after major snow melt and rain, my drivers and passengers front floor is soaked???

[H3slate]

Do you have a sunroof? That could possibly be your leak.

[Rico001]

I will be willing to to bet it is Roof Marker Lights.
The recommendations here is to remove them on
a warm dry day. Clean them and caulk them and
not use the gaskets.
Good luck to you hope it helps.
~Richard

[HUMTECH]

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=1872650&from=sm#ss1-1872650">Condition/Concern:

Some customers may state there is water leaking from the right or left "A" pillar area. The leak may also be coming from the headliner area.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=1872650&from=sm#ss2-1872650">Recommendation/Instructions:

If after normal diagnosis a concern can't be found. Check the following areas and repair as needed.

1. <LI type=1>Check the roof clearance lamps for being tight and properly sealed. (See PI # PIT3752) <LI type=1>Check for a kinked or plugged sunroof drain. ( See Bulletin 03-08-57-002 )
2. Remove and replace the roof rack and front corner roof cab lamp and check for an improperly sealed ditch seam.

[DRTYFN]

I've had experience with a water-logged interior.

Get yourself an electric dehumidifier. IIRC I paid $99 or $109 for one. It removes over 6 pints of moisture a night. The interior was bone dry in 3-4 days.

If you were closer I'd loan you mine.

[HummerMann]

After five an half years of experience with two H2s I think there are those that have had wet floor mats and those that will. My 2003 H2 did not have a sunroof like the '06 SUT and it still got water inside. I finally took off all the roof marker lights on the '03 and used silicone seal under them and NEVER had water again. Part of the problem with the '03 was that after I had the Rancho 4 inch lift installed and put on a light bar and gobi rack it wouldn't fit in the garage or in a lot of other covered places, so it was outdoors all the time. The lift affected the driveability in a crosswind on the highway and cornering so much that I decided to stay stock with my '06.
I tried to beat the game with my '06 SUT and took off the roof marker lights and siliconed under them as soon as I bought it and have never had water, but this one fits in the garage, so it is not outside as much.

[Intercooled]

I havnt had water yet but I here about these stories and I worry. I might have to remove mine and caulk under them. I would assume to use a good RTV sealant. How do the marker lights remove?

[Rico001]

The 2 lights in the corner are held in with a screw.
The middle ones are 1/2 turn twist pull up with tabs
on them.
~Richard