GS300 door locks

[Wilding]

My 06 GS300 locks itself with the key inside while I'm outside.  Happens randomly, at the store, in the garage, etc.  Lexus is no help, they've never heard of this happening.  Has anyone had this experience or have a guess at the cause?

[TrevC]

It should be something that you can have dialled out as it is the case here in the UK that for insurance purposes the car must lock and immobilise after a certain period of inactivity. Your dealer or specialist repairer should be able to switch off this function with the correct diagnostic equipment