ffr1352

So, after a careful 500 mile break-in i get the check engine light at 600 miles. The attached print outs are from onstar and the dealership scan. Do you think this is a quick fix or more than 30 days, and just plan to do a lemon law buyback? The dct started messing up high rpm shifts when in tour mode acting like fuel cut off kicked in, the radio wouldn't load a times on the display, remote start quit working... otherwise the cars seems good!
PS- Yes, I am pissed off. I feel the pain of the probably 10% other corvette buyers who have these lack of quality aggravations. Chevy, please sell the corvette brand to Toyota.

Mitchell_B

So these codes point to a malfunction in the data loop or CAN system - communication area network or data loop where control modules talk to one another. This might be a glitch or it might turn out to be a persistent problem. If the car otherwise drives normally, I would clear the code to see if it comes back. Otherwise, Make an appointment with your dealer and get this issue on record. Insofar as a repair - it could simply be a glitch or the problem could range from a loose connector to a defective cable or module. You would have to dig deaper.

Z0HS1CK

So sorry OP. I'm also at 6xx miles so i'm still in the nervous stage. I really feel like any day i get in the car, will be the day i experience what most feel with the C8 generation. Just random out of the blue issues that require major repairs.

But so much for opting for a 2nd MY to prevent any issues.

combatninja

I'd not get ahead of yourself and let them have a crack at fixing it. Hopefully it is just a bad module somewhere causing all the codes. Give them a chance to sort it. Wishing you good luck.

hcvone

battery connections tight?

Phil1098

Why has everyone become so quick to jump onto a buy back lemon case? OK, so the car has a problem, isn't that WHY the cars come with a warranty? Since Toyota is perfect, and Jesus works second shift at the Toyota plant, why do they include a warranty on their cars? Are all their service bays for oil changes only? I would take a deep breathe, let GM fix it, and enjoy the car.

Z0HS1CK

Phil it’s because we all seen this movie before.

Something as simple as a code, turns into a 2-3 month wait as your car sits in the dealer waiting for parts and/or to get fixed.

I guess social media ruined it because everyone is quick to post problems but never when the car runs perfectly.

rjacobs

Thats not how lemon law works... You dont get to pro-actively claim the 30 days.

You dont get to even discuss lemon law until the 30 days or usually 3-4 repair attempts for the same problem in the first year or two(depending on the state).

ETA: I've been through a lemon law buyback process a few years ago with a lawyer who specializes in it.

23/C8Z

Could be as simple as a connector not secured.

That many systems affected should point them directly to the connector or ground etc that is the issue.

And worst case after 30 days is you call 1800 my lemon and be done with it.

Best of luck.

Please keep us all in the loop as we learn from one another here. Great resource.

rjacobs

Was in Missouri at the time...

30 days total out of service or 4 repair attempts for same issue in the first 12 months of ownership I am 99% certain was the Missouri law. I hit both. Car was a Hyundai. I got a lawyer who specialized in lemon law, I think cost me 750 bucks at the time(probably at least double that now as that was 10 years ago). I had every piece of documentation from the service department(they fired the parts cannon at the car and Hyundai Korea engineers were involved with no resolution). He made an appointment with service manager, dealer principal, manufacturer area rep(dont know exactly his title), and I believe a dealer attorney was in the room. He presented evidence to them that we met both of the requirements for lemon law and asked for a 48 hour decision on buying back otherwise we would file lemon law. If they do a buy back they get the vehicle back with a clean title not a branded title. Its in their interest to do that. I believe we asked for MSRP+tt&l minus reasonable use(I think I put 6k miles on the car, dont remember). They called him in like an hour or two and agreed to it I think because I wasnt asking for anything crazy. They wanted to put me in a new car(with a healthy discount) and give me MSRP+TTL allowance for the lemon(no deduction for usage), but nothing they had really excited me at the time and I didnt want another of the same car that might have the same issue, otherwise that deal would have been overall better financially than what I got(msrp+ttl-usage). Overall the dealer through the whole ordeal treated me right and I wouldnt hesitate to go back to them if they had something that interested me. I have never read of widespread issues with that particular car and that particular issue I had so I believe it was truly a lemon and not a systemic problem.

