This link may help (it's a US site, but will give you an idea what is done).
https://secure.drivers.lexus.com/lexusdrivers/info/my-lexus/service/maintenance-schedule.do
Also note service records are transmitted once at the end of every day to Lexus if they fail for any reason they will never be re-transmitted and they have to be inspected at the servicing dealership, I had a missing service record and had to ring the Dealership for confirmation.