You can lock the doors while the engine is running. This is a useful item for maintaining the interior temperature in summer and winter. You can find installation instructions in a video by searching for "Enlarge Shokai." It's an easy installation that takes only a minute! I'm selling it because I sold my car. [OBD Inspection & Vehicle Inspection Compatible] TOYOTA Voxy 90 Series / Noah 90 Series Compatible Engine Running Door Lock Kit - Idling Door Lock [Compatible Models] TOYOTA Voxy 90 Series / Noah 90 Series Model: 90 Series Year: January 2022 (Reiwa 4) - *Operation confirmed on Noah 90 Series 2025 (Reiwa 7) September revised vehicles. [Confirmed Working Vehicles] ◎ Noah 90 Series (Hybrid) Model: 6AA-ZWR90W Year: Registered September 2025 (Reiwa 7) Grade: S-Z