** C7 Reported issues and resolutions thread **
Drifting
Joined: Mar 2011
Posts: 1,519
Likes: 7
From: Indy
Someone brought this up on a earlier post in this thread. My tire temp pock gauge always reads "warm" no mater what. It has been below 32 degree's outside on a cold start up, and it shows "warm".
Is GM aware of the issue? THanks
Is GM aware of the issue? THanks
Drifting
Joined: Nov 2002
Posts: 1,688
Likes: 201
From: Loveland, CO
VIN 3495, 3LT, Z51. Same issue as previously frequently mentioned, dash display dims almost to black in low light. After driving out of my garage yesterday, during the daytime, display did not lighten up for miles. Brightness **** all the way up.
Ralph.
Ralph.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
I was around for the C6 launch. I don't remember this many severe issues within the first month of delivery. Maybe they did but hearing a C7 locked all four wheels at 40 makes me have visions of final destination when I'm doing some spirited driving on winding roads with 1000' drop offs. 
Of course, I came into the C7 expecting issues. I didn't expect as many, but certainly knew it was a first year and I would be a guinea pig.
That being said, I'm sure there's going to be a few recalls (especially for the wheel lock up thing) and there will likely be lots of little warranty issues throughout the years. I have a 6 year warranty now, but I'm sure I'll sell the car in 3-4 years for a new C7.
Instructor
Joined: Oct 2013
Posts: 185
Likes: 7
From: Baltimore Maryland
The dealer said it's the differential......There have been several reports of C7's delivered without differential fluid. What was the cause of mine?
No idea yet. Btw locking all four wheels was CRAZY Scary!
Instructor
Joined: Oct 2013
Posts: 185
Likes: 7
From: Baltimore Maryland
Mine too along with the rest of the problems
Instructor
Joined: Oct 2013
Posts: 185
Likes: 7
From: Baltimore Maryland
Just got the car back on Friday and almost died on Saturday...
One day with my new c7 and after I installed the targa top I got a broken windshield , just got her back Friday and yesterday while on track mode selection with rev matching on the car while running at 40 miles on a turn it went hey wire and locked all 4 wheels and jumped to a dead stop, a miracle the cars behind me did not crash on me, trans made horrific noise and start smelling.....also other electronic problems
690 miles on the C7 Z51
Hell of a day yesterday, after all the fun with the C7 tow truck broke down on the way to dealer, picture is the transfer from flat bed to flat bed!
One day with my new c7 and after I installed the targa top I got a broken windshield , just got her back Friday and yesterday while on track mode selection with rev matching on the car while running at 40 miles on a turn it went hey wire and locked all 4 wheels and jumped to a dead stop, a miracle the cars behind me did not crash on me, trans made horrific noise and start smelling.....also other electronic problems
690 miles on the C7 Z51
Hell of a day yesterday, after all the fun with the C7 tow truck broke down on the way to dealer, picture is the transfer from flat bed to flat bed!
The dealer said it's the differential......There have been several reports of C7's delivered without differential fluid. What was the cause of mine?
No idea yet. Btw locking all four wheels was CRAZY Scary!
Racer
Joined: Sep 2013
Posts: 302
Likes: 3
From: Sarasota Florida
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Drifting
Joined: Sep 2013
Posts: 1,949
Likes: 143
From: Alpharetta, GA
Logical explanation is I somehow activated it while waiting at the light and never noticed.
Instructor
Joined: Oct 2013
Posts: 165
Likes: 14
From: Canyon Lake TX
additional issues
We had a 3 hour drive from the dealership after picking up my Stingray. After two hours of driving the XM radio randomly changed channels and the A/C window on the screen kept popping up and down. Stopping and shutting the car down and restarting did not fix the issue. I will be contacting the dealer for resolution. Also drivers seat had exacto blade marks on it. Will have it addressed as well.
Last edited by racer778; Oct 29, 2013 at 12:10 AM.
