[Zombie Rocket]

I have had my 2016 2SS for 26 days as of this morning. Last night I parked the car, went into a store, returned, started up my car and went about my way. I quickly noticed that my HUD displayed "0" as my speed. Looking down, I noticed all my electronic instruments were inoperable. They were THERE, but all were sitting at zero except for my battery gauge. Gas = empty. Oil temp = zero. Even the physical tachometer and speedometer were inoperable.

Just as quickly, I started to get warnings to service my stabilitrack, airbags, and a few other things. My stabilitrack and airbags were both showing warnings on the instrument panel.

MyLink worked fine, as did my lights.

I pulled over and shut completely down. Waited a sec. Restarted with the same results. Tried restarting again. Same thing.

I drove home and decided to leave it sit for a bit and remove my key fob from the equation for a few minutes. I came back about 5 later and started it up...everything was back to normal.

I called Chevy first thing this morning...they had no previous reports of this. I'll call my dealer as soon as they open.


So I figure this is a huge software bug of a safety issue. Just because it works NOW doesn't mean it's gonna work if I'm driving down the freeway, or if (God forbid) my airbags don't deploy in an accident. More than a little unnerved by this development.

[Sledgehammer70]

This is the section you're looking for:http://www.camaro6.com/forums/forumdisplay.php?f=257

[Glen e]

Once again, check your grounds....

[SSport16]

Sounds like a battery issue, maybe low voltage/low charge?

[nyrfan]

this seems to be the 2nd report of something similar (although below seems to be fixed by a shorted harness in the taillight):

http://www.camaro6.com/forums/showthread.php?t=434345

[KMPrenger]

Originally Posted by nyrfan

this seems to be the 2nd report of something similar (although below seems to be fixed):

http://www.camaro6.com/forums/showthread.php?t=434345

That person reported they was able to correct the issue by turning the lights on and off.

Today he reported that the dealer had to replace the rear taillight harness due to a short.

OP, please let us know if the solution to your issue is the same.

[FlightSoftware]

What concerns me is how a failure of a minor subsystem (lighting) is bringing down the cockpit display(s). What design (or lack thereof) is linking those?

[SpeedIsLife]

Originally Posted by FlightSoftware

What concerns me is how a failure of a minor subsystem (lighting) is bringing down the cockpit display(s). What design (or lack thereof) is linking those?

Think of them like a string of Christmas lights...if there's an error somewhere it may trip a protection system to keep a minor problem from becoming a larger one.

Just a guess.

[FlightSoftware]

Originally Posted by SpeedIsLife

Think of them like a string of Christmas lights...if there's an error somewhere it may trip a protection system to keep a minor problem from becoming a larger one.

Just a guess.

Probably not a bad guess, but it seems like a bad way to do it. The tail lights ought to be powered and fused separately from other stuff (like the cockpit display). If there's a problem with that system, shut it off. The cockpit display failure was visible... wonder what else failed we didn't see?

The most that -should- have happened with that short was for some sort of indication to light up on the panel, and at worse, just the loss of the brake / back up lights. That ripple effect means the car as a whole is "brittle" (one failure takes everything down).

If we are going to computerize these things (and apparently we are), we ought to be a little more careful about things like fault detection / isolation, graceful degradation (one failure doesn't cripple entire vehicle), critical system redundancy, etc. This time it was the cockpit display, what if next time a short in a minor system shuts the car down / prevents starting, or locks up the brakes, or prevents the ABS from functioning, or turns off the airbags, or... None of those SHOULD happen, but I would have lost a bet that a wiring harness failure would kill the gauges.


Bleah. Probably all about cost.

[MMC]

The entire vehicle runs on a LAN.

[DenverTaco07]

Would this be logged in OBD?
Also, do you have onstar; i think they should also be getting a diagnostic report if it triggered anything.

[ChefBorOzzy]

Created an account over 5 years ago and just posted for first time? Color me impressed.

[DenverTaco07]

Originally Posted by ChefBorOzzy

Created an account over 5 years ago and just posted for first time? Color me impressed.

wow, that is quite impressive!!

Ford operative?

[90503]

...When the web-site changed servers or whatever they did, I think some guys lost all their posts or had to start a new account....not sure....