2014 highlander rear driver side seatblet leak
When it rains water comes in from directly above
the seatbelt and water puddles on the floor. It has
been doing it for a while. There is a sunroof on the
vehicle, but don't believe it's coming from there. I
already blew out the drain lines and still the same
problem. Anybody have any suggestions?
I would suspect the water could be coming from the sunroof drain tray which has some drain holes, they might be clogged. You could remove the trim around the belt area, also called the B trim to see where the water is migrating from.