C8 problems
Race Director
Joined: Nov 2017
Posts: 12,747
Likes: 10,635
From: Prosper TX/Austin TX
2020 C6 of the Year Winner - Modified
Not trying to minimize your issue but with all the C8 DCTs out there this is the first I heard of an issue. Forums like this tend to make issues bigger than they are. Id prefer a new tranny than have a dealer tech take it apart.
Has anyone head of this happening before?
Has anyone head of this happening before?
Le Mans Master
Joined: Sep 2012
Posts: 7,146
Likes: 1,939
From: Hagerstown MD
St. Jude Donor '15-'16,'18
I will be interested to see the JD Power and CR stats on the C8. I realize this forum is not a scientific sample of owners but it does appear the C8 does have some serious issues that are appearing in a number of cars. Engine and tranny issues, are in my opinion, pretty serious ones.
Instructor
Joined: Feb 2017
Posts: 232
Likes: 50
From: Oakland CA
Ill bet GM knows exactly how many. What are your numbers?
Software or mechanical issues, don't consider bad code as a major issue. Just my opinion. Love to hear your numbers....
Software or mechanical issues, don't consider bad code as a major issue. Just my opinion. Love to hear your numbers....
Last edited by Jimp94605; Dec 12, 2020 at 07:02 PM.
Drifting
Joined: Feb 2017
Posts: 1,778
Likes: 902
Cruising
Joined: Dec 2020
Posts: 11
Likes: 20
From: Newport beach
Car bucked when coming to a stop from day 1 and now needs a transmission at 560 miles. Also its stalled. how the f*** do you stall and automatic?
Last edited by sdemetri; Dec 14, 2020 at 08:02 PM.
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FarmBoy
Joined: Jul 2020
Posts: 172
Likes: 88
From: Hope Indiana
The car is not an automatic with a torque converter it is a dual clutch manual transmission the Computer controls engaging and disengaging on both clutches so sounds like it may have a issue not disengaging clutches. We have not had any issues with ours but it is a little different sensation that a torque converter when the car starts to move, hopefully warranty will cover it.
FarmBoy
Joined: Jul 2020
Posts: 172
Likes: 88
From: Hope Indiana
FarmBoy
Joined: Jul 2020
Posts: 172
Likes: 88
From: Hope Indiana
I normally don’t buy extended warranty but because this car was a new design we decided to go ahead and do it
Last edited by jayshoaf; Dec 14, 2020 at 11:05 PM.
Instructor
Joined: Feb 2017
Posts: 232
Likes: 50
From: Oakland CA
My extended warranty was 84 months or 56k miles. I bought it when I paid for my used C7 at the dealer. $2,000 sound right, never had to use it. Sold the car I will be getting extended coverage on my C8. Peace of mind is a good thing.
Last edited by Jimp94605; Dec 15, 2020 at 06:51 AM. Reason: Added content
Instructor
Joined: Nov 2011
Posts: 119
Likes: 34
UAW production workers take no pride in workmanship and there is very little real Quality Control on this car - or it would not be having the thousands of problems it is having. GM is no way to run such an old and established car manufacturer-PATHETIC
Le Mans Master
Joined: Sep 2012
Posts: 7,146
Likes: 1,939
From: Hagerstown MD
St. Jude Donor '15-'16,'18
Transmission and drivetrain issues were a major factor in my decision to trade my C7 just before the warranty expired. With what is being reported with the C8, I am happy I didn't jump on the bandwagon early.
Racer
Joined: Dec 2019
Posts: 396
Likes: 63
Porsche skated away from its problem with IMS bearings. It reimbursed owners who had paid out for repairs; But: anyone who had not yet paid 2500 + for repair, or for an entire new engine at 20,000 +, were left out in the cold, to suffer their loss of value in silence.
I don't believe GMC will have the same luck if there are recurrent problems, even if spread widely over electronics, transmissions, valves, etc, etc. GMC has heard of "bad press", as well as class action suits. Forums like this enable broad dissemination of info, and easy assembly and identification of owners with problems.
I don't believe GMC will have the same luck if there are recurrent problems, even if spread widely over electronics, transmissions, valves, etc, etc. GMC has heard of "bad press", as well as class action suits. Forums like this enable broad dissemination of info, and easy assembly and identification of owners with problems.