NHTSA Complaint #11674866 — 2018 ACURA MDX

The car alarm started going off randomly after the car was locked and armed. This would happen periodically. The car was locked using the indoor lock and then left unlocked and the lights would go off and on periodically. The internal dash periodically would flicker off and on (dash lights/screens). The car eventually drained the battery one night cycling down to 4.25v and had to be replaced (it was too damaged to be jumped). Upon replacing the battery codes were read, cleared and the car driven. The alarm and light issue came back, and the hood latch was disconnected. This stopped the alarm, but after rain events or humid days the lights would still come on (as if someone unlocked the car or walked up with the key) and the dash lights would occasionally flicker. The wireless control unit was removed and inspected and dendritic growth was noticed on one location of the board. This was cleaned with alcohol and this has appeared to solve the issue so far. The part of the board with the growth is not sealed and looks like it is right on the edge of the factory sealing.