Originally Posted by Low12s

Perhaps the dumbest comment I have heard. I pay 50K plus for the "premier" car of its kind (and I love the car). The roof is defective from the manufacturer, and you suggest I pay for the solution? GM is paying for my rental (projected 30 days, a new roof, and a paint job that had better match!)

Originally Posted by Hoonose

[to a critic of my previous post] I disagree about your 'dumbest comment' comment.
Your solution involves accepting a top that is probably as defective as the one you just turned in!

Originally Posted by OregonC6

Reading all the posts it seems like exposure to direct sunlight even in moderate temperatures ( not the worst of the summer yet ) for a couple of days greatly accelerates the delam process. Some have speculated that owners in colder northern areas might not see this as soon.

However, even northern states and provinces have a number of back to back really hot sunny days each season. If that's all it takes then .....most all will soon fail.

Originally Posted by Killrwheels@Autogeek

Most will remember that I was one of the first to complain about the roof, and urged all to contact NHTSA as well as GM. I got assigned a rep with GM, Ms Mann in GmExpert, and she was little help in getting anything resolved other than another roof panel that was clearly suppose to be the newer model roofs from 06 production.

To date the car has 6000 miles on it. It was built on Aug 15, 2005 and has had 3 roof panels go bad. The longest lasting roof, the current panel, lasted the entire Florida winter, and went as soon as weather heated. This one has become the first to almost completely come apart. Each other seperated in the back around the passenger side of the latch to a space of about 6-8 inches max. Our extreme heat and humidity seem to increase the failure to only a couple months at best.

If you think GM nor anyone has any idea how to fix these you are seriously incorrect. And those of you holding out consider this .... I was 45 minutes from home when the roof released on the passenger side tonight and needed to travel the highway home while a light rain. I cannot believe I did not become part of the flying roof club.

I want to claim the Lemon Law but cannot get a clear answer as to where and how to file. No booklet was in car. Car was sold by a Texas dealer under an order (allocation) and shipped to Florida dealer upon build. Do I look to Texas or Florida for Lemon Law ?????


Side of roof where clearly outside the frame


Lifted off frame, while still attached


How far across it has delaminated


I guess GM could consider it a spoiler ???

Originally Posted by OregonC6

Reading all the posts it seems like exposure to direct sunlight even in moderate temperatures ( not the worst of the summer yet ) for a couple of days greatly accelerates the delam process. Some have speculated that owners in colder northern areas might not see this as soon.

However, even northern states and provinces have a number of back to back really hot sunny days each season. If that's all it takes then .....most all will soon fail.

My humble suggestion is that all C6 owners who have painted roofs should make it a point to park their cars in the sun for several days as soon as possible this summer. If it's gonna happen it might as well happen sooner rather than later when the warranty is inforce and the recall is still open. But how could you take one of these cars on a long summer trip even with a fixed painted roof? Just too dangerous. However, I wonder what percent of owners know NOTHING about the problem and for whom it is a total surprise when the top goes bam!

GM must have really dreaded the national recall notice since it probably informed lots of owners who were living in total ignorance of the potential ( or likely ) problem. I mean, after all, who would ever think that Chevrolet would sell its flagship car with such a pervasive defect?

It's just not something people expect.

Originally Posted by Weely

I have a C4. I've been thhinking of getting a new C6, but reading about these roof problems does make me pause.
I'm an attorney in Kansas. Your question about whicih lemon law applies is trickier than it fisrt seems. Unfortunately I cannot give you an answer to your question.
I suggest that you contact your state bar association or the bar association of the city or county where you live. Many bar associations operate a service where they can refer you to a local attorney and you can have a consultation with that attorney for free or for a small charge. Be aware that there are almost always time limits on how long you have to make legal claims. These are called satutes of limitations. Find out what the statute of limitations is on your claim from the local attorney so it does not expire. Good luck.

Originally Posted by shopdog

My car spends its life outdoors. 18 months of hot and cold so far. The top makes some noises, but it is still hanging on. Will it delaminate? Possibly, some day. I'm not stressing about it, but then I always carry duct tape in my emergency kit.

Originally Posted by Rachane

My point exactly. Chevrolet's "solution" so far seems to be (a) doing nothing until a top separates (which could be at least inconvenient and at most dangerous), then (b) providing a replacement top/re-glue of exactly the same non-quality.

