Low Tire Warning Light
Thread Starter
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Joined: Oct 2006
Posts: 537
Likes: 3
From: NJ
Low Tire Warning Light
It just came on for the second time in 6 weeks. Maybe I have a slow leak or something.
Anyway,the first time we took it to the dealer to have them clear it. Who knows how to clear the light yourself?
Anyway,the first time we took it to the dealer to have them clear it. Who knows how to clear the light yourself?
Lexus Test Driver
Joined: Dec 2005
Posts: 935
Likes: 2
From: NJ
Sometimes the cold weather causes the pressure to dip just enough for the warning lights to go on.
Mine came on, and I pumped the pressure to 32 psi. The light stayed on, but I didn't feel like pumping any higher. Some time during my 200 mile trip over the next day or so the light went out. I'm guessing they warmed up enough to make the pressure high enough to shut off the light.
If you think there is a leak, did you measure the tire pressures?
Mine is a 2006, BTW.
Mine came on, and I pumped the pressure to 32 psi. The light stayed on, but I didn't feel like pumping any higher. Some time during my 200 mile trip over the next day or so the light went out. I'm guessing they warmed up enough to make the pressure high enough to shut off the light.
If you think there is a leak, did you measure the tire pressures?
Mine is a 2006, BTW.
Thread Starter
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Joined: Oct 2006
Posts: 537
Likes: 3
From: NJ
No,I have not got around to it yet but I will try that tomorrow. The last time it happened,I filled 4 tires to maximum pressure.Wife took it to dealer but I forgot to fill the spare tire.That may have been the reason the light did not go off last time.I will check all 5 tires tomorrow.
Driver School Candidate
Joined: Nov 2008
Posts: 30
Likes: 0
From: Pa
Hey, what a coincidence I'm having the same problem and getting tired of it. I have checked all tires and the spare, all at 32 psi and the stupid light is still on. Its been a little while so I think it should have reset. Its not blinking either which indicates a malfuction, I think. Soon I'm going to disable it. Anyone know how to maually reset it (dissconnect the battery or something)?
Any suggestion other than a sledge hammer would be greatly appreciated.
Any suggestion other than a sledge hammer would be greatly appreciated.
Driver School Candidate
Joined: Nov 2008
Posts: 35
Likes: 0
From: TN
Mine did this once and tire pressures were OK...took to dealer. They fixed and explained that sensors had somehow lost their "programming"...they "re-programmed" them I guess. Car still under warranty, no charge. However, they did say that sometimes (and they did say this was rare) the actual sensors which are inside the tire can go bad. Each sensor is about $100. Also if you bought your car used, there are two settings for winter and summer tires for people up north, if you have the wrong setting this can trigger light to come on.
Thread Starter
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Joined: Oct 2006
Posts: 537
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From: NJ
Quick update.....wife took truck to dealer this morning....Tech looked at it quickly and said the sensor in the spare tire was bad.They are replacing it.They gave her an RX loaner. I keep telling her to ask for an LS460 but I know that will never happen.
Rookie
Joined: Nov 2004
Posts: 78
Likes: 0
From: Illinois
Don't Ignore!
My advice to everyone is not to ignore this warning light or assume it is a malfunction. This happened to me last January. I assumed it was cold weather, as I had just been to the dealer for regular service. I came back to a flat tire after leaving it in an airport garage for just two days. 
The tire was fine, best they could figure was a valve stuck when they checked/filled air in the tire.
On a brighter note, that was the first (and so far only) time that I called the free Lexus VIP service. They were wonderful, and it didn't take long for the tow truck to arrive.
The tire was fine, best they could figure was a valve stuck when they checked/filled air in the tire.On a brighter note, that was the first (and so far only) time that I called the free Lexus VIP service. They were wonderful, and it didn't take long for the tow truck to arrive.
