My girlfriend leaves the door to her '99 Jetta unlocked. Perplexed, I asked her why. She said that the alarm goes off when she unlocks the doors and turns the car on. This makes no sense to me; VW wouldn't devise a mechanism that performed this way.
And of course, it never happens when I lock the doors and turn the car on. Is there a rationale behind this? My '93 accord doesn't have car alarms and I'm not sure how they work. Is there a sequence of events she might be following that would trigger the alarm?