i have access to many different tpms sensors but i can't find anywhere what the freq is on a 2nd gen rx. will the system adjust to a new freq? where can i find the orig freq?--without taking the tire apart, that is.

 

No listing of any frequencies in Lexus/Toyota tech materials.
References using the Tech tool to identify and reset only.

 

According to this web site, they are 315 Mhz.

www.carid.com/2009-lexus-rx-tpms-sensors/