2006 Buick Rendezvous has a leak near visors when it rains on driver and passenger side
Windshield seal leak
We had the same problem. Ours would dump water onto the dash it got so bad. It is sometimes very hard to re-create. Our dealership had the car 3 times. They poured over 500 gallons on in until they found what was wrong. Assuming you have a sunroof?? There are two very small drain holes in the front corners with two tubes that run down INSIDE the roof liner, down either side of the windshield and out drains in the door frames. They act just like a gutter on your house. If they get plugged up they overflow. My dealer finally pulled the liner, cleaned the hoses and 7 years later....still no leaks.
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