Nothing wrong with TPMS. Fluctuations in Temps between morning and afternoon is the cause. They're probably a little low. Check pressure with a trusty gauge and air to 32 in the morning. Light will stay out.

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Nothing wrong with TPMS. Fluctuations in Temps between morning and afternoon is the cause. They're probably a little low. Check pressure with a trusty gauge and air to 32 in the morning. Light will stay out.

Ditto... or even 35psi

The TPMS triggers when there is 10psi difference between any two tires, or when any tire drops below the setpoint, which I believe is 25-28psi.

Similar with brake fluid.
When the light comes on, it does NOT mean that you need to add fluid (unless you have a leak)... it means your pads are worn and in need of replacement.
It will first illuminate on cold mornings, then go out as the brakes and fluid warm up.

 

what PSI reading are you getting from your TPMS? just scroll to the screen, take a pic and show us here.

 

How do you find that?

 

You can check the TPMS on your gauge cluster by scrolling down with the menu button on your steering wheel.

The tire PSI will fluctuate based on outside temperature. Colder weather will cause the PSI to drop in your tires compared to hot weather where it will raise your tire PSI.

I would add 2 more PSI in each wheel if it bothers you too much.

Come on guys, don't be condescending when a guy who doesn't know much asks a simple question.

 

The reason why I say 32 psi is because when the tire heats up, the pressure will increase at lease 3psi

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The reason why I say 32 psi is because when the tire heats up, the pressure will increase at lease 3psi

Personally, I run 40 cold, but the ride is a bit rough for people used to a more "cushy" experience. I've driven pickups since the mid 90s so it doesn't bother me, and it improves mileage and tire life.

 

I actually just pulled the trigger on mine last night. Woke up this morning; same situation as you. The light went away after the tires warmed up though. I will make sure the dealership pressured them up properly.

 

2018 SE here, purchased August 2017. Prior to this morning, the TPMS light had only come on once before. That was several months ago, so I can't recall the exact circumstances, but all I did was fill up the tires with air which resolved the problem.

So when I got in the car first thing this morning the TPMS light was on. I wasn't that surprised, it's been getting colder the last week or so, and it was in the 40's this morning. I just assumed the temperature drop had caused the corresponding tire psi drop. I checked TPMS on the gauge and it showed 32 for all four tires, but on 3 of the tires the "32" was highlighted yellow.

After driving and making one stop this morning, got back in the car a couple hours later, and the TPMS light was no longer on. TPMS on the gauge showed the following for all four tires: 33, 33, 33 and 34, and nothing highlighted yellow any longer. I stopped into Discount Tires anyway, and had them fill the tires to 35 psi. After that the gauge showed the following: 35, 35, 35 and 36.

So my experience is similar to the OP, where the TPMS light came on first thing in the morning and then went away after driving 10 miles or so. What I did was go ahead and put air in the tires to prevent the light from coming on again in the morning.

 

Air density INCREASES 25% from the boiling point down to the freezing point of water. If the ambient temperature decreases by 90 degrees the same volume of air at the same pressure will loose 12.5 % of it's pressure, even if the tire-wheel assembly is perfectly sealed, which it seldom is.

Bottom line, if you bought the car when it was 100 degrees and that temperature drops to 10 degrees the air pressure in the tires will drop by 12.5 percent or 5 psi at 40 psi, enough to give you a TPMS warning light.

If you see a dash display that reads consistent pressures for all 4 tires then you do not have a leak of any significance. Some newer cars like my wife's Rogue will tell you the pressure of each tire. Use that knowledge and you can be preemptive in finding the slow leak, before it gets too bad. It's totally typical to see pressures drop when colder temperatures come. It's also typical to have to add some air to tires occasionally.

I run 48 psi cold in my tires, last tank in my 18 year old Echo was 57 MPG average for 386 miles. at 158k miles on the odometer. My Mini Cooper 15x5.5 Imola wheels weigh 12 pounds a piece.

My wheels were meticulously cleaned, where the tires seat on the beads, which is generally not done when tires are replaced. I have actually seen the tire pressures GO UP in spring here in Virginia when temperatures can rise 20-50 degrees in a matter of days. MY car has no TPMS system, being 18 years old, but generally beats all hybrids in average mileage. A little over a year ago I hit 30k miles in my 2015 Mirage on $1000 in fuel, at 3.3 cents a mile fuel cost, barely more than you would pay for electricity driving a Tesla. I bought the Echo to keep the odometer reading down so my 10-100 warranty will last 10 years.

My Echo has manual steering, so with the engine shut off regardless of my speed, steering effort is the same.