I am also unhappy about having to spend more $s on this $50K car, but I also don't want to have to leave it in the garage, fry under the clear top, or worry about the painted top everytime I drive anywhere. So in the short term I've ordered a DSV liner for the clear top, and beyond that will just grit my teeth, buy another clear top, and have it painted/lined.

American ingenuity being what it is, I suspect we will not have to wait too long before some of the aftermarket vendors start producing replacement non-flying roofs at reasonable prices!

Originally Posted by Killrwheels@Autogeek

I agree 110% than the heat and humidity seems to increase the likelyhood of failure. Also note a significant amount of cars are black, and black retains heat moreso than metallic based paint which reflects some heat.

But, if the glue/adhesive has failed prematurely in these areas, does that mean that the likelyhood of failure in cold areas will be less. I dont pretend to know .... what I suspect is the adhesive is the wrong choice for these applications. I suspect that over time even cars in colder climates "might" see delamination. There are no attachment points in the two panels other than this glue/adhesive.

My second worry, is that GM failed (or its supplier) to understand exactly what is needed to attach a polycarbonate type painted panel to a magnesium frame. If this is the case ... and hot temperatures are just speeding the failure rate --- then all of us have to worry. Because likely all glue/adhesive would fail at some point. The National forced recall from NHTSA now gives all Corvette owners some recourse at a later date if this is true. (think outside the warrranty period)


------------------------
My biggest example is the clearcoat system GM used in the late 80's when laws became more stringent to protect the environment. Without National Recall and Recognition, those that did NOT experience clearcoat failure to later would have had to repair/repaint themselves. And dont think GM did not use this to its advantage, by still allowing dealers to pick and choose, or "upgrade" services into a reduced price for a total repaint. --- Obviously another story altogether. But areas with extreme sun/heat saw the issue first, while vehicles in other areas were "safe" or so they thought until later dates.

Originally Posted by GSIRM3

This top issue sux. I was all set to buy a new C6 coupe, until all this top delamination stuff surfaced. I do not like the looks of the car with the glass top, plus I live in NC and it is just too hot in the summer for the glass top.

No way I was going to buy one now, so I just bought another M3. The M3 is a great car and this is my 3rd consecutive one. I was really seriously considering a new C6 to get something different, but not now.

I still wonder if GM changed suppliers for the top. If GM made the tops themselves, you would think they would use the same process as they did for the C5 tops, which didn't have this problem. So why are they having the problem now?

Originally Posted by LS WON

M-3??
With the transparent top you can put darken tint film on it to help protect against the heat if that is what you are worried about buy it from Mid-America or Eckler's.
It is still not too late to get a C-6

Originally Posted by TiVoManiac

Is this happening to Arizona owners too or is it a combination of heat and humidity that triggers it? Just curious before I get my 07.

Originally Posted by TiVoManiac

Is this happening to Arizona owners too or is it a combination of heat and humidity that triggers it?

Originally Posted by C6 Strangebob

I'm in the Phx area and have had no roof problem at all (YET). The car was built on Aug 25, 2005. This was after the Aug 17 breakpoint mentioned in post #94 --so I'm hoping my car won't be one of the exceptions. It has been in the sun a lot, both with and without humid conditions.

I can't understand how the last 4,000 or so 2005's could be relatively safe (and excluded from the recall) and then the 2006 models started all over with the delam problem. Maybe GM was using that last batch in 2005 as guinea pigs for an experimental fix?

Originally Posted by C6 Strangebob

I'm in the Phx area and have had no roof problem at all (YET). The car was built on Aug 25, 2005. This was after the Aug 17 breakpoint mentioned in post #94 --so I'm hoping my car won't be one of the exceptions. It has been in the sun a lot, both with and without humid conditions.

I can't understand how the last 4,000 or so 2005's could be relatively safe (and excluded from the recall) and then the 2006 models started all over with the delam problem. Maybe GM was using that last batch in 2005 as guinea pigs for an experimental fix?

Originally Posted by Rachane

I am nonetheless minded to take the painted roof to my local good non-GM body shop, explain the problem, and see if they have a sensible, practical suggestion - for example, some way of locking the top panel in place with add-on clips, screws, clamps, (?). Sounds to me as though Chevrolet uses inadequate glue, including on the repairs. Perhaps there is a much tougher glue, such as

http://www.gorillaglue.com