Rear glass defect or stain?

[RafaelRM]

Hi! I bought my GT around 40 days ago. Today I notice these marks in the rear glass. It’s from outside because I can feel it with my finger nail. I tried to remove it but I couldn’t…. Not mentioning the scratch I found too…. Any of you guys know what is it? Do you think it worth to make a complain to replace the rear glass?
I’m afraid the new glass will be worst ( bad installation and water insulation) or leave the way it is…

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[rbeyer]

I assume you bought this new? If so, absolutely, complain until it's right.

 

[RafaelRM]

I assume you bought this new? If so, absolutely, complain until it's right.

I bought it new.

 

[Paul's stable]

I bought it new.

Okay dumb question first have you tried cleaning the inside of the glass? It looks like (A) glass delamination or (B) window adessive that has seeped out and needs to be removed. Take it to the dealer they should fix it. Good luck with your car.

 

[GrabberB]

Hi! I bought my GT around 40 days ago. Today I notice these marks in the rear glass. It’s from outside because I can feel it with my finger nail. I tried to remove it but I couldn’t…. Not mentioning the scratch I found too…. Any of you guys know what is it? Do you think it worth to make a complain to replace the rear glass?
I’m afraid the new glass will be worst ( bad installation and water insulation) or leave the way it is…

I had some odd looking streaks/smears/splotches on the inside of the back window that I didn't notice upon inspection during pickup (new). I looked over all the body panels and gaps and so on and somehow never paid any attention to the back glass,

When I first noticed them I had an oh crap moment. I hurriedly tried to clean the back window because I thought this might be permanent damage of some sort. The marks didn't budge. I dug in deeper with a hard elbow grease cleaning with success on the second attempt. The back glass is hard to reach and a pain to clean.

Speculation here. Not saying this is the case for you however a deep cleaning is worth a shot. By deep cleaning I mean hard elbow grease and Stoner's glass cleaner coupled with microfiber towel. No abrasives or harsh chemicals. I would never recommend cleaning vehicle glass with Windex or paper towels.

My theory is.... I'm guessing there is some sort of protective film applied to the glass that is removed at some point either pre or post installation on the assembly line. I surmise it's just as hard for assembly line workers to get whatever this is off and they let it slide. This is only a theory and I very well be wrong IDK....

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