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** C7 Reported issues and resolutions thread **

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Old Dec 31, 2013 | 12:14 PM
  #801  
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Default Sharp driveway turning

I love my C7!!! #2726...only issue with me is the jerking of the front wheels during a sharp low speed turn in a parking or driveway movement...any one experience it and have a solution.

I've owned three prior Corvettes (1980, 2003 & 2008) and never remember that issue.

Side note: My wife and I did the factory and museum tour for our delivery process and had Bobby as our guide...Everything was exciting and a great experience.....I'll remember it for ever!!!! Many thanks!!!
Old Dec 31, 2013 | 12:42 PM
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Originally Posted by Rz51vette
I love my C7!!! #2726...only issue with me is the jerking of the front wheels during a sharp low speed turn in a parking or driveway movement...any one experience it and have a solution.

I've owned three prior Corvettes (1980, 2003 & 2008) and never remember that issue.

Side note: My wife and I did the factory and museum tour for our delivery process and had Bobby as our guide...Everything was exciting and a great experience.....I'll remember it for ever!!!! Many thanks!!!
Lots of info on several threads about this issue. Two key reasons, especially on a Z51 are the racing “summer tires” and the fact that the C7 has a 2 foot tighter turning radius than the C6. Solution; when it’s cold don’t turn as tight by ~1/2 wheel turn! If you want a multipage explanation of the issues with pics, look at this page on my web site: http://netwelding.com/Reports_Vette_Info.htm
Scroll down to the title Wheel Chatter (that is what GM calls it.)
Old Dec 31, 2013 | 01:30 PM
  #803  
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Back to the hatch closing issue; I reread the article from Sept. '13 that touts the AHV (active hatch vent) technology that includes the SMA (shape memory alloy) and the activator that is supposed to allow for 30% less effort when closing the hatch. If this technology is supposedly working as designed on our cars how bad would it be without it? (Yes, I realize the hatch closes easily with a door or window open, but that is not always the case.) In my opinion, this is more like a gimmick that really hasn't proven itself based on the difficulties many have closing the hatch. This is not a deal-breaker for me liking my car, but just one of those irritants that should be easy to fix and should be addressed as the C7 evolves.
Old Dec 31, 2013 | 01:35 PM
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Originally Posted by Rz51vette
I love my C7!!! #2726...only issue with me is the jerking of the front wheels during a sharp low speed turn in a parking or driveway movement...any one experience it and have a solution.

I've owned three prior Corvettes (1980, 2003 & 2008) and never remember that issue.

Side note: My wife and I did the factory and museum tour for our delivery process and had Bobby as our guide...Everything was exciting and a great experience.....I'll remember it for ever!!!! Many thanks!!!
there is a TSB on that check with your dealer. it is caused by the wide tires
Old Dec 31, 2013 | 03:11 PM
  #805  
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Vin#1533. Since I keep my C7 inside and on a battery tenderand covered, I have the following question. When inserting the power cord in the rear socket, of course the cargo lights come on and won't go off unless I completely shut the hatch on the cable. Seems like this will ruin the weatherstripping over time. Any better way I am interested in trying including removing the bulbs. Thanks in advance for any help.
Old Dec 31, 2013 | 03:36 PM
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Unfortunately there is no other option I shut the trunk with the cord hanging out on the side.
Old Dec 31, 2013 | 03:49 PM
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Originally Posted by lggque
Unfortunately there is no other option I shut the trunk with the cord hanging out on the side.


Thanks for the reply. Have a great New Year!
Old Dec 31, 2013 | 05:34 PM
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I saw the same issue with the rear charger port. Didn't want to close deck on wire. Hooked up under hood to positive and negative ground. Can leave hood open a little, or run cord under the car.

Ralph.
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Old Dec 31, 2013 | 05:40 PM
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Originally Posted by Z51SlowMotion
Vin#1533. Since I keep my C7 inside and on a battery tenderand covered, I have the following question. When inserting the power cord in the rear socket, of course the cargo lights come on and won't go off unless I completely shut the hatch on the cable. Seems like this will ruin the weatherstripping over time. Any better way I am interested in trying including removing the bulbs. Thanks in advance for any help.
Light will turn off after approx. 10 minutes, it's part of battery run down protection. I have the hatch closed just enough to touch the cord and my hatch light is off. Try it, you'll like it!
Old Dec 31, 2013 | 05:51 PM
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Originally Posted by Pisswilly
Light will turn off after approx. 10 minutes, it's part of battery run down protection. I have the hatch closed just enough to touch the cord and my hatch light is off. Try it, you'll like it!


I did the same. Mine is in the garage, uncovered so watched as the light went off and stayed off!
Old Dec 31, 2013 | 07:20 PM
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Originally Posted by JerryU


I did the same. Mine is in the garage, uncovered so watched as the light went off and stayed off!
Thanks..I changed mine and works like a charm!
Old Dec 31, 2013 | 08:08 PM
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Default Flashing screen

Just picked up my base Lt2 2 weeks ago vin7430 the screen went crazy. took it back next day. Gm overnighted new screen all is fine. Interesting sidelight. Why dash was apart they installed an ignition wire for radar detector coming out thru the defroster vent. No ugly cords anywhere yea all is fine. Drove it to California fem phoenix best ride ever.
Old Jan 1, 2014 | 07:39 AM
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Originally Posted by PAmotorman
there is a TSB on that check with your dealer. it is caused by the wide tires
?

