Forgot your password?
Or sign in with one of these services
For your search about 450h workshop manual give a look here:
http://workshop-manuals.com/lexus/gs_450h/v6-3.5l_(2gr-fse)_hybrid/relays_and_modules/relays_and_modules_accessories_and_optional_equipment/alarm_module_(vehicle_antitheft)/component_information/locations/
Sent here in pvt because of copyright.
Else , give a look on Lexus tech portal (paying the time you need to download )
happy for new Lexus