There is no external lock mechanism (like a key hole) to get wet and freeze.
Locking and unlocking should not be an issue as it is all internal.
The door handle and the door itself could still get frozen/stuck to its mating surfaces as any car might do, new or old.
Sounds like you will have that part under control with the de-icer as you have in the past.
Did I address your question as you meant it?
The Medic
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Monday, January 1st, 2018 AT 7:13 PM