Could you tell us more about the TSB? This is the first time I've heard that there may be a fix.
Old Jan 1, 2014 | 08:07 AM
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Originally Posted by Jeff M C
?

Could you tell us more about the TSB? This is the first time I've heard that there may be a fix.
As noted in my above post, repeated here: "Lots of info on several threads about this issue. Two key reasons, especially on a Z51 are the racing “summer tires” and the fact that the C7 has a 2 foot tighter turning radius than the C6. Solution; when it’s cold don’t turn as tight by ~1/2 wheel turn! If you want a multipage explanation of the issues with pics, look at this page on my web site: http://netwelding.com/Reports_Vette_Info.htm
Scroll down to the title Wheel Chatter (that is what GM calls it.)"

You'll see my research with pictures shows it is much more than wide tires in the C7. My C6 had the same width tires and the Z06's were even wider and neither had the issue as much as the C7! On my web site I describe Ackerman steering which is part of the issue, the effect of the low profile racing type summer tires (worse with the Z51) GM info about the tighter turning radius in the C7 and their "it's no problem" statemant in the Owner's Manual. The solution I suggest, turning the steering wheel less when the tires are cold- works!

Last edited by JerryU; Jan 1, 2014 at 02:06 PM.
Old Jan 1, 2014 | 11:07 AM
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JerryU, this is the first I have heard of a TSB on the tire chatter issue also. I doubt there is anything can be done at this stage of the game.

I read and understand you article on the cause of the chatter, but do not agree with your solution of turning less sharply to resolve the issue. Why have a sharper turning radius if you can't use it? I wonder how many purchasers will track their car and take advantage of the GM design perimeters. I would suspect that the percentage of "street" drivers will far outnumber the track buyers. Should a car and the tires be designed for the occasional track user, or the larger number of daily drivers? This may be as issue of too many ordering the Z51 option, but I would guess the front steering geometry is the same for all these cars.

Anyway, just my 2 cents worth.

Ralph
Old Jan 1, 2014 | 11:26 AM
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Originally Posted by rponfick
JerryU, this is the first I have heard of a TSB on the tire chatter issue also. I doubt there is anything can be done at this stage of the game.

I read and understand you article on the cause of the chatter, but do not agree with your solution of turning less sharply to resolve the issue. Why have a sharper turning radius if you can't use it? I wonder how many purchasers will track their car and take advantage of the GM design perimeters. I would suspect that the percentage of "street" drivers will far outnumber the track buyers. Should a car and the tires be designed for the occasional track user, or the larger number of daily drivers? This may be as issue of too many ordering the Z51 option, but I would guess the front steering geometry is the same for all these cars.

Anyway, just my 2 cents worth.

Ralph
First, I have found it is mainly a problem with cold tires. When they are warm it is less of an issue. This time of year, for me, it is only some days and when I start out in the morning. When the tires warm up it is much less of an issue. I don't track my car but have a 270 degree exit ramp I take all the time! So far have hit 0.95 "g's" and will exceed 1 as the weather is warmer! If I lived in a cold climate and wanted to use the car as my daily driver (assuming little snow) I would buy winter all-season tires. Several forum comments have said the issue with chatter is gone!
GM could have left the turning radius the same as the C6 and from what I have found, using less than full lock, t would be more like the C6. If you don't get the Z51 option the standard tires should be less of an issue. I purchased the Z51 to use the capability. Turning ½ turn less when the tires are cold is a good compromise for me. In my opinion, I prefer GM built the car just the way they did, but to each his own.

Last edited by JerryU; Jan 1, 2014 at 12:31 PM.
Old Jan 1, 2014 | 01:52 PM
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Originally Posted by Chevy Cust Svc
Hi Brian,

You are very welcome! I am glad that you got everything taken care of at your dealership. You are all set now since they topped off your diff fluid.

Enjoy!



You are also very welcome, I am glad that I can be here to help out!




LOL thanks for putting me on the spot, Time. With this one I do not mind at all. We are working on getting a plan together for the center console concerns. I do know that this concern has been reported to the appropriate departments. I do not have a plan just yet, but when something becomes available, I will let y'all know ASAP.

Thanks!

I hope y'all have a wonderful New Year,

Kelly J.
Chevrolet Customer Care
Thanks for the follow-up information. Just trying to figure out if I want to change it now or wait for an "upgrade" and not have to do this twice (possibly).

Have a great New Year and thanks for all the help.

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Old Jan 1, 2014 | 02:00 PM
  #818  
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Default Cargo Light & Charger Hook-up, Vin # 1533

Originally Posted by lggque
Thanks..I changed mine and works like a charm!

Happy New Year to All:

Thanks for all the replies on the closing the hatch and charger hook up. I quess I did not wait long enough for the lights to time out.
Old Jan 1, 2014 | 06:34 PM
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Hi Kelly
I had the update for the hvac but my heat and air are still an issue. Also, I still have the dim dash issue. Is there a new fix?
Thanks,
VIN 1398
Steve

Last edited by srosenbldr; Jan 2, 2014 at 04:30 PM.
Old Jan 2, 2014 | 08:27 AM
  #820  
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HI, I dont know this i have z51 3lt an I found out that the batterie cover have space for a toll i don't know what is use for. I check my cousins c7 as well and he doesn't have it either I call my sales man and they gonna investigate, you can check you owner manual if is there you have it too.

Last edited by Noel Ramos Arita; Jan 2, 2014 at 09:32 AM.



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