If you hear a beeping sound after parking the campervan, turning off the engine, and opening the driver’s door, this is an alert reminder from the vehicle.
This usually happens when something has been left on or not fully switched off, such as:
The key is still in the ignition
The headlights are still on
What to do:
Remove the key from the ignition
Check that all lights are switched off
Close and reopen the door if needed
The beeping should stop once the reminder condition is cleared.