Trending Topics
Driver School Candidate
Joined: Dec 2008
Posts: 1
Likes: 0
From: new jersey
tire light
many of you asked how to rest the tire light, u.s. gx470's to the right of the steering wheel under the dash on the lower kick pannel just above the gas peddel you will see the button to reset the light hold it for 5 seconds untill the light on the dash flashes ****Note if your tire pressure is + or - 5lbs of each other the light will not reset (i.e. if 3 of the tires are at 34lbs and 1 is 29 it will stay on or if 3 are at 34 and 1 is at 39 it will stay on as well.)
hope that helps you all
and remember keep us techs employed please call 1800-25-lexus for your roadside assistance needs
hope that helps you all
and remember keep us techs employed please call 1800-25-lexus for your roadside assistance needs
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Lexus Test Driver
Joined: Dec 2005
Posts: 935
Likes: 2
From: NJ
many of you asked how to rest the tire light, u.s. gx470's to the right of the steering wheel under the dash on the lower kick pannel just above the gas peddel you will see the button to reset the light hold it for 5 seconds untill the light on the dash flashes ****Note if your tire pressure is + or - 5lbs of each other the light will not reset (i.e. if 3 of the tires are at 34lbs and 1 is 29 it will stay on or if 3 are at 34 and 1 is at 39 it will stay on as well.)
hope that helps you all
and remember keep us techs employed please call 1800-25-lexus for your roadside assistance needs
hope that helps you all
and remember keep us techs employed please call 1800-25-lexus for your roadside assistance needs
Pit Crew
Joined: Apr 2009
Posts: 161
Likes: 6
From: WA
If all is working this should be an easy fix
My TPMS light would come on about every 30 days. Right front tire. It would drop down to 29 pounds. I would filll the tire up to 32# and in a minute or less the light would go off. turned out to be a brad in the tire.
Once the spare lost pressure down to 29#. Filled it up to 32# the light went off.
In the winter I put my snow tires and wheels on that do not have a sensor. Lights flashes ( of course), I put a piece of black tape over the light after removing the clear lens and the bezel. Light is blinking all winter, but I don't see it. After the winter put my wheels and tires on that have the sensors, take the dash apart, take the tape off and the light has gone off.
I think that the light will go out on its own if the tires are inflated to spec. My manual speaks to the button above the throttle as an A and b setting to accomodate two different sets of sensors.
Once the spare lost pressure down to 29#. Filled it up to 32# the light went off.
In the winter I put my snow tires and wheels on that do not have a sensor. Lights flashes ( of course), I put a piece of black tape over the light after removing the clear lens and the bezel. Light is blinking all winter, but I don't see it. After the winter put my wheels and tires on that have the sensors, take the dash apart, take the tape off and the light has gone off.
I think that the light will go out on its own if the tires are inflated to spec. My manual speaks to the button above the throttle as an A and b setting to accomodate two different sets of sensors.
Last edited by aljodoro; Oct 29, 2010 at 04:38 PM. Reason: addtion of info
Advanced
Joined: Mar 2011
Posts: 533
Likes: 4
From: PA
many of you asked how to rest the tire light, u.s. gx470's to the right of the steering wheel under the dash on the lower kick pannel just above the gas peddel you will see the button to reset the light hold it for 5 seconds untill the light on the dash flashes ****Note if your tire pressure is + or - 5lbs of each other the light will not reset (i.e. if 3 of the tires are at 34lbs and 1 is 29 it will stay on or if 3 are at 34 and 1 is at 39 it will stay on as well.)
hope that helps you all
and remember keep us techs employed please call 1800-25-lexus for your roadside assistance needs
hope that helps you all
and remember keep us techs employed please call 1800-25-lexus for your roadside assistance needs
Lexus Champion
Joined: Mar 2012
Posts: 1,812
Likes: 14
From: ★ᚱᚱ²²★
There's no reset button, the system will reset it self after a certain amount of miles and if it's within the correct PSI range it will turn off.
The button under the dash is an a/b switch to switch between summer / winter wheels and tires.
The button under the dash is an a/b switch to switch between summer / winter wheels and tires.
Advanced
Joined: Mar 2011
Posts: 533
Likes: 4
From: PA
That was also my understanding of the a/b switch. What is frustrating me is that I aired all my tires up to 32psi and drove about 7 miles so far but the damn light wont go out. I know its a simple thing, but its infuriating me, especially as Im getting ready to sell the car and now this damn "warning" light wont go out! Then I read this guys erroneous post about a non existent reset button, followed with a "and remember keep us techs employed please call 1800-25-lexus for your roadside assistance needs" and my face is practically red from anger, lol!