re-initiallized tire pressure sensor?

[boaclub923]

ok, i just got my 10,000 service done.
i think they did adjust my tires pressure to standard value 32psi.
now, my tire pressure warning sign kicks in after 5 or 10 mins of driving...
i tried the re-intiallized steps on manual, but it doesn't work...
anyone get any idea?
or i just have to go back dealer and ask them to re-initiallized?

[michaels artic frost]

Are you still running stock or aftermarket rims and tires? With 20s, I know that I have to have more than 32 psi in order to keep my tire pressure light indicator from coming on.

[cdeez]

ok, i just got my 10,000 service done.
i think they did adjust my tires pressure to standard value 32psi.
now, my tire pressure warning sign kicks in after 5 or 10 mins of driving...
i tried the re-intiallized steps on manual, but it doesn't work...
anyone get any idea?
or i just have to go back dealer and ask them to re-initiallized?

My light never stays off... I have tried to re-initialize that thing so many times... (I have 20s), but even when I was rolling stocks that light was still always on...

its that drop baby girl...

[michaels artic frost]

ok, i just got my 10,000 service done.
i think they did adjust my tires pressure to standard value 32psi.
now, my tire pressure warning sign kicks in after 5 or 10 mins of driving...
i tried the re-intiallized steps on manual, but it doesn't work...
anyone get any idea?
or i just have to go back dealer and ask them to re-initiallized?

My light never stays off... I have tried to re-initialize that thing so many times... (I have 20s), but even when I was rolling stocks that light was still always on...

Cayan,

Have you checked the spare in the trunk? That's what happened to mine when I was still running stock. All tire pressure were fine except for the spare.

-M

[boaclub923]

i'm using stock SLE V6 tires.
it's lighting again today....
i guess i will go see dealer maybe this friday or next monday

[Lone Solara]

I believe the computer "learns" the pressure. It happened twice with my car. When I bought it new, the tire pressure light kept coming on almost every day, but then after about 1000 miles it started working normally. Then around 12000 miles, I had some serious service done, part of which was to replace 3 tires. And again, the tire pressure light started coming on every day several times a day. However, after about a month (about 1000 miles of driving) the light stopped coming on, and it works correctly now.

The dealer's solution was to try to replace the 4th tire (that one would have been on my dime), but I turned them down. My suggestion is to wait it out. Give it about a month or two, and if it doesn't correct itself, then go to the dealer.

[michaels artic frost]

ok, i just got my 10,000 service done.
i think they did adjust my tires pressure to standard value 32psi.
now, my tire pressure warning sign kicks in after 5 or 10 mins of driving...
i tried the re-intiallized steps on manual, but it doesn't work...
anyone get any idea?
or i just have to go back dealer and ask them to re-initiallized?

My light never stays off... I have tried to re-initialize that thing so many times... (I have 20s), but even when I was rolling stocks that light was still always on...

Cayan,

Have you checked the spare in the trunk? That's what happened to mind when I was still running stock. All tire pressure were fine except for the spare.

-M

WTF???? That thing monitors the SPARE also???? Damn...
No I have not checked the spare... I would have never thought to check that... thanks...

That's what the service tech told me back when I had the problem looked at. But that's been about a year a go now, everything is good on this end, thank God!

Up your tire pressure and see if that takes care of the prob. We've got the same profile tires, so that should take care of it. But let me know though.

[DocJohn]

Okay, let's set the record straight here (Source = 2004 Solara factory service manual)...

1. The tire pressure monitor system in the gen 2 Solara DOES NOT sense air pressure in the spare.

2. The tire pressure monitor system in the gen 2 Solara DOES NOT actually sense tire pressures at all, but instead senses rotational rates in each of the 4 wheels. This is known as an indirect tire pressure indicator (TPI) system. If one tire has a lower pressure than the others it will have a slightly faster wheel rotational rate and trip the “pressure” warning indicator light. The system does have a memory function and upper and lower limit thresholds too.

