Mylink Screen Dead

EstebanVerde · 02-08-2017, 10:58 AM

Started up today and when I went to backup I realized my Mylink screen was black (still had lighting like it was on but just completely blank). I've turned the car on and off played around in the fuse box to no avail. Music plays and can be changed with the physical buttons, but other than that no access to the mylink. Bringing it to the dealer tomorrow. I really love my Camaro, but the continuous issues (diff noise, light throttle whistle noise, rattle from the oil line recall, and other various rattles) from a brand new 40k+ car are starting to wear on me.

mjmenke · 02-09-2017, 11:18 AM

Kind of late now but you need to turn the car off for at least 4 minutes to let all of the different computers fully power off. Then turn it on. If you don't the processor that is causing the issues might not reboot.

This may or may not help.

Rock-It Man · 02-09-2017, 12:35 PM

If the 4 minute wait (or longer) doesn't work, OnStar may be able to reboot it for you.

That worked for me on a different GM car with MyLink.

BTW, the wait has to include taking the key out and opening and closing the driver's door.

TJay74 · 02-09-2017, 12:53 PM

Sounds like the HMI module is hung up, exact same thing that happened on my 2016 truck.

EstebanVerde · 02-11-2017, 09:00 AM

Thanks for all the replies. None of the restarts seemed to help. I took it to the dealer and they said they ordered a part. Sounds like it was probably the HMI. Will let you guys know when I get the car back.

EstebanVerde · 02-15-2017, 09:50 PM

Got my car back tonight. Nothing makes you appreciate your camaro like driving a barebones Malibu for a week. Apparently the dealer replaced the controller. I was happy that my Bluetooth connection and presets were all still there when I got the car back.

uberjeff · 02-18-2017, 02:16 AM

I had this happen to me once. I disconnected the battery for a few minutes. After a restart the problem was resolved and hasn't returned.

pdrumans · 02-21-2017, 04:31 PM

Quote:

Originally Posted by uberjeff

I had this happen to me once. I disconnected the battery for a few minutes. After a restart the problem was resolved and hasn't returned.

Same for me, I had it happen one time 6 months ago and I disconnected the battery after the screen not coming back on (music still played) and it reset and never happened again.

Silverado57 · 07-06-2019, 02:24 PM

Mine just went black an hour ago. I tried a few restarts, pulled the F16 fuse and used the Onstar button to turn the radio audio back on when that went quiet. Everything else seems OK.
We're on our way to Camarofest so we don't have any tools to disconnect the battery.
Of course, all the dealers are closed now, tomorrow is Sunday, so I'm hoping it'll fix itself.

TJay74 · 07-08-2019, 07:53 AM

Quote:

Originally Posted by Silverado57

Mine just went black an hour ago. I tried a few restarts, pulled the F16 fuse and used the Onstar button to turn the radio audio back on when that went quiet. Everything else seems OK.
We're on our way to Camarofest so we don't have any tools to disconnect the battery.
Of course, all the dealers are closed now, tomorrow is Sunday, so I'm hoping it'll fix itself.

Just need a 10mm socket to unhook the negative terminal in the trunk.

Silverado57 · 07-13-2019, 10:03 AM

So far the dealer replaced the radio as part of the diagnosis.
I'm no expert but I would have been shocked if it was only the radio that was bad.
They called me yesterday afternoon to tell me they had to order the HMI module. It should be here on Monday.
Of course this weekend is gorgeous and all the cool kids are driving around in their convertibles.

PnCRedJwl2SS · 07-17-2019, 01:05 PM

maybe it's something really simple. I had something like this happen once. I had been fiddling with the brightness knob for the display brightness setting (to the left of the steering column). It's possible to turn it down so far that the screens will be blank.

Hope this helps!

cellsafemode · 12-16-2019, 10:37 PM

Reviving this.

My screen went blank a month ago. USB was super glitchy, connecting and disconnecting repeatedly. But bluetooth kind of worked ...touch screen worked.

Got a new hmi unit from gen5diy finally ...put that in, the usb appears to not be glitchy anymore...but the screen still wont come on.

Leaving the battery off again for the entire night but I did that with the original hmi and it didn't help.

I dont know what else could be causing this. I find it hard to believe that the harness would just randomly go bad ..it's not like the parts move and I dont see any evidence of wires melting. Would the display itself be bad?

Does anyone have any info on what actually fixes these problems ....or is it always the dealer has the car for a month and replaces xyz and only mentions all the parts they ordered to fix it but not exactly which part was bad?

cellsafemode · 12-17-2019, 09:47 AM

had battery unplugged all night, still no change.

So as far as i can see in the circuit diagram, the video signal goes from the hmi unit to the display unit I guess i'll beep the cable out and see if it spontaneously failed.

Only other option I can see is the display unit. Unless something else can force the hmi unit to not output video but still do everything else.

Does the display unit actually get vin coded like i think it does? It's infuriating that this pos only comes altogether with a custom plastic piece and extraneous hardware. Costs 400 before programming (if programming is required). Already spent about 1k on the replacement hmi. So 1400 to fix a stock av system that does nothing useful for me but act as a dumb terminal for android auto and the backup camera. I'm starting to be glad the market is punishing chevy for their choices by not buying it.

02-08-2017, 10:58 AM	#1
EstebanVerde Drives: 16 2SS Camaro Join Date: May 2015 Location: Florida Posts: 112	Mylink Screen Dead Started up today and when I went to backup I realized my Mylink screen was black (still had lighting like it was on but just completely blank). I've turned the car on and off played around in the fuse box to no avail. Music plays and can be changed with the physical buttons, but other than that no access to the mylink. Bringing it to the dealer tomorrow. I really love my Camaro, but the continuous issues (diff noise, light throttle whistle noise, rattle from the oil line recall, and other various rattles) from a brand new 40k+ car are starting to wear on me.

