It detects the sign from the car and uses the fob battery to transmit a short sign. Passive RFID within the keyfob, and the automotive doesn’t transmit continuously.
On BMW’s and VW’s, it will truly pop the trunk back out if it senses that the secret is inside and the rest of the doors are locked. The automotive will lock if I have Key 1 in my pocket despite the fact that Key 2 is contained in the automobile (typically in her purse). I’d go evaluate the Tech Stream thread to see possibly it may be program to no lock when the key is in proximity.
DON’T GET CAUGHT WITHOUT A SPARE KEY!
Locksmith was running late and known as twice to let me know. Had three residential locks re-keyed and repaired inside forty five minutes. You never want to fret about being unnecessarily interrupted with Elgato Smart Key.