I have a 2018 EXL that we purchased new in February that has around 5000 miles on it. In the last couple of days an interesting issue has popped up. I frequently get tools out of the back of this vehicle so I use the button on the back of the vehicle to activate the power liftgate and leave the fob in my pocket. Yesterday morning I did just that before I left for work and no issues. Drove to work approximately five miles and got out walked into the building and came back out to retrieve something from the rear of the vehicle and nothing. Tried many times during the day and it never worked. Checked the setting for the liftgate on the head unit and they were set correctly as before. Parked in the garage overnight and went out this morning and it was working normally. Opened and closed it with the button three times no issue. I then drove to work parked, let the car lock itself and tried the liftgate and NOTHING at all no actuator button or lock button. I tried it several times today to no avail. Drove it home and parked in the garage and it is now working just fine! The only thing that I can see at this point that this could be is the first day we had wet roads and raining all day, the second day it had just rained and we again had wet roads but it cleared up and was dry on the drive home. Does anyone here know if there have been any issues like this with the 2017/2018 vehicles with the power liftgate? My dealer claims they have never seen this before. It seems very odd to me that the switch could be getting water in it as light as the rain was both days but is the only common denominator I can think of.