My 2007 Toyota Corolla started locking the doors when no key is inside of the car.
The car will be sitting in the garage with no keys in it and it has begun locking the doors without assistance.
One of your neighbors may have a new car and their remote is triggering it .. A story on the news recently showed a thief walking down the street while triggering his remote ... every now and then he would unlock a car .... then he stole what was in it
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