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Old Oct 12, 2021 | 11:33 AM
  #1581  
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None of that is visible to my eye on my car. I'm not going to go hunting for things to complain about, and overall the car has been a very satisfying purchase for me. If I was going to complain about anything, it would be the orange peel paint, but that's pretty much chronic on any GM vehicle.
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Old Oct 12, 2021 | 11:55 AM
  #1582  
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Originally Posted by john91498
Went to check on my car. She was left in the open and it rained. Told the service manager I'm taking her home till the transmission comes in which is probably a few months away. Got her home and the shock towers were full of water. Took the air hose out and cleared the water.
Before I took her home, I asked the service manager how many transmissions went bad. He said mine was the ninth one. There were about 30 allocations for this dealer, so those are pretty bad odds.
Here's a pic of 2 other Corvettes waiting for transmissions.
Wonder if all nine came from those 30 allocations?
Did you ever push the vehicle hard? Like using launch control, etc? Just curious. I have 100% avoided max stress type events, but at some point I think I need to find out if my DCT is going to hold up or not.
Planning to spend some track time with it during the next couple months, so we shall see.
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Old Oct 12, 2021 | 12:43 PM
  #1583  
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Originally Posted by dohabandit
Wonder if all nine came from those 30 allocations?
I could be that dealer has a good service reputation. If I had a transmission problem I'd call around different dealers to find out if they'd ever replaced a C8 transmission before.
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Old Oct 12, 2021 | 01:09 PM
  #1584  
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Originally Posted by RKCRLR
I could be that dealer has a good service reputation. If I had a transmission problem I'd call around different dealers to find out if they'd ever replaced a C8 transmission before.
Precisely! And I bought my C8 via MM and had it CD'd, if I had to service the DCT I wouldn't be hauling it up to NH.
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Old Oct 12, 2021 | 01:17 PM
  #1585  
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dohabandit, I used launch control twice. Once was when I just hit 1500 miles break in. the other was to impress my boss who has a very nice Porsche 911. After both times, the transmission felt normal.
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Old Oct 12, 2021 | 01:24 PM
  #1586  
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I was very tempted at 1500mi too, but given all this DCT problem stories, I have been putting it off a bit. I have around 5kmi now.
Question is when do I put my hand in the cookie jar, and will I get caught!
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Old Oct 12, 2021 | 01:35 PM
  #1587  
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I'm going to wait to do launch control until after I take the Ron Fellows class. That is a part of what they teach you and with my experience there in 2015 I know once they show me how it's done I won't do anything to my transmission to hurt it when I do it in my car.
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Old Oct 12, 2021 | 01:48 PM
  #1588  
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Originally Posted by Fast Dawg
I'm going to wait to do launch control until after I take the Ron Fellows class. That is a part of what they teach you and with my experience there in 2015 I know once they show me how it's done I won't do anything to my transmission to hurt it when I do it in my car.
Yeah, I am hoping to do the StoneMountain course early next year. I need to call and get on the calendar.

Tadge said the DCT won't let you do anything to it that would harm the DCT, however caveat emptor I am not convinced.
I think the main thing when doing launch control is to make sure you have good ground conditions and a straight line.
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Old Oct 12, 2021 | 01:57 PM
  #1589  
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I don’t think you can really mess up the launch control. Set the proper driver mode, foot hard on brake, accelerator floored, you should see 3500rpm, release brake, hold on.

I have only tried it once on my car. We did 4 runs each at Spring Mountain, no one had any transmission issues. I would guess launching puts some stress on the transmission, but I haven’t heard of any failures attributed directly to launching. It seems to me, Spring Mountain, with all the track use, launches, etc would be experiencing a lot of DCT failures if stressing it is a problem, but they indicated that the car has been very reliable.
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Old Oct 16, 2021 | 12:49 PM
  #1590  
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Originally Posted by RT82
All of my issues are visible with the "eye", since there's too many reflections to capture by camera alone, the reflection board was to capture the dimples in a pic. With your statement, I assume you'd accept poor quality and unacceptable problems with any "mass produced automobile", that's okay, just not my standard.
@RT82 I get what you're saying...if you see it everyday, yes, it would be bothersome. I'll pass along my wife's advice. Put your order in for a 22 or 23 and when it's ready, sell your current car for likely what you paid for it - or close - and hopefully GM will have worked out the kinks in the new one. This is my first vet, but I have repeatedly been told that these cars are famous for some QC issues. My final thought is, even at 100K+ this car is still a bargain. Good luck to you brother.
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Old Oct 17, 2021 | 10:42 AM
  #1591  
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While I was looking at the paint/SMC damage to my rear hatch (which came from the factory this way btw), I noticed a couple more areas where someone used some touch up on the hatch.
I am wondering if other people have the same issue with their coupe hatch. It is along the ridge towards the hinge side of the hatch just forward of the holes. You can see the paint even ran there, so it looks like someone just hit it with a spray can (with poor skills): The same problem is on both sides of the hatch.
I suspect this is all due to their handling of the hatch cover in the jigs they use, which look like they have blocks of machined HDPE or something used to lock the cover in place on the tables they use. Sorry, my phone didn't focus on the closer area in some of the pics.







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Old Oct 17, 2021 | 09:54 PM
  #1592  
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Hello,

While I don't own a C8, a friend does. He doesn't use social media, and asked if I would post this for him.

His C8 convertible has an issue which he considers a design flaw. He said that if you open your driver's door on a convertible with the top up, after the battery has died, the window will scrape the A pillar.

