I have a 2006 h3. I had the exact same thing on my rear door. I had the GM aftermarket protection plan. before it ran out i took my truck to a hummer dealer and had all kinds of things fixed. Radio, DVD headrests, blower resistor, loose driver mirror, thermostat,and paint rusting. they gave me trouble, so i got GM involved and they sent a rep out to colorado and they ended up fixing everything. I just had the plastic fork in the t-case replaced and GM offered NO help.. im not happy with GM and will prob never buy another GM product because of this. Luckly i found a GM dealer who fixed it for 350.00.

 

I had to get GM involved also, my warranty was out by 30 days and the dealer wouldn't do sh-t. The funny thing was when my warranty expired it was at the dealer having the fuel tank & sending unit replaced because one of lines rusted off the sending unit setting an evap code which took them 3 visits to find.

 

What you guys havent ever seen rust ? Its on the inside of the back door bottoms were the skin folds around onto the door frames. Go find any Ram and you will also see it.

 

yeah,dump your used oil in thru the hole like my dad did in his 36 chevy!,,4 door,,UGly

 

I will take some pics tonight and attempt to put them on here . I am new to the forum so I dont know if it will let me post pics right away .

 

This is what my rear D.S. door looks like

 

WOW! That looks like a bad 'bonding' issue with the paint/primer the way it's peeling back. I'm going to check mine, but I'm sure I would have noticed something that obvious. I definitely would be pushing the dealership to do something about that!

 

Yes there must have been something wrong with the process if there are a number of us having the issue in the same area. I will be curious to see if this spans all years.

Believe it or not, it's not that noticeable when standing next to the door. I found it right about last year at this time when I was wiping down the area after washing. Funny thing is I posted about it on another site but never saw this thread so I didn't know anyoe else was having issues.

You should see my pass side torrision bar. Looks like a fat pregnant lady :0 I'll get a pic of that up too.

 

Here is the pics of the rust on the bottom rear doors . Sounds like everyone has the same issue

 

I have an '06 and this happened to mine about 2 years ago. My deal painted it under warranty however the new paint is now starting to bubble.