Some cars like Corvettes and even my Merc Mountaineer have a direct TPI system which consists of an actual lithium battery powered tire pressure sensor/transducers mounted inside of each wheel. In these cars you are actually sensing true tire pressure and some cars with this system give a digital read-out of each of your tire pressures on the IP.

[michaels artic frost]

Okay, let's set the record straight here (Source = 2004 Solara factory service manual)...

1. The tire pressure monitor system in the gen 2 Solara DOES NOT sense air pressure in the spare.

2. The tire pressure monitor system in the gen 2 Solara DOES NOT actually sense tire pressures at all, but instead senses rotational rates in each of the 4 wheels. This is known as an indirect tire pressure indicator (TPI) system. If one tire has a lower pressure than the others it will have a slightly faster wheel rotational rate and trip the “pressure” warning indicator light. The system does have a memory function and upper and lower limit thresholds too.

Some cars like Corvettes and even my Merc Mountaineer have a direct TPI system which consists of an actual lithium battery powered tire pressure sensor/transducers mounted inside of each wheel. In these cars you are actually sensing true tire pressure and some cars with this system give a digital read-out of each of your tire pressures on the IP.

^^^Thanks for the clarification DocJohn. I knew about the info above I just didn't know about the spare deal.^^^

-M

[L.A.solaraman]

Thanks for the info...

I do know that all 5 tires (including spare) have to be at the same pressure in order for the sensor to be able to be reset. To reset the sensor (located on the left side undernearth the steering wheel), just after starting your car, press the button for a few seconds and it will clear the icon.

If you still have a problem, take it to the dreaded dealer and tell them you filled up all 5 tires to the same pressure, you cleared the icon, and it keeps coming back on, then they should re-initialize it, or do whatever they do to it - I had to do it twice...

[DocJohn]

Thanks for the info...

I do know that all 5 tires (including spare) have to be at the same pressure in order for the sensor to be able to be reset. To reset the sensor (located on the left side undernearth the steering wheel), just after starting your car, press the button for a few seconds and it will clear the icon.

If you still have a problem, take it to the dreaded dealer and tell them you filled up all 5 tires to the same pressure, you cleared the icon, and it keeps coming back on, then they should re-initialize it, or do whatever they do to it - I had to do it twice...

Please explain to me how the tire pressure monitor system in the Gen 2 "knows" the pressure of the spare tire in the trunk? You must be reading from a different factory service manual than me, because the ones (4 volumes) I have indicate nothing of the sort. What's the source for this mis-information?

[drglitch]

Okay, let's set the record straight here (Source = 2004 Solara factory service manual)...

1. The tire pressure monitor system in the gen 2 Solara DOES NOT sense air pressure in the spare.

2. The tire pressure monitor system in the gen 2 Solara DOES NOT actually sense tire pressures at all, but instead senses rotational rates in each of the 4 wheels. This is known as an indirect tire pressure indicator (TPI) system. If one tire has a lower pressure than the others it will have a slightly faster wheel rotational rate and trip the “pressure” warning indicator light.

Are you sure about that? I believe its quite opposite actually - ie direct. Look at toyota's diag tool - for every tire [not sure about the spare] the computer gets fed temp, tire position [on car], psi, and rpm. - if either is messed up, it trips the light.

Dont believe me? Try the following:
Rotate tires - the light will come on and KEEP COMING ON UNTIL YOU DO A HARD RESET - the system must re-learn tire positioning.
Drive fast [90ish] on a dry road - depending on quality of air in your tire it will heat up too much and make system send an alarm [which goes off after it cools down]

LETS GET THIS THING STRAIGHT:
RTFM [read the fine manual ] - The system does NOT need to be reset on regular basis. That is the whole idea! As per user manual, the light will go off by itself once the tire is returned to normal pressure.
Soft-resetting it manually does nothing but remove the alert for 2-3 miles of driving.
After tire rotation or pressure adjustment you MUST DO A HARD RESET.
This includes playing with ignition key and holding the reset button for about 30 sec; then driving the car in a particular manner for about an hour - once again, RTFM [page 132 of user manual?]

Search for my other posts detailing this.

Follow the steps for a hard reset and you can too be tire-pressure-warning-light-free

Cheers, Vic