Simply go to Settings Vehicle Remote Lock, Unlock, Start. From here, enable Passive Door Lock. To note, if other electronic devices nsn for rj45 patch panel interfere with the key fobs signal, the vehicle may not detect the key fob inside the vehicle. Talk to us in the comments. All of the doors have been closed. At least one Remote Keyless Entry transmitter (key fob) has been removed from the vehicle Passive Door Locking enables you to not even use use the lock button on the key fob or the button on the vehicles. If passive locking is enabled, the doors may lock with the key fob inside the vehicle. And its probably not a good idea to leave the key fob in an unattended vehicle. Do you use Passive Door Locking on your vehicle? With a little-known feature called Passive Locking available on most GM vehicles equipped with Keyless Access, the vehicle will lock its doors automatically after the following three conditions have been met: The vehicle has been turned off. So, you arrive to your destination, park, shut off your car, and exit the vehicle. But since you still need to lock the doors, youre not done yet right? In a word, no. You simple park, turn the car off, get out, and walk away. And the vehicle does the rest (locks itself). How convenient is that? For vehicles with Keyless Access, Passive Door locking can be enabled in the Settings menu of Chevy MyLink, Buick-GMC-Opel IntelliLink, or.