The button functions for Care Key are the same as for the standard key. The car and the key work as normal if no speed limit has been set. As with other keys, Care Key can be linked to a user profile in order to save personal settings in the car.
The speed limit can be set via the administrator user profile. The speed limit is activated when the car is unlocked using Care Key, or when the driver door is opened and the car detects a Care Key on the driver's side.
The option of setting a speed limit when using a specific key is intended to increase safety when entrusting the car to e.g. a young or unexperienced driver, valet parking, or a workshop.