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My 2014 C7 has about 11,000 miles on it and is seldom out in wet weather. In spite of that, I just discovered that the nut that holds the left hand (door side) driver's seat track in place is severely corroded (see pic 1) The stud seems to be fine (i.e., rust free). The right side (see pic 2) and both of the passenger side nuts and studs also look fine.
Rusty seat mounting nut.jpg Drivers seat track mounting.jpg

It seems likely to me that GM may have gotten a bad batch of nuts. My dealer tells me he is not aware of any bulletin about a problem, and that he sees almost no demand for replacements.

Has anyone experienced or are aware of a problem with seat attachment mounting nuts rusting or is this a one of a kind occurrence??
 

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Could you have possibly spilled some liquid in that area? If so, it would pool into that recessed area when the nut is.
 

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2020 C8, Elkhart Lake Blue Metallic, 3LT, Z51, MSRC and more
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I've never seen anyone else post this problem on two different Corvette related forums.

I agree with joemessman - it looks like at some point there was some liquid spilled there (ever put a wet umbrella behind the seat?).
 

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I bet we are all going to look. I am!
Yep, mine are rust free!

OP can use the same product I jut used on my 3 month old Grand Sport Exhaust! 10 minute job. All C7's have the issue.
This is a PDF of my simple DIY effort using Rust Reformer: http://netwelding.com/Muffler_Rust.pdf

Rusted_Muffler C7.jpg
Before Bottom: After Top
 

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Eskimo, are you the original owner? If so you would know if anything had been spilled in that area.

SF
Rick
 

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Discussion Starter #7
Thanks for the replies, and thoughts.

I got the car 3 years ago with about 3,000 miles on it, so I can't say for sure it was never exposed to moisture. However, I have thoroughly cleaned the car's interior several times over the last 3 years and this was the first time I noticed this corrosion. I KNOW it has not been exposed to water during the last 3 years. I also think it is odd that the stud that the bolt is mounted to appears to be rust-free. That is why I figured there MIGHT have been a problem with a bad batch of nuts (rather than water in the area, which if it was corrosive enough to attack the nut probably would have attacked the stud as well).

It looks like it isn't a common problem. Thanks again.
 

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Thanks for the replies, and thoughts.

I got the car 3 years ago with about 3,000 miles on it, so I can't say for sure it was never exposed to moisture. However, I have thoroughly cleaned the car's interior several times over the last 3 years and this was the first time I noticed this corrosion. I KNOW it has not been exposed to water during the last 3 years. I also think it is odd that the stud that the bolt is mounted to appears to be rust-free. That is why I figured there MIGHT have been a problem with a bad batch of nuts (rather than water in the area, which if it was corrosive enough to attack the nut probably would have attacked the stud as well).

It looks like it isn't a common problem. Thanks again.
Could be right, whatever the protective coating was supposed to be on the nut may have been missing. Considering it's holding the seat it may been more than the often used zinc plating. The stud may be cadmium plated as that is sometimes used.

Agree one rusting when the other isn't points to the material or finish. Rust Reformer will work to turn the iron oxide a blue black!
 

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I just finished the conversion of my 2015 (purchased new) standard seats to the competition type. There was no rust on the nuts holding either seat.
 

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Maybe it was exposed to water before you got it and the damage is just now showing up. Hope this is the only area you are seeing evidence of corrosion in.
 

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Discussion Starter #12
Thanks for keeping this in mind and for letting me know your findings. All clues seem to point to some moisture in the area in my car before I got it.
 

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Discussion Starter #14
Yep. This is the only area. It appears that you are probably correct. I have no way of knowing for sure.
 

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Eskimo, did you replace the bolt?

SF
Rick
 

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My 2014 C7 has about 11,000 miles on it and is seldom out in wet weather. In spite of that, I just discovered that the nut that holds the left hand (door side) driver's seat track in place is severely corroded (see pic 1) The stud seems to be fine (i.e., rust free). The right side (see pic 2) and both of the passenger side nuts and studs also look fine.
View attachment 173298 View attachment 173290

It seems likely to me that GM may have gotten a bad batch of nuts. My dealer tells me he is not aware of any bulletin about a problem, and that he sees almost no demand for replacements.

Has anyone experienced or are aware of a problem with seat attachment mounting nuts rusting or is this a one of a kind occurrence??
I just coming back with my C7 Grand Sport 2018 with 2400 miles on garage keep, never drove it on rainy day! And I notice both seats bolts are rusted!! I will contact General Motors! I am not happy with that!!!
 

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Spitfire, welcome to our forum. In your picture, it seems like it is very superficial rust possibly above a locktite coating. As Norm suggested, a spray of WD40 and a wire brushing should take care of it. Even though you indicated you never drove in the rain, my guess is that you have had your car washed during the couple of years you have owned it. Water could have easily gotten in when the doors were opened, or a window not fully closed.
 
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