Here's a video he had taken to show it:

https://drive.google.com/file/d/1sHP...BMX1jtuDjlIUjs
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Old Oct 17, 2021 | 10:18 PM
  #1593  
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That sucks...the holes at the torx screws look a bit knarly as well....maybe they can be plugged with black oversized grommetts to help conceal it...One last comment of the Paint/Finish dimples in front bumper issue....I looked at (2) - c8s today in East Hills Long Island NY...both 2022... both TR... one coupe ...one convertible....They were delivered 2 weeks ago.....I was able to spot (1) or possibly (2) of the dimples on the front bumper....but in all honesty...Had I not been looking for it...I would never have spotted them....and both cars were flawless...I also could not detect any vertical lines under the side view mirrors.....that being said...my allocation is now down to 150 at Macmulkin in NH...and so I'm not gonna sit on the side lines any longer.....gonna pull the trigger and place the order....I sent in the deposit February 2021...cant wait
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Old Oct 18, 2021 | 05:39 AM
  #1594  
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thanks for the thread

Last edited by guitarvenue; Oct 18, 2021 at 05:40 AM.
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Old Oct 18, 2021 | 08:39 AM
  #1595  
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Originally Posted by Raidin
Hello,

While I don't own a C8, a friend does. He doesn't use social media, and asked if I would post this for him.

His C8 convertible has an issue which he considers a design flaw. He said that if you open your driver's door on a convertible with the top up, after the battery has died, the window will scrape the A pillar.

Here's a video he had taken to show it:

https://drive.google.com/file/d/1sHP...BMX1jtuDjlIUjs
It's not a design flaw. Your friend simply needs to re-index the windows. This happens whenever you have a dead battery. The procedure on how to re-index the windows is in the owners manual. Have your friend read it and then re-index them.

The Corvette windows are designed to open around 1/4" or so as soon as you open the door so as to clear the A pillar and the roof, and will then fully close after you close the door. It's called "indexing".

PS - While you are at it, you might want to tell him to read the rest of the owners manual so he can get a better feel for any other nuances about the car.

Last edited by Dave O; Oct 18, 2021 at 08:43 AM.
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Old Oct 18, 2021 | 09:21 AM
  #1596  
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Originally Posted by Stangslayer
No- not if you need a reflection board to find them. At the end of the day it’s a mass produced automobile.
Originally Posted by RT82
dohabandit....thanks for helping verify this dimple issue.

I will stop beating this horse to death after posting this photo; this is a reflection board used by Professional Dent / Ding removers, waves is the reflection help them see and correct the ding while they are pushing or pulling the ding out. Please notice the 2 waves on the 3rd line from the bottom, the 2 wave reflections you see are 2 of the 10 dimples on the front bumper cover.

Also, using dohanbandit's method, the video (Link Below) shows the crease under each mirror, follow the reflection of the white portion under the driver's mirror.
At 5:48 in this video, you can see the inside of the bumper like there's some guide or something that I suspect is glued to the bumper itself like wiring guides? I have a red mist and the same two dimples. Not a chance I'm letting the dealership mess with it after watching what it takes to remove that front bumper. :-)
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Old Oct 18, 2021 | 12:11 PM
  #1597  
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Originally Posted by Dave O
It's not a design flaw. Your friend simply needs to re-index the windows. This happens whenever you have a dead battery. The procedure on how to re-index the windows is in the owners manual. Have your friend read it and then re-index them.

The Corvette windows are designed to open around 1/4" or so as soon as you open the door so as to clear the A pillar and the roof, and will then fully close after you close the door. It's called "indexing".

PS - While you are at it, you might want to tell him to read the rest of the owners manual so he can get a better feel for any other nuances about the car.
Thanks for the reply. I talked to my friend about what you said, and he told me he's been through the manual more than once, and didn't see this. He said you have to open the door to unlatch the frunk to get to the battery, which is the main problem. Where in the manual is this indexing procedure?
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Old Oct 18, 2021 | 12:25 PM
  #1598  
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Originally Posted by Raidin
Thanks for the reply. I talked to my friend about what you said, and he told me he's been through the manual more than once, and didn't see this. He said you have to open the door to unlatch the frunk to get to the battery, which is the main problem. Where in the manual is this indexing procedure?
Page 30 in the owner's manual.
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Old Oct 18, 2021 | 01:16 PM
  #1599  
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Originally Posted by Zixxer
Page 30 in the owner's manual.
I think @Raiden is talking about opening the door while the battery is dead which is the only way you can get access to the battery unless the frunk is already open. Hopefully it doesn't cause permanent paint damage to the A pillar. You could probably connect power to the alternator wire from underneath the car to open the frunk but that would be a hassle. You could run a charging wire to outside the frunk if you are really concerned about it happening in the future. Or perhaps a cable connected to the frunk latch like the one inside the car.

But, yes, the windows will likely need to be re-indexed after a power loss.
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Old Oct 18, 2021 | 01:18 PM
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Originally Posted by Raidin
Hello,

While I don't own a C8, a friend does. He doesn't use social media, and asked if I would post this for him.

His C8 convertible has an issue which he considers a design flaw. He said that if you open your driver's door on a convertible with the top up, after the battery has died, the window will scrape the A pillar.

Here's a video he had taken to show it:

https://drive.google.com/file/d/1sHP...BMX1jtuDjlIUjs
Did this cause any permanent paint damage to the A pillar when the door was opened once?
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