ya so i was about to get in my car and the remote commander thing ran out of batteries so when i unlocked the car manually the alarm went off?? and its REALLY LOUD
Your best bet is to go to your BMW dealership and get the battery replaced or something but did you unlock it from the outside by putting your key in the door or reach on the inside and open? if you reached inside it will always go off but Technically if you just use your keys it should not ring, you can make it stop by just turning on the ignition btw