I knew the service team very well at Lexus Bracknell when it existed.
They gave me a full data printout sheet that had absolutely everything about my car from day one.
Not sure they where meant to do this, but was very useful.
Both Toyota and Lexus can issue a replacement service record book and will enter details in the book and provide service data information, they may charge depending on the dealer.
I use My Toyota on line log in for our Rav4 and that holds all data on the car, services, Mot's, parts fitted etc, so this is very useful and handy.