Auto Lock functionality is only available for Kevo 2nd Gen products. The default setting is OFF for auto-locking. Remove your interior cover and locate the small switches on the back of Kevo. Put Switch #4 (farthest on the right) in the UP position. That will enable auto-locking. When enabled Kevo will automatically throw the bolt after 30 seconds. Attention! With these feature enabled, it is possible to lock yourself outside if you don’t have an enrolled smartphone, Kevo fob (fobs are only available for Kevo Smart Lock products) or standard key with you.