I feel for you man. 
C8 problems
Le Mans Master
Joined: Apr 2020
Posts: 6,378
Likes: 3,290
What percentage of these "problems" are DOA sub assemblies from suppliers vs errors in BGA during the assembly. The former GM has little control over aside from finding another supplier - if any. The later is totally under their control via the union.
Le Mans Master
Joined: Apr 2020
Posts: 6,378
Likes: 3,290
Post production QC is a "misnomer". If I recall correctly, the dedicated QC holds were a one time thing during the C8 first startup and unfortunately again after the first SD during the 2020MY.
To my knowledge, after that, there were no dedicated post 3800 QC inspections/holds for BGA Only If a vehicle fails one of the many checks during assembly, then it is pulled aside for remediation before being moved along for that specific problem.
How much of the sub-assemblies are tested during assembly is unknown. It would appear that GM is relying on the sub assembly manufacturers to do their own testing and only ship viable tested products to GM - but don't hold your breath. Are radios turned on and tested? Possibly only to test wiring connections. On, then off without trying reception? All a guess without being a BGA employee.
Considering the scope of the project, and especially in the middle of Covid, GM and BGA are doing a decent job. But there are certainly going to be hiccups. It's just the nature of manufacturing. They just need to do their best to prevent problems.
To my knowledge, after that, there were no dedicated post 3800 QC inspections/holds for BGA Only If a vehicle fails one of the many checks during assembly, then it is pulled aside for remediation before being moved along for that specific problem.
How much of the sub-assemblies are tested during assembly is unknown. It would appear that GM is relying on the sub assembly manufacturers to do their own testing and only ship viable tested products to GM - but don't hold your breath. Are radios turned on and tested? Possibly only to test wiring connections. On, then off without trying reception? All a guess without being a BGA employee.
Considering the scope of the project, and especially in the middle of Covid, GM and BGA are doing a decent job. But there are certainly going to be hiccups. It's just the nature of manufacturing. They just need to do their best to prevent problems.
Heel & Toe
Joined: Dec 2020
Posts: 20
Likes: 18
Got a check engine light on today. Hooked up an OBD reader and got these codes (P0868, P0815, P0700). Anyone else get these codes? Got a response from Chev diagnostics to take the car in to service within a day. Anyone know which dealer in the Chicago Western suburbs have a good Corvette Tech?
Car has 670 some miles on it, I still do not drive over 4k rpm for the breakin (do not plan on driving spirited until 1500 miles). Checked for fluid leaks, none apparent. Just wondering if anyone else had these codes and if its an electrical gremlin and that the light may go out on its own. Car appears to drive fine. Hate to have anyone touch the car if its really not needed.
Car has 670 some miles on it, I still do not drive over 4k rpm for the breakin (do not plan on driving spirited until 1500 miles). Checked for fluid leaks, none apparent. Just wondering if anyone else had these codes and if its an electrical gremlin and that the light may go out on its own. Car appears to drive fine. Hate to have anyone touch the car if its really not needed.
1. P0868 stored
2. P0868 permanent
3. P2781 permanent
Anybody else got these codes? What did the dealer do to fix?
Instructor
Joined: Mar 2021
Posts: 138
Likes: 87
From: Bellevue, WA
Pictures engine out for broken spring
Instructor
Joined: Feb 2021
Posts: 154
Likes: 138
From: Mohave Desert
@PatricksPC bro your car....its heartbreaking, talk about major surgery. And brand new....such a bad deal man... very sorry. I hope they fix it soon and more importantly - right.
Instructor
Joined: Jul 2012
Posts: 172
Likes: 163
From: Pawleys Island SC
2022 Corvette of the Year Finalist -- Modified
Modified C8 of the Year 2021 Finalist
3 weeks total in the shop. 1+ week waiting to diagnose, 1+ week waiting on a new amp to arrive, and the rest of the time waiting to install. Hopefully I can keep it out of the shop and put some miles on it now.
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Le Mans Master
Joined: Apr 2013
Posts: 6,671
Likes: 4,143
2020 C8 of the Year Finalist - Unmodified
The button for my glovebox is giving out. Have to press 4 or 5 times to get it to open. Getting worse and worse. Nothing inside to hang it up. I'll have it looked at during my annual oil change coming up next month.
Cruising
Joined: May 2016
Posts: 11
Likes: 14
I find with mine that holding down the button for a second works, while a quick push often doesn't open it.
4th Gear
Joined: Aug 2021
Posts: 4
Likes: 1
From: California
Parasitic draw in C8
You may not be the first, last, ... I am sure many will follow due to the improper charging algorithm that is being used! 
I leave my frunk open when at home plugged in - JIC for when the inevitable jump start is going to be required. Unbelievable no way to open with a dead battery.
I leave my frunk open when at home plugged in -
Le Mans Master
Joined: Apr 2013
Posts: 6,671
Likes: 4,143
2020 C8 of the Year Finalist - Unmodified
Instructor
Joined: Aug 2007
Posts: 239
Likes: 120
From: Westfield, In
Memory seats not working.
I have 7,100 miles on my 3LT 2020. Today, after a morning drive, I got in to go home and the seat did not return to the pre set driving position. When I tried to manually move it forward, at first it wouldn’t move. I had to move the manual fwd **** again and it moved a small amount. I had to keep doing this in order to get it properly positioned. I restarted the car several times. I reset the seat memory, both the exit and driving position- still doesn’t work. I checked the vehicle settings and it is still set for the seat memory to be operative.
my apologies if someone has addressed this already. I tried to search this thread but cannot figure out how to actually get to the responses.
my apologies if someone has addressed this already. I tried to search this thread but cannot figure out how to actually get to the responses.
Intermediate
Joined: Apr 2021
Posts: 33
Likes: 82
From: San Antonio, Tx.
Hearing some of these issues makes my little carpet issue seem not worth mentioning. The passenger side carpet on the right side near the door was not cut correctly. My dealer has ordered new carpet & they said it would take about a month to get it. They will need to remove both seats to replace with correctly cut carpeting. Dealer said that this was the second car with the same issue. This is a 2021
Cruising
Joined: Jul 2021
Posts: 14
Likes: 36
From: Massachusetts
Hearing some of these issues makes my little carpet issue seem not worth mentioning. The passenger side carpet on the right side near the door was not cut correctly. My dealer has ordered new carpet & they said it would take about a month to get it. They will need to remove both seats to replace with correctly cut carpeting. Dealer said that this was the second car with the same issue. This is a 2021
Every issue is an issue
they should be focusing on all quality.