How to automatically lock the doors after leaving the 2018 Sagitar?
3 Answers
18 Sagitar's automatic door locking situation after leaving: When the key is outside the car and no doors or trunk are opened after unlocking, the car will automatically lock in about one minute. The automatic locking function varies depending on the vehicle model, and the triggering conditions are also different. For example, the Sagitar automatically locks when reaching a certain speed. Some models only require continuous driving for 10 seconds for the doors to automatically lock; others automatically lock as soon as the driver steps on the brake. The dimensions of the 2018 Sagitar are 4655mm in length, 1780mm in width, 1453mm in height, with a wheelbase of 2651mm.
I previously drove an 18-model-year Sagitar. This car doesn’t come with an automatic door-locking feature when walking away from the factory, but you can manually set a lock confirmation beep as an assist. Press and hold the lock button on the key fob for about 10 seconds until you hear a beep from the horn, indicating the setup is successful. After that, pressing the lock button will trigger a beep, helping to avoid forgetting to lock the car. For true automatic locking, you’d need to install a third-party module, connecting the box to the OBD port or the vehicle’s computer wiring, which locks the doors when it detects the key moving away. However, modifying the wiring may carry risks, so it’s recommended to have it done at a professional modification shop. The Sagitar’s key contains a sensor chip—holding the door handle’s sensor area for a few seconds from over 2 meters away can also lock the doors, though this isn’t fully automatic. For daily use, pairing it with the lock confirmation beep is quite convenient. Developing a habit of checking the door handle after exiting is safer, as electronic devices can sometimes fail.
Tried several methods to enable walk-away auto-lock on the 2018 Sagitar. The simplest way is using a 5053 diagnostic cable to enable hidden features, but this model's BCM module doesn't support auto-lock programming. A reliable solution is purchasing an OBD auto window closer (around ¥200) that plugs into the port under the steering wheel - some models feature auto-lock when walking 1.5m away. For DIY enthusiasts, door panel removal to install sensors is possible but may trigger fault codes. Personally, I use the VW mobile app linked to my vehicle, which sends push notifications after locking - essentially cloud monitoring. The 2018 model uses CR2032 key fob batteries; weak batteries shorten the sensing range - replace them first if walk-away locking fails. Electronic systems occasionally glitch, so mechanical checks remain the safest approach.
