petergerst

I checked the tire pressures, they're all about 32 yet that damn light wont go off. I have an appointment at the dealer on Mon morning to have my wheels/sensors looked at.....but did anybody else run into this problem?

martini3

try 34 PSI. they should go off. I'm not sure what the set number is for the light sensor to go off but I always make sure I'm at 34 or above all around.

Or higher in the back and lower (not lower than 34) in the fronts.

I've noticed the range that my light sensor goes on.
It's in the range the lower 30's or below that the TPS system will kick in and notify you.

OK...I just opened my '03 Manual (page 318) under "Service Procedures and Specifications".
'02 and other years may differ in the manual pages but it is towards that back of the manual.

As follows:

CHASSIS
-Tires and Wheels
Standard and run-flat tires:

Tire Size - 245/40ZR18
245/40ZR18 93Y

Tire inflation pressure -
Front 230 kPa (2.3 kgf/cm(squared) or bar, 33 PSI

Rear 230 kPa (2.3 kgf/cm(squared) or bar, 33 PSI

NOTE: Recommended cold tire inflation pressure.

j three

If you have a spare it probably has a sensor also.

rominl

iTrader: (4)

no, the sc430 doesn't have a spare by default. and if so, it's just a donut

rsa supra

I had that happen and it ended up being a bad sensor.

Hopefully you're still under warranty.

landcrusin

I had the same problem on my 04 sc.carried it to dealer last month and it was the tire sensor. it is coverd under your warrenty if it's still in.

kleef

I had the same problem on my 03 SC. just got back from the 30k service at Lexus dealer. When I brought the car in, I asked if the sensor might be out, and his response was that it was unlikely because "it hardly ever happens." Well, it did happen, luckily under warranty. I should have had all 4 replaced in hindsite perhaps!