Phil1098

When I was selling new cars I told a customer of mine to use the lemon law and I represented them at the meeting. It was a 1999 Oldsmobile Aurora and it had a wind noise so loud you'd swear the windows were down. Our service department did everything they could think of too, from taping every opening shut, etc. and never could find the cause either, they did try though. I talked to Oldsmobile about it and they told me they knew of some that had that problem, but they couldn't figure out the problem and have since moved on to the new redesigned cars. THAT pissed me off, here is a car under warranty that the people now hate and the manufacturer has just moved on and left them behind. Everyone in the store asked me if I was afraid of getting fired for going against Oldsmobile, I said if the dealer owner wants to fire me for doing the right thing, I don't want to work for him. I went to the meeting and buried them and my customer got a brand new 2001 with zero mileage use penalty and were beyond happy.

RFZ

just a note according to jd powers chevrolet has fewer reported new car problems than toyota

adamsocb

Your codes look like the known problem with the Z06 wiring harness. Ask your dealer to check Technical Service Bulletin #23-NA-178.

I can’t find it on-line, and a search here does not show it, but if you look at the other forum in the Z06 section you will find it.

The problem is described as an “out of position build of the engine wiring harness causing it to become chafed near the left rear lower control arm.” The chafing causes wires to short or ground out causing the codes.

The fix is to repair the wiring and reposition the harness so it does not happen again. Not a big deal at all.

TBIRD57

asap

Panfish

I agree it’s premature to shoot this car in the hood and walk away. My concern at 1100+ miles isn’t the car as much as support should I join the “it sucks to be you” club. We are all one shift away from joining…

Exia

Man if you think Toyota is immune to having check engine lights I have a bridge to sell you.

**** happens, it sucks but you do what you can.

Hopefully it gets resolved.

TTRotary

Doesn't sound too serious, BUT, however this goes, I would certainly not wait to report this to the dealer so it gets documented. That way the clock is ticking, the ball is in their court, and you have done your part as owner. The way cars and service shops at dealers are today, it is 95% certain they will just replace until the problem does not recur. The days of tinkering and troubleshooting are over. Sounds like a harness issue but who knows.

What I would not do is ignore the problem and just hope it goes away. It won't.

ffr1352

What is misleading about the jd powers reported new car problems is that most of the reported problems are "annoyances" not the type of new car problems that leave you stranded or requiring visiting the dealer before leaving you stranded. If you look at consumer reports least dependable models listing you find many Chevy's and no Toyotas. From having visited over 4 major chevy dealerships multiple times since the c8 was released (getting my cars serviced, etc.) every time i have looked in the service bay there has always been at least one and many times several c8 corvettes on the lift with engines/transmissions removed. When i looked at Supra's there weren't any cars in the service bay with engine/transmissions removed.

I called/visited 3 dealerships about fixing my current z06 and all said the soonest they could see me was at least several days! I dropped car off at selling dealership early Friday, and the mechanic hasn't even had it on the lift yet just the service advisor's tech scan! Shortage of mechanics, too many cars failing or no repair parts?

Thanks all for your input and will let you know the outcome. This forum is a fantastic resource!

Michael A

I would tell the mechanic about the TSB that was adamsocb mentioned here. It might save him and you a lot of time.

Also I don't know how much you drive you Z06, but some people let their batteries get low from sitting, which can cause all kinds of electronic abnormalities.

Mitchell_B

This TSB addresses a different issue and would be a concern on a car with different DTCs and more likely on a car with more mileage and time to actually damage the harness.

https://www.midenginecorvetteforum.c...otential-issue