Your trunk function on your FOB is most likely being pressed while in pocket or in your hand. I noticed my trunk open sometimes and couldn’t figure out why. Realized that is was being inadvertently being pressed.
Welcome to the forum and I guess thank you for that…?..
Funny, doors will unlock/lock as well as the panic alarm will go off the same way… just incase you hadn’t figured that out yet…
At one shop I worked at we would put the keys to vehicles in a reg bank bag and put them in the inground safe (old building) and sometimes with all the keys and money and what nots in there it would hit the remote start on vehicle(s) in the shop, so we had to walk the shop not only checking for unlocked overhead doors and compressors being off and drained but also vehicles not running… lol… Took a few times to figure out what was happening…