02-09-2017, 11:18 AM	#2
mjmenke Drives: 2017 Camaro SS Join Date: Jul 2016 Location: Altoona Iowa Posts: 90	Kind of late now but you need to turn the car off for at least 4 minutes to let all of the different computers fully power off. Then turn it on. If you don't the processor that is causing the issues might not reboot. This may or may not help. __________________ 2017 2SS Black NPP A8 - 422 HP 427 TQ

02-18-2017, 02:16 AM	#7
uberjeff Drives: 2016 Camaro 2SS Join Date: Mar 2016 Location: AZ/CA depending on the week Posts: 40 View My Garage	I had this happen to me once. I disconnected the battery for a few minutes. After a restart the problem was resolved and hasn't returned. __________________ Hyper Blue 2SS - A8, NPP, 56W wheels

07-06-2019, 02:24 PM	#9
Silverado57 Drives: 2017 Camaro SS Join Date: Nov 2018 Location: East Tennessee Posts: 522	Mine just went black an hour ago. I tried a few restarts, pulled the F16 fuse and used the Onstar button to turn the radio audio back on when that went quiet. Everything else seems OK. We're on our way to Camarofest so we don't have any tools to disconnect the battery. Of course, all the dealers are closed now, tomorrow is Sunday, so I'm hoping it'll fix itself. __________________ Kevin Luceo Non Uro

07-13-2019, 10:03 AM	#11
Silverado57 Drives: 2017 Camaro SS Join Date: Nov 2018 Location: East Tennessee Posts: 522	So far the dealer replaced the radio as part of the diagnosis. I'm no expert but I would have been shocked if it was only the radio that was bad. They called me yesterday afternoon to tell me they had to order the HMI module. It should be here on Monday. Of course this weekend is gorgeous and all the cool kids are driving around in their convertibles. __________________ Kevin Luceo Non Uro

02-09-2017, 12:35 PM	#3
Rock-It Man 376 cubic inches of fun Drives: 2023 Camaro ZL1 A10 Join Date: Jul 2010 Location: MA Posts: 4,030 View My Garage	If the 4 minute wait (or longer) doesn't work, OnStar may be able to reboot it for you. That worked for me on a different GM car with MyLink. BTW, the wait has to include taking the key out and opening and closing the driver's door.

02-09-2017, 12:53 PM	#4
TJay74 Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016 Location: Norman, OK Posts: 2,424	Sounds like the HMI module is hung up, exact same thing that happened on my 2016 truck.

02-11-2017, 09:00 AM	#5
EstebanVerde Drives: 16 2SS Camaro Join Date: May 2015 Location: Florida Posts: 112	Thanks for all the replies. None of the restarts seemed to help. I took it to the dealer and they said they ordered a part. Sounds like it was probably the HMI. Will let you guys know when I get the car back.

02-15-2017, 09:50 PM	#6
EstebanVerde Drives: 16 2SS Camaro Join Date: May 2015 Location: Florida Posts: 112	Got my car back tonight. Nothing makes you appreciate your camaro like driving a barebones Malibu for a week. Apparently the dealer replaced the controller. I was happy that my Bluetooth connection and presets were all still there when I got the car back.

07-17-2019, 01:05 PM	#12
PnCRedJwl2SS Howdy! Pete here... Drives: 2017 50th Anniv 2SS, A8, NPP, MRC Join Date: Jul 2009 Location: Schertz, TX Posts: 1,379 View My Garage	maybe it's something really simple. I had something like this happen once. I had been fiddling with the brightness knob for the display brightness setting (to the left of the steering column). It's possible to turn it down so far that the screens will be blank. Hope this helps! __________________ PnCRedJwl2SS 2017 50th Anniversary Edition, A8, NPP, MRC, w/Sunroof and Glow-tie! ___________________________________________ ___________________________________________ Ordered from GM Delivered to dealership and home 9-16-16 This car is a beast!

12-16-2019, 10:37 PM	#13
cellsafemode Drives: 2016 Camaro 1LT Join Date: Jan 2016 Location: California Posts: 3,491	Reviving this. My screen went blank a month ago. USB was super glitchy, connecting and disconnecting repeatedly. But bluetooth kind of worked ...touch screen worked. Got a new hmi unit from gen5diy finally ...put that in, the usb appears to not be glitchy anymore...but the screen still wont come on. Leaving the battery off again for the entire night but I did that with the original hmi and it didn't help. I dont know what else could be causing this. I find it hard to believe that the harness would just randomly go bad ..it's not like the parts move and I dont see any evidence of wires melting. Would the display itself be bad? Does anyone have any info on what actually fixes these problems ....or is it always the dealer has the car for a month and replaces xyz and only mentions all the parts they ordered to fix it but not exactly which part was bad?

12-17-2019, 09:47 AM	#14
cellsafemode Drives: 2016 Camaro 1LT Join Date: Jan 2016 Location: California Posts: 3,491	had battery unplugged all night, still no change. So as far as i can see in the circuit diagram, the video signal goes from the hmi unit to the display unit I guess i'll beep the cable out and see if it spontaneously failed. Only other option I can see is the display unit. Unless something else can force the hmi unit to not output video but still do everything else. Does the display unit actually get vin coded like i think it does? It's infuriating that this pos only comes altogether with a custom plastic piece and extraneous hardware. Costs 400 before programming (if programming is required). Already spent about 1k on the replacement hmi. So 1400 to fix a stock av system that does nothing useful for me but act as a dumb terminal for android auto and the backup camera. I'm starting to be glad the market is punishing chevy for their choices by not buying it.

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