Enabling automatic locking by speed

You can set the car to lock the doors when driving at speed.

You can set the car to automatically lock while driving, this is designed for improved occupant safety. It prevents the doors from being accidentally opened when moving at speed. It triggers at a relatively low driving speed.

Press the car symbol in the bottom bar and go to Settings.
Go to Controls → Locking.
Turn on or off the auto lock while driving setting.