1) Close all doors and turn ACC on 2) Within 10 seconds, shift the gear to P or N, and press and HOLD Door Lock, or Door Unlock 3) The car will auto lock and unlock to inform you the setting is memorized. Corresponding Settings When stay shift at P, door automatically lock when shifting gears. (Press Lock to enable, unlock to disable) When shift to N, door automatically lock by speed-linked. (Press Lock to enable, unlock to disable)