My Murano had an accumulation of ice under the top part of the tailgate that couldn't be seen. When the tailgate was opening, it did not stop or detected the obstacle even though the resistance was so great that it shifted a hinge and bent the top edge of the hatch. It now has large gaps around it and will require body work to be repaired. We had a 2015 Murano Platinum before this one and the power lift gate was always very sensitive on that one although I never encounter a similar situation with ice build up. My dealership is telling me what happened is normal and therefore not their problem. Does anybody knows more about the engineering of the lift gate sensors and what they are supposed to detect?