Did it go off again when you put air in the tires and reset the TPMS?

 

I didn't reset anything on mine. When we got the first cool front, the pressure changed in the tires and that's common to loose pressure when they get cool. Added 4lbs and the light went off. Hasn't been on again since. No need to bring it to the dealer for low tire pressure, just add some air.

 

remember to check spare also, I know on my Tacoma it has the sensor also

 

I had the same problem as THatch. It got cold at night and the light came on but I could reset it in the middle of the day and it was fine. Once it got to the point where it stayed cool day and night I adjusted the tire pressure and now have no problem. And I also agree, no need to take it to the dealer.

 

Can't wait to bring this to the dealer.

What is that supposed to mean?

The system is working exactly as it is designed to. It is warning you about pressure being low in one of your tires. Add air and be done with it. If you get tired of having of having it come on and off due to a lot of climate change then put nitrogen in them.

Where I live it goes from 80 - 32 then back to 75 in a weeks span. It was enough to cause my low tire warning to go on and off everyday since it kept being warm in the day and cooler at night.

I know a guy that owns his own tire shop and he put nitrogen in. No more fluctuation in air pressure.

 

The warning light came on a couple days ago. I checked all the tire pressures and they were a little low in the back according to the manual. I don't think they were low enough to set off the warning. Can't wait to bring this to the dealer.

Has anyone else had this problem? (BTW this is the first problem I've had.)

I had the same problem happen to me about a month ago. Took it to a tire shop and they said the tire pressures were fine. Tried to do the rest as the owner's manual said of push the rest button under the dash and this didn't fix the problem. I took my truck to Toyota dealership and they had to rest the computer with a handheld scanner. Haven't seen the light come on again. Problem fixed. Good luck.

 

Back when I took the truck to the drag strip I lowered the pressure in the rear wheels by 10psi. I never noticed the warning light come on. Maybe my truck just doesn't care, it's bad like that.

 

The TPSM went off on my RX330, but that's because I had a nail in the back tire and it was losing air, so it worked as designed. On thing I wish my RX330 and the Tundra had was actual read outs of tire pressure per wheel. My 05 350Z had a read out of pressure for each wheel.

 

How many lbs. does Toyota recommend having?

 

I lowered my pressure to about 30, pressed the reset button then pumped the tires back up to 35 where I keep them. The monitor doesn't bug me since it has to go below 30 now to set it off.

 

The correct pressure according to the book is 30 lbs in the front and 33 in the back. The reason I said I can't wait to take this to the dealer is because I had already put air in and pressed the reset button...

 

Even though the book says 30/33 psi, I find that too low. The truck seems kinda sluggish at that level. 35 seems to work well for me. I have the TRD Rugged Trails currently.

 

I had the same issue with the cold weather, it hit below 30 degrees here a few times over night so the light came on...then it would reach about 60 and it would turn off. checked all the tires and reset several times, light still came back on. When I took it to Toyota early last week, all the sensors checked out fine....so they deflated the tires and filled them with nitrogen, reset, and the light has not been on since.

 

You need to haave at least 35 psi all the way round you want your tires to be solid on the road.Real low air in the tires can cause you to burn more gas all so if youtake it
in check the spare and all the tires for nails at the dealer but the truck is doing what it is
suposed to do and plus you don't wan't it to get low where it is unsafe that why the light
comes on if you loose air even just a little.

 

I didn't reset anything on mine. When we got the first cool front, the pressure changed in the tires and that's common to loose pressure when they get cool. Added 4lbs and the light went off. Hasn't been on again since. No need to bring it to the dealer for low tire pressure, just add some air.

+1 exact same thing with mine.

 

The correct pressure according to the book is 30 lbs in the front and 33 in the back. The reason I said I can't wait to take this to the dealer is because I had already put air in and pressed the reset button...

That's not the reset procedure. As described in the owner's manual, you have to hold the reset button in for several seconds, waiting for three flashes of the light, then wait 3-6 minutes. What's not in the owner's manual is that the pressure has to drop 7 psi to activate the light.

Personally, I overinflate, reset per the book, then drop down to my desired pressure. I would rather know sooner than later that my pressure is falling.

Following the instructions in the manual, I have never had a false light. With both the Tundra and my Frontier before, TPMS has been very useful giving an advance warning of a leak off-road, giving me time to find a good spot on the trail to fix the problem.

I agree with the other poster who said it would be better to have a dash readout of the individual tire pressure like many GM and Nissan vehicles do. I have hooked up the Toyota scanner, and the individual pressures are there. Toyota has just chosen not to display the info to the driver, other than a warning light when the pressure drops by 7 psi.

 

(I should clarify) Sorry, I held the reset button... You guys are good! Although I wish it fixed the problem. I do need to check the spare...

 

Well, I didn't have to hold the reset button. But I did add air the following morning the low pressure light came on. Checked the pressure, filled the tires then started the truck up and no light.

 

The warning light came on a couple days ago. I checked all the tire pressures and they were a little low in the back according to the manual. I don't think they were low enough to set off the warning. Can't wait to bring this to the dealer.

Has anyone else had this problem? (BTW this is the first problem I've had.)

Had the same thing happen and the pressures were fine but the dealer found a screw in one of the tires...

 

You should check your spare, but it won't make a difference, there isn't a sensor on it. My TPMS light come on almost every morning when its freezing or below, and I have my tires filled at 35psi. Check them and they are fine. I'm not sure if this is what the TPMS TSB was about...

 

My tire pressure light went off a few weeks back. It turns out that I had a long nail in my right rear tire and a very slow leak. I noticed the tire looked a little low and put more air in bringing it up to the proper pressure and it was fine for about two days, then I was doing my usual walk around the truck before getting in it and I heard "hissing". It just so happened that the way the tire rolled to a stop I could see a nail head down between the tread. So I took it to a tire place and had it patched.

I never knew this before, I think there are levels (or something like that) on the axle areas that relay when the tires are low... I always thought there was a hose or something connected to the tire itself...

 

(I should clarify) Sorry, I held the reset button... You guys are good! Although I wish it fixed the problem. I do need to check the spare...

Did you read what I wrote before?

Thanks,
Brian

 

I never knew this before, I think there are levels (or something like that) on the axle areas that relay when the tires are low... I always thought there was a hose or something connected to the tire itself...

The info in the link below was written for GM, but is similar to the Toyota system.
Tire Pressure Monitoring System Information


Toyota:

42607-35010 - TPMS Required for ALUMINUM WHEELS Parts and Accessories

http://www.tundrasolutions.com/foru...tachments/tundra/24060d1190828573-tire-pressure-sensor-ecu-failure-tirepres.pdf


There is no sensor in the '07 spare tire...it's in the Owner's Manual. It also states they may not work in snow, ice, or with tire chains.

 

I had same problem on my new Tundra. I live in Phx, so we haven't had much cold weather, I had the problem all summer long, with nightime temps never falling below 90D. Checked my tires, everthing was ok. I just ignored the light. It would never come on until I had driven for about 10 min.

Went to dealer, he said make sure I check the spare tire. I checked the spare, it does not have a sensor valve on it.

Sorry I coulnn't do much more than affirm your problem, it is apparently not just you.

G

 

MyLordTundra,
I had read what you wrote and found it pretty helpful. I'm going to bring it in to get reset at the dealer.

Thanks!

John