 

Air density INCREASES 25% from the boiling point down to the freezing point of water. If the ambient temperature decreases by 90 degrees the same volume of air at the same pressure will loose 12.5 % of it's pressure, even if the tire-wheel assembly is perfectly sealed, which it seldom is.

And compounding the temperature difference is the heating impact beyond ambient of the tire itself related to inflation pressure, load, and speed.
Higher speeds and loads require higher pressures to avoid heat rising to damaging levels.
From a 60 degree morning startup to a 95 degree trip on the freeway at 45mph :facepalm: my pressure goes from 42 to 45... pretty consistent anywhere above 80 degrees.

 

I stick with the mfg's spec of 35psi cold and have never had any issues.



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Tire rotation and sensors

If I rotate my tires how do re-assign the tires to the correction position on XLE display?

 

If I rotate my tires how do re-assign the tires to the correction position on XLE display?

You don't need to reassign anything. Rotation is completed just from to rear. If the tire pressure is low in the front and you rotate to the rear, it will display it low in the rear.

https://www.tiresplus.com/tires/tire-buying-guide/tpms/

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Wouldn't make sense for the LE not to have it because the LE and SE have the same basic safety features. Tire pressure monitoring is a safety feature.

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Wouldn't make sense for the LE not to have it because the LE and SE have the same basic safety features. Tire pressure monitoring is a safety feature.

May not make sense, but.....

 

What about the XSE I4? Doesn't even show that one and it had direct read out. Or you just didn't to that page or section?

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What about the XSE I4? Doesn't even show that one and it had direct read out. Or you just didn't to that page or section?

Only had 3 columns, since we were comparing SE to LE (since you stated that your XSE and SE have it) I didn't bother to replace the V6 XLE model with the I4.


But since you asked... same story:

https://www.toyota.com/camry/features/mpg/2540/2548/2532

 

I guess more investigation will have to come into play. Either I'm going to stop someone with and LE or go to the dealership

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I guess more investigation will have to come into play. Either I'm going to stop someone with and LE or go to the dealership

That came right off of the Toyota web site.
Pretty sure they know what they are offering

 

I'm gonna confuse this even further. Again, mine is a 2018 SE model, not the 2019. I originally asked how to access the TPMS menu because I had already tried to find one before I even posted here. The reason being that SOMETIMES on startup I get a tire pressure warning screen on my small 4 inch screen . It would come and go out real quick before I have a chance to see what the warning is relating to. This morning I was able to catch it before it went out and it revealed that the front driver side tire is low on air. The weird thing is this screen doesnt come on everytime I have the low pressure tire icon on the dash and It will only come on the first time i crank it in the morning.It only shows the affected tire but not the pressure.Also, since I have THAT screen that pops up on start up you would think I would have the full TPMS menu on the bigger screen unless this is a alternate version for cars that don't have the full tpms menu system.

 

There is a menu that will show the the individual tire pressures in the dash. The reason it won't show them initially is the the car needs to be driven at least a quarter mile and then the pressures will show up.

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Excellent!

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I have a '17 and '18 SE. I've never gotten a TPMS warning on either vehicle. I check tire pressure(s) regularly (bi-monthly at a minimum) and keep them at mfg. specs. Is it that hard?




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Well good for you! Not everyone is as deligent as you are thus there is a reason the TPMS monitoring system exist.

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Is it that hard to check and maintain tire pressure(s). When persons post that their TPMS light is on in the morning and then goes away they need a slap upside the head or are just plain stupid. Check your tire pressure(s) when cold. What does TPMS tell you? Adjust to mfg. spec. DUH!!


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Maybe you should slap yourself upside the head as if you know everything. You sound like a whack forum troll looking to start trouble. The person got the help they needed and it's done. Now you can go back to whacking off while scouring forums looking for something to do. With your 48 measly posts, it surely shows you're not very active nor do you help others or give good advice.

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Maybe you should slap yourself upside the head as if you know everything. You sound like a whack forum troll looking to start trouble. The person got the help they needed and it's done. Now you can go back to whacking off while scouring forums looking for something to do. With your 48 measly posts, it surely shows you're not very active nor do you help others or give good advice.

Here's advice for persons who wonder why their TPMS light is on in the morning - Check you tire pressure. I know it's very difficult to push a button two or three times.
Here's advice for you asshole - Go fuck your self

 

I've even read done of the posts you've started and nobody was giving you $@!t when you posed your questions. They genuinely tried to help you so you should just be quiet. It shows you don't know everything and reach out for answers just as they have.

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