenly put your tires below the threshold for normal tire pressure.
The cold weather compresses air which reduces the pressure… there no need for a leak for this to take place.
As soon as the day warms or the tires warm (with use) the pressure returns… it’s a pain the ass and I have yet to find a proper source that explains what the proper thing to do is.
I just top up my tires in a cold morning, and now they run 4 psi over the mark when they warm up.
Yes, if the tires were close to the cut off before the temp dropped. The sensor in my vehicle readstire pressure about 10% low in colder weather, which can be enough to trigger the warning on chilly mornings if I haven’t topped it off during the summer.
It’s only normal if you’ve been neglecting to check your tire pressure on a regular basis. Unless you live in a place with a massive yearly temperature differential, properly inflated tires won’t lose enough pressure to trigger the TPMS light once temps drop in the autumn.
Prevent a blowout: please stay on top of your tire pressure, people. Check it at least once a month.
I think you need to check your definition of “massive”. Coming from the opposite perspective, I assumed that essentially everyone sees this when the season turns.
Question for the Lemmings down under: is fall/autumn when it gets cold or when the calendar says October? What season do you call it when the weather turns cold? Or does it just not?
So where I live it gets as low as -40 in the coldest days of winter and in the summer it usually tickles about 100F. October is usually when the nightly cold weather starts, with lows in the 40s or so, and it just takes progressively longer each day for the day to warm up (and therefore the high temps drop over the course of the month) and usually November/December is when the temperatures are below freezing more often then not (with January/February being the peak of winter and when we get snow that lasts until the thaw in late March/early April
I don’t bother with snow tires because we really don’t get much snow where I live anymore. Maybe like a foot total each year, so I just get all-season tires which I leave on year round. Only times my tire pressure drops noticably is when we have the one week of -40 each year and that’s when my pressure can drop low enough to trigger the warning lights, but it doesn’t even happen most years. I also really don’t top off my tires often at all. Maybe like once a year when I feel like they need it but otherwise they tend to stay fine (maybe the shop tops them when I get my oil changed? I should ask about that…)
Where I live is nowhere near that but we do have distinct seasons. Similar to what you said I don’t bother with snow tires because we don’t get much and all the towns are really good about clearing it. However it’s warm enough that we don’t get snow that stays through winter. Any how, seems like I get these warnings about every other year
But yes, a lot of shops check and adjust tire pressure when you get oil changed.
Is it normal for tire emergency lights to come on in autumn?
Just the low tire pressure warning.
Cold temperatures reduce the pressure, and since air leaks out of tires naturally over time, it is quite common for the change in temperature to suddenly put your tires below the threshold for normal tire pressure.
The cold weather compresses air which reduces the pressure… there no need for a leak for this to take place.
As soon as the day warms or the tires warm (with use) the pressure returns… it’s a pain the ass and I have yet to find a proper source that explains what the proper thing to do is.
I just top up my tires in a cold morning, and now they run 4 psi over the mark when they warm up.
We usually get a big enough quick drop in temperatures that I get this each autumn. Even with new tires
Yes, if the tires were close to the cut off before the temp dropped. The sensor in my vehicle readstire pressure about 10% low in colder weather, which can be enough to trigger the warning on chilly mornings if I haven’t topped it off during the summer.
Heat up gas => pressure go up
Cool down gas => pressure go down
pV=nRT
♥️
My winter rims don’t have sensors because those cost money.
I live somewhere that I can’t get away with all season tires from late October until late April.
Same
It’s only normal if you’ve been neglecting to check your tire pressure on a regular basis. Unless you live in a place with a massive yearly temperature differential, properly inflated tires won’t lose enough pressure to trigger the TPMS light once temps drop in the autumn.
Prevent a blowout: please stay on top of your tire pressure, people. Check it at least once a month.
I think you need to check your definition of “massive”. Coming from the opposite perspective, I assumed that essentially everyone sees this when the season turns.
Question for the Lemmings down under: is fall/autumn when it gets cold or when the calendar says October? What season do you call it when the weather turns cold? Or does it just not?
So where I live it gets as low as -40 in the coldest days of winter and in the summer it usually tickles about 100F. October is usually when the nightly cold weather starts, with lows in the 40s or so, and it just takes progressively longer each day for the day to warm up (and therefore the high temps drop over the course of the month) and usually November/December is when the temperatures are below freezing more often then not (with January/February being the peak of winter and when we get snow that lasts until the thaw in late March/early April
I don’t bother with snow tires because we really don’t get much snow where I live anymore. Maybe like a foot total each year, so I just get all-season tires which I leave on year round. Only times my tire pressure drops noticably is when we have the one week of -40 each year and that’s when my pressure can drop low enough to trigger the warning lights, but it doesn’t even happen most years. I also really don’t top off my tires often at all. Maybe like once a year when I feel like they need it but otherwise they tend to stay fine (maybe the shop tops them when I get my oil changed? I should ask about that…)
Where I live is nowhere near that but we do have distinct seasons. Similar to what you said I don’t bother with snow tires because we don’t get much and all the towns are really good about clearing it. However it’s warm enough that we don’t get snow that stays through winter. Any how, seems like I get these warnings about every other year
But yes, a lot of shops check and adjust tire pressure when you get oil changed.
It’s only normal if you’ve been living in an area when temperature drops significantly.
There FIFY
But tpms means the car tells me when the tyre pressure gets low?