Hi guys: I have this specific issue pop-up and wondered i can't be the only one...

During a long interstate ride, the tire pressures went from 34-39psu as the small display on the odometer shows. This is the display where you can toggle various informational data. each time you press "Display" it toggles to the next window eg miles driven after last refulling , mpg etc. However during the ride, I noticed a check tyre amber light turn on on the dashboard, ... assuming the TPMS was alerting me to an over/ under pressure on a tyre, I toggled over the display to see how much was the pressure to check why the amber light came on, but nothing! no display... just a blank window. I recycled through all windows a few times and all of them worked except the tyre pressure window.

The display is fine as i can toggle all other windows to show mpg, ave speed etc, but the tire pressure window is all black, shows nothing... what do you think is the issue? I hate going to the dealership if it ends up being something simple... I hoped restarting the car in the morning after it cooled down would self resolve the issue, but sadly no.

Also, I do NOT get errors on the display related to TPMS... just the blank screen plus amber light

Anyone see this before?

 

If you haven't changed the sensors for quite awhile it could be the batteries or sensors going bad, I have 2 sets of tires/wheels and put generic sensors one one set because the car can't accommodate 2 sets and get that blank screen for the pressures. Techstream can read the pressures but they wont display on that screen on the generic set. So, could be a few things.

 

Thanks, So should I just buy some "Denso 550-0103 TPMS 315-MHZ Sensors" or take it to Lexus? Not sure how else I can get access to techstream

 

As far as you know, the sensors are original? what year is your car?

I can't tell you for sure what is wrong with yours exactly, just a few suggestions. If it was my car I would wait till its time for new tires and deal with it then, I have gone many years checking my own pressures.

 

A national chain tire shop will likely have a TPMS sensor tool that will check all five sensors. If even one sensor is bad or has a dead battery, the car won't show any of them. While Denso sensors are recommended, a tire store who provides the sensors will warranty the entire job. There are a lot of fake sensors on the market. If you do buy them yourself, use a reliable source, like a national parts supplier. Having the tire store check the sensors will likely be free or low fee. If they're OK, then proceed to troubleshoot from there. If we were looking at the odds, it's likely you need 5 new sensors. Like Gerf said, you can wait until you need tire services and do it all at once.

 

2011... had it for 5 years, never changed the TPSM's .... how long do they last anyway?

 

Around 10 yrs they say, you're due for a new set sometime.

 

Makes sense then. Do I goto the dealer or order a set of 5 and replace them at Tirebarn? And what if that does not work?

 

I think you should take Swfla's advice on that one, take it to a good tire shop and get them to tell you if you have some bad ones...then it's on them. the sensors seem to be close on price wherever you go but the labor will be different. try to get Denso's.

 

Same symptoms on my 2010 last year. Replaced TPMS sensors at Costco for a few hundred dollars. I have heard bad stories about people getting them to register so did not want to mess with it.

 

I will go with this advice! Thank you all !!