Intermediate
Joined: Oct 2013
Posts: 43
Likes: 0
It's funny you mention the e-brake. Yesterday at a traffic light, I put the car in gear and the next thing I noticed (after the car almost stalled) the e brake is on. My first thought was the hill assist had something to do with it.
Logical explanation is I somehow activated it while waiting at the light and never noticed.
Logical explanation is I somehow activated it while waiting at the light and never noticed.
Intermediate
Joined: Oct 2013
Posts: 43
Likes: 0
Also one day the heat and both heated seats turned on by themselves hasn't happened again so far. The post about all four wheels locking up is very disturbing. I had a previous z06 this car feels way better in every way except maybe power. But all these issues are taking away from the enjoyment
Instructor
Joined: Sep 2012
Posts: 143
Likes: 53
Heat Issues
Just experiencing the first cool weather where there was a call for the heater. I had the unit set in "AUTO" mode and heat set at 72 and it blew cold air for what seemed to be 5-10 minutes.
Only after I set the temp in the mid-80's did a little heat come out of the vents. The cabin ambient temp was in the low 50's.
Had no issue with the air cond., but the heat is not acting right at all. Will have the dealer check it out, but wanted to see if anyone else had a similar experience.
Only after I set the temp in the mid-80's did a little heat come out of the vents. The cabin ambient temp was in the low 50's.
Had no issue with the air cond., but the heat is not acting right at all. Will have the dealer check it out, but wanted to see if anyone else had a similar experience.
Burning Brakes
Joined: Jan 2005
Posts: 1,055
Likes: 24
From: Cary NC
I have noticed these same issues with upper and lower vent temps in automatic temperature control mode. My old C5 did the same thing. I have a suspicion that this is a designed feature rather than a bug (I still hate it).
I think the cooler air blown through the top vents is supposed to sink while the warmer air from the footwells is supposed to rise, creating an equilibrium in the car at the desired temperature. In reality of course, it never works that way. You feel cold air blown onto your face and you feel cold!
The workaround is to take the A/C out of automatic mode and just use heating with the mode selector set to footwell vents only. Once you get up to your desired temp, you can try going back to automatic, but it will eventually start blowing cool air out of the top vents again when things get too toasty.
I think the cooler air blown through the top vents is supposed to sink while the warmer air from the footwells is supposed to rise, creating an equilibrium in the car at the desired temperature. In reality of course, it never works that way. You feel cold air blown onto your face and you feel cold!
The workaround is to take the A/C out of automatic mode and just use heating with the mode selector set to footwell vents only. Once you get up to your desired temp, you can try going back to automatic, but it will eventually start blowing cool air out of the top vents again when things get too toasty.
Instructor
Joined: Oct 2013
Posts: 185
Likes: 7
From: Baltimore Maryland
The differential may caused the trouble to begin with but was also coupled with the rev matching malfunctioning and the e-brake going hay wire and activating itself
Very dangerous experience
Last edited by Theo Harris; Oct 29, 2013 at 09:47 PM.
Drifting
Joined: Sep 2013
Posts: 1,949
Likes: 143
From: Alpharetta, GA
Before my C7 want hey wire I notice the car getting upset, I did see the parking flashing as the car went into the turn were all weeks locked down
The differential may caused the trouble but was also coupled with the rev matching malfunctioning and the e-brake going hay wire
The differential may caused the trouble but was also coupled with the rev matching malfunctioning and the e-brake going hay wire
Intermediate
Joined: Oct 2013
Posts: 43
Likes: 0
I'm usually in rev match. This seems like a much more serious issue then a messed up screen. Do I need to be afraid to take my wife for a ride on winding roads for fear the wheels will lock up at 80 mph? Crazy not acceptable. I'm becoming very frustrated. All I can say is be cautious guys. This is not a small issue.
Burning Brakes
Joined: Jul 2013
Posts: 1,147
Likes: 107
From: Cherry Hill PRNJ
Infotainment system won't save radio stations to favorite however.
Dave