Has anyone experienced or know if there was something I could have done while in my vehicle that would cause it to automatically lock the doors, horn chirp and flights flash as though I used my key fob to lock it? I had taken it to a mechanic for an estimate to get my catalytic converters changed and removed all personal belongings before going. When I got home, I was putting my belongings back and when closing the door, it was as though someone used the remote to lock it. My concerns are due to just purchasing it and having issues with the dealership I got it from. I’ll leave out all specifics, but we may have to file a lawsuit and the owner (it’s a small LLC that sells used cars, not a certified Buick dealership) is beyond livid. When we purchased it, he stated he only had 1 key and 1 remote. As soon as my vehicle locked, I went inside and grabbed my keys and fob, then noticed a suspicious vehicle sitting in front of my home. We live in a secluded area where we look out for our neighbors. The vehicle seen that I seen them, then turned into a neighbors driveway, idled to the back of that property, turned around and was slowly leaving. I started recording, so they left. I don’t know if I’m being paranoid, if there was anything I could have done to cause the vehicle to lock that way. When hitting the lock button inside, it doesn’t make the horn chirp or lights blink like it does when locked by the remote. So, I’m wondering if this was simply a glitch, if anyone knows if there was something I could have possibly done to cause that or if I need to be worried about someone programming a universal fob to gain access to my vehicle. I also spoke with the property owner of the driveway they pulled in and they don’t know anyone with the vehicle (Jeep) that was suspiciously creeping. He said no-one was supposed to be at that property (he doesn’t live there. Just purchased it because we have tons of wildlife, so bought it for hunting). I questioned other neighbors and no-one has ever seen that vehicle on our road. But if this has happened to others, I won’t be as concerned, while still being on alert of a possible thief, despite living in a place with almost no criminal activity.