Dash stopped working. All warning lights came on.

cbo2188 · 03-03-2021, 07:26 PM

Hi all

I have a 2017 Camaro 2.0L turbo manual transmission. It has about 20,000 miles. While I was driving, my dash and radio screen became super bright, gauges stopped working, started chiming all the warning lights, airbag light, turn signals stopped working.

Then it stopped and came back shortly after.

I wasn't able to get a video while driving, but took some photos when I finally got home. The engine was running in these pics.

I searched the forum and some had an issue with the rear wiring harness??
Just wanted to get some thoughts on this before a possible high repair bill.
Oh and my warranty ended back in November 2020.

Thank you for your help.

koolkat68 · 03-03-2021, 07:46 PM

May be time to remove the negative battery cable for a while to reset the communications between the computers.

arpad_m · 03-03-2021, 08:58 PM

Do you have wider wheels and tires in the rear? I assume the harness problem you refer to is the damage caused by rubbing with wide tires, but that should not happen with the stock setup.

If not, then remove the negative terminal as koolkat68 suggested, wait 10 minutes or so to force a hard reset of the system and hope it's just a fluke. If the issue comes back despite that and you can't see any wiring harness damage, well, you can try and read out the codes from the OBD-II port to see if that gives the problem away, or your car will need a mechanic.

cbo2188 · 03-04-2021, 11:27 AM

Thank you both for your help. It has stock wheels. No mods to the car.
I'll try removing the neg cable first.
Appreciate your time.

Minerbros66 · 03-04-2021, 01:54 PM

I had the same thing happen with my 2017 V6, dealer had to replace the whole head unit to fix it. It would happen to me intermittently so they could never replicate it. I took a video on my phone when it happened again and showed the dealer so they could see it and they just swapped it out for a new unit and I didn't have any more issues.

Pupilbone · 03-06-2021, 10:38 AM

cbo2188: Curious here.

Did the negative terminal disconnect resolve your issue?

cbo2188 · 03-07-2021, 12:23 PM

I parked the car until today. Started it and had no issues.
I removed the neg battery terminal anyway for about a half hour. Also pushed all the fuses under the hood and trunk so see if any might have been loose but all seemed tight.
After reconnecting the battery cable, I took it for a 20 min drive and still no issues yet.

Kaigs1002 · 12-30-2022, 02:02 PM

Im having the same issue as you now, Ive disconnected the batter and out a new one in already, Checked fuses etc. Someone please provide some light on the matter. It would be much appreciated.

Here are some images below of the codes im getting

https://ibb.co/LnDkwks
https://ibb.co/1XYCjkK
https://ibb.co/7C9ptBs

03-03-2021, 07:26 PM	#1
cbo2188 Drives: 2017 Chevy Camaro 2.0T 6MT Join Date: Jan 2018 Location: South Jersey Posts: 5	Dash stopped working. All warning lights came on. Hi all I have a 2017 Camaro 2.0L turbo manual transmission. It has about 20,000 miles. While I was driving, my dash and radio screen became super bright, gauges stopped working, started chiming all the warning lights, airbag light, turn signals stopped working. Then it stopped and came back shortly after. I wasn't able to get a video while driving, but took some photos when I finally got home. The engine was running in these pics. I searched the forum and some had an issue with the rear wiring harness?? Just wanted to get some thoughts on this before a possible high repair bill. Oh and my warranty ended back in November 2020. Thank you for your help. Attached Images Last edited by cbo2188; 03-03-2021 at 07:33 PM. Reason: Photos are sideways

03-03-2021, 08:58 PM	#3
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,575 View My Garage	Do you have wider wheels and tires in the rear? I assume the harness problem you refer to is the damage caused by rubbing with wide tires, but that should not happen with the stock setup. If not, then remove the negative terminal as koolkat68 suggested, wait 10 minutes or so to force a hard reset of the system and hope it's just a fluke. If the issue comes back despite that and you can't see any wiring harness damage, well, you can try and read out the codes from the OBD-II port to see if that gives the problem away, or your car will need a mechanic. __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

03-04-2021, 01:54 PM	#5
Minerbros66 Drives: 2020 Camaro 2SS, 2018 Shelby Raptor Join Date: Apr 2020 Location: Michigan Posts: 103	I had the same thing happen with my 2017 V6, dealer had to replace the whole head unit to fix it. It would happen to me intermittently so they could never replicate it. I took a video on my phone when it happened again and showed the dealer so they could see it and they just swapped it out for a new unit and I didn't have any more issues. __________________ 2020 Camaro 2SS A10 2018 Shelby Baja Raptor #87

03-06-2021, 10:38 AM	#6
Pupilbone Drives: 2019 Crush ZL1 M6 Join Date: Jul 2018 Location: Grimsby, Ontario Posts: 708 View My Garage	cbo2188: Curious here. Did the negative terminal disconnect resolve your issue? __________________ #SaveTheManuals

03-03-2021, 07:46 PM	#2
koolkat68 Drives: 2022 Vivid Orange Metallic LT1 Join Date: Mar 2020 Location: MI Lansing Area Posts: 72	May be time to remove the negative battery cable for a while to reset the communications between the computers.

03-04-2021, 11:27 AM	#4
cbo2188 Drives: 2017 Chevy Camaro 2.0T 6MT Join Date: Jan 2018 Location: South Jersey Posts: 5	Thank you both for your help. It has stock wheels. No mods to the car. I'll try removing the neg cable first. Appreciate your time.

03-07-2021, 12:23 PM	#7
cbo2188 Drives: 2017 Chevy Camaro 2.0T 6MT Join Date: Jan 2018 Location: South Jersey Posts: 5	I parked the car until today. Started it and had no issues. I removed the neg battery terminal anyway for about a half hour. Also pushed all the fuses under the hood and trunk so see if any might have been loose but all seemed tight. After reconnecting the battery cable, I took it for a 20 min drive and still no issues yet.

12-30-2022, 02:02 PM	#8
Kaigs1002 Drives: Chevrolet Camaro 2ss Join Date: Oct 2022 Location: Florida Posts: 9	Im having the same issue as you now, Ive disconnected the batter and out a new one in already, Checked fuses etc. Someone please provide some light on the matter. It would be much appreciated. Here are some images below of the codes im getting https://ibb.co/LnDkwks https://ibb.co/1XYCjkK https://ibb.co/7C9ptBs

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