Please make sure this is the correct part before buying. In this product page you can see a LEXUS GS450H SRS CONTROL UNIT 89170-30540 6E 2007 LEXUS GS450 AIRBAG ECU SRS that will fit a Lexus GS450h and any of the vehicles in the compatibility list. This vehicle part is a Used part, so please ensure it is the right one before buying.