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Hummer h2 roof lights leak.
Water also trickles a steady stream from the 2 covered.
Water pools above a pillar drips down.
Also it can leak from the moulding near the corners of the windsheald but rare.
2003 hummer h2 roof leak fron celing map lights i had the same probmlem its coming from one of 3 lights is the center quick fix was to use clear silicon from wal mart.
2007 h2 leaks water from a pillars on each side.
Just put some silicone around the marker lights and at the front of the roof rack rails.
There is a plastic piece that is screwed in with one screw and underneath that there is a hole for wires and such.
Aug 08 2009 2003 hummer h2 4 answers.
Water in the floor usually means the leak is coming from the front of the side rails on top and leaking through the front side pillars.