2015 VOLKSWAGEN BEETLE CONVERTIBLE immobilizer

If the ignition is switched on or the engine is running and the driver door is opened, a chime sounds. The chime is also a reminder to switch off the engine and turn off the ignition before leaving and locking the vehicle from the outside.
On vehicles with automatic transmissions, the vehicle key can only be removed from the ignition when the transmission is in Park (P).
After the engine has been switched off, the radiator fan in the engine compartment may keep running for several minutes, or may start running after the vehicle has been parked for a while, even if the ignition is switched off and the vehicle key has been removed. The radiator fan shuts off automatically when the engine has cooled down enough.
Electronic immobilizer

Declaration of Compliance, Telecommunications and
Electronic Systems
Radio Frequency Devices and Radiocommunication Equipment User Manual Notice.
Radio-based equipment
x Mobile Phone Package
x Electronic immobilizer
x Remote control vehicle key
x Keyless Access with push-button start
x Car-Net (US only)
x Blind Spot Monitor with Rear Traffic Alert
These devices comply with:
FCC Part 15.19
These devices comply with Part 15 of the FCC Rules. Operation is subject to the following 2 conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation.
FCC Part 15.21
CAUTION:
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
These devices comply with RSS-210 of Industry Canada.
Operation is subject to the following 2 conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired operation of the device.
The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment.

Special considerations when unlocking:
x If the vehicle is equipped with an anti-theft alarm system, the system remains activated for the
unlocked vehicle. But the alarm is not triggered at first ⇒  Power locking system.
x Open the driver door. The alarm will sound.
x Switch on the ignition. For vehicles with Keyless Access, deactivate the alarm by holding the
remote control vehicle key to the right of the steering column trim and pressing the starter button ⇒  Starting and stopping the engine, if necessary. The electronic immobilizer recognizes a valid remote control vehicle key when the ignition is switched on and deactivates the anti-theft alarm system.
The driver door can be unlocked separately from the inside the vehicle by pulling the door
handle to open the door ⇒  Unlocking or locking the vehicle from the inside.
The anti-theft alarm system, when installed, is not activated when the vehicle is locked manually
with the key bit ⇒  Anti-theft alarm system.
Manually locking the passenger door

Fig. 156 On the edge of the passenger door: Manually locking the door with the vehicle key.