I have a 2017 Toyota Camry XLE that has one of those keyless fob thingys. I live at a marina and park in the same space. About a month ago the trunk started to open at night sporadically about every 3 or 4 days. My son took the car for a week, parked it elsewhere and didn’t have a problem. I take it back and it starts doing it again. Could there be a car at the marina that has a similar key that is accidentally doing this?
So, remote as the only electrical signal, and manual/safety release.
Mechanically / manual release - Get some grease on the striker/bar, and slowly close the trunk. When you open it again, look to see where that grease went into the latch / lock lever. You are also looking for any wear that might suggest a misalignment. If, it could be that the latch isn’t fully locking sometimes, and a gust of wind comes up, the trunk could potentially blow open?
Electronically / fob: As long as the passenger compartment lever is an actual manual cable lever, and not an electrical switch, then you should be able to disconnect the harness to the lock/actuator, and eliminate any electrical signal from the equation. The remote is going to activate a module, and the module itself is going to send the signal to unlock the door/doors/trunk. Eliminate a false signal from the vehicle or remote, and if it happens again, something mechanical is going on. That might keep the trunk warning on, but you can at least try and make sure that the trunk is staying closed, and/or confirm/deny a mechanical issue.
Both are excellent recommendations, thank you so much!