The button functions for a Care Key are the same as for a regular key. If no speed limit has been set, the vehicle and the key work as normal.
The speed limitation can be set by the user profile who is the administrator. The limitation is then active while the vehicle is being used with a Care Key.
The ability to set a maximum speed for use with a specific key is intended to give the vehicle owner increased peace of mind when handing over the vehicle to a young or inexperienced driver, a valet, a workshop, etc.
When a speed limit is active, this will be indicated by a symbol in the instrument panel and a message.