tire pressure light

My tire pressure light has been on since i put my new wheels and tires on about 6 months ago. what causes this? is the sensor in the factory wheel?

 

i also just learned that the sensor his hooked up to all 4 tires ALONG with the spare. So you might want to check your spare. My light was on for 4 months and i went in for a oil change and they said my spare was low on pressure.

i thought it was pretty silly, but also a nice feature.

 

Yup... New sensors from Toyota are ~200 each...

 

Yeah you need to make sure they put the sensor on your new wheels or if they are on the old ones, in the 09 model there are only 4 sensors spare does not have it.

 

i'll just live with it. my stock wheels and tires are in storage. it doesn't bother me that much.

 

did you check the pressure on your spare?

There is also a hack online to just turn the light off http://answers.yahoo.com/question/index?qid=20070926014414AABEjZ1

 

I wouldn't really call that a hack -- more like a procedure........