Just got my 06 GS300 in Feb, about a week ago while driving the check system light with the tire symbol started flashing at me. What could this be? Scanner doesn't register any codes.

 

One of your tire sensors may need to be replaced (probably a dead battery).

 

Would Lexus be able to tell me which sensor it is?

 

Many shops with a good scan tool can tell you which sensor is bad. As for the sensors rockauto.com has denso brand for a good price. Tire shops usually are able to mount and program the sensors for you. But, before you go spending bucks. Make sure that all the tire psi are set at about 36psi all around. If all the sensors are working, the light should go away on its own. If it doesnt order the wheel sensors and pay a tire shop to install, and register the new sensors.

 

Sweet thanks