RX - 2nd Gen (2004-2009) Discussion topics related to the 2004 -2009 RX330, RX350 and RX400H models

Tire Inflation light

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Old 07-09-07, 01:22 PM
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initiald15
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Default Tire Inflation light

My tire inflation light came on yesterday. I pulled over and check my tires and they are fine. Turn the car off and turn it back on... lights was off and been driving til today and still off! Is there anything wrong with my tires? I was driving from Sacramento which was over 100 degree in temperture?
Old 07-09-07, 01:26 PM
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mandyfig
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Do you have a 330 or 350? What year?
Old 07-09-07, 01:26 PM
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RXSF
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i had that problem once. The light came on blinking and then went off, then acme on a few days later. I left it alone but when i went in for a service a week later, they told me there was a small nail in the tire. I didnt even check the tires when the light came on, but yeh, so perhaps you should let a mechanic check the tires.
Old 07-09-07, 01:40 PM
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initiald15
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I have a 2004 rx330
Old 07-09-07, 02:02 PM
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mandyfig
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Here's a method to check if your TPWS needs re-setting or re-initializing (of course, if you take this in for service, they will do this for you under warranty):

After checking the tires, all pressures are the same and you do not have a leak, there are 2 ways to get the TPWS adjusted. 1. Re-Set 2. Re-Initialize. To re-set: Turn Ingnition to ON, if TPWS light is on, then push TPWS Button below steering until it turns off. To Re-initialize, meaning your TPWS is not lit, when on ON Ignition, push TPWS until it blinks 3x in 1 second intervals. It will not be re-initialized (means that it will dump all previous memory and will start memorizing again). The 04's use the RPM, etc., unlike the new ones which use the Direct Sensor method.
Old 07-09-07, 10:16 PM
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NXOwner
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Originally Posted by mandyfig
The 04's use the RPM, etc., unlike the new ones which use the Direct Sensor method.
What do the 2005's use? I'm thinking RPM. If you have the Direct Sensor, aren't the valve stems different? I have the basic black rubber stems.

Also, do your steps to re-init and to reset work for the 2005 models?


.
Old 07-09-07, 11:04 PM
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RXSF
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if you have black caps, then they are RPM. If they are metal caps, then its using direct
Old 07-10-07, 06:19 AM
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mandyfig
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Originally Posted by RXSF
if you have black caps, then they are RPM. If they are metal caps, then its using direct
The reset-re-initialize work for the RPM type sensor. If it direct, I am not sure, but will check.

If the reset/re-initialize do not work, then an "actuator" has to be replaced and better take it to the dealer, should be covered under warranty.
Old 07-10-07, 06:36 AM
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mandyfig
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Originally Posted by RXOwner
What do the 2005's use? I'm thinking RPM. If you have the Direct Sensor, aren't the valve stems different? I have the basic black rubber stems.

Also, do your steps to re-init and to reset work for the 2005 models?


.
This is applicable to the 05's. The 06's started using the direct sensor method.
Old 07-11-07, 01:13 PM
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tjain
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Originally Posted by mandyfig
This is applicable to the 05's. The 06's started using the direct sensor method.
Actually it is 07 and forward. It is explained in detail Here
Old 07-11-07, 02:17 PM
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mandyfig
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Yup, my bad, 07's and on....where did you get this info?
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