Question about 2004 Hummer H2

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2004 H2 HUMMER exterior lighting

Bought a used HUMMER and am fixin up...the exterior lights ie; Side Marker, Roof Marker will not come on...Checked all the fuses. The side markers on the fenders...are they a "unit" replacement item?

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  • Anonymous Mar 19, 2014

    roof marker lights quit working



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No. You can remove the marker cover and replace the bulb.

Posted on Jul 07, 2008

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Check lighting relay and replace if necessary

Posted on Jul 07, 2008

  • shannon stanford
    shannon stanford Oct 06, 2014

    do you mean the fuse under the hood ? I cant find a relay



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Water leaking in my 05 H2 Hummer and don't know where from....checked sun roof, rubber doors seal and still can't find problem what else can I look not heater core either...

first is the water coming in while the a/c is running,because your evaporator might be clooged.if the passenger floor is wet thats a sign that it may be

Sep 20, 2010 | 2003 Hummer H2

1 Answer

I need to remove the luggage racks from my 2007 Hummer h2 SUT

I have the same vehicle and was able to remove mine with the following steps: 1) remove light behind each rear of luggage rack rail using phillips screwdriver (one screw each side). 2) remove molding underneath each light using T20 torx driver (2 screws each side). 3) Loosen cross rails nobs. 4) Side cross rails off of roof.

Nov 27, 2009 | 2007 Hummer H2 SUT

1 Answer

How do you remove the center 3 cab marker lights on a Hummer H2 2003?

If these are the roof lights you're leaving them on.
The vehicle is oversized and you may be legally required to run "running lights"
Check with your federal/state transportation agency
so you don't get fined for an oversized vehicle without running lights.

if you need to remove them due to a bulb being burned out or to repair something I have not tried that yet.


Oct 16, 2009 | 2003 Hummer H2

4 Answers

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 .. also it can leak from the moulding near the corners of the windsheald but rare...

Aug 08, 2009 | 2003 Hummer H2

4 Answers

2004 hummer h2 leaks water from roof over front

Seal all the lights on top. Mine flooded from the water running down the light harness wires. Used clear rtv sealant and fixed it. You will have to remove the seal the two larger lights on the corners.

Jun 23, 2009 | 2004 Hummer H2

4 Answers

2004 Hummer H2 leaking water on passenger floor

never worked on a hummer but rule of the day is that there always is a drain on the firewall on the engine side. usually a small rubber hose about two inches long direced downward. Usually you can stick your finger in there and clear it out. Don't shove anything hard into it or you can punch a hole in the evaporator core.

Apr 05, 2009 | 2004 Hummer H2

1 Answer

Roof is leaking near the handles by the front windshield, onstar speaker, and rear interior light

It could possibly be one of the exterior perimeter lights that has bad plastic/foam seals.... You may need to replace these seals by making your own using materials found at a hardware store or buy new light assemblies...

Aug 02, 2008 | 2003 Hummer H2

2 Answers

Change light on 2006 hummer h2

it can be easily changed by removing the plastic cover then u will see the light bulb, don't try to change it from the back, it wont open :)

Jul 17, 2008 | 2006 Hummer H2

1 Answer

Exterior lights

I assume you mean the marker lights on the roof. They do burn out very quickly and easily but are cheap and easy to replace.

Jul 07, 2008 | 2004 Hummer H2

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