2018 Yukon XL Denali Infotaiment screen black

[jennrichj]

My Yukon's infotainment screen never turned back on one morning. I found some talk about this issue but none of the quick fixes worked.

Symptoms are: No audio whatsoever! No screen display at all, not during startup, normal radio or anything, usb ports no longer have power, bluetooth does not connect and OnStar doesnt work. Even the HUD says "audio muted". What's different from other posts about blank screens is that my backup camera still works normally and I hear absolutely nothing.
I have checked all fuses I can find including the 20amp in the passenger dash panel for the radio. I have disconnected the battery for an hour and even over night for giggles. I have also tried the blue (micro usb) plug on the HDMI module behind the glove box.

I understand there are at least 3 different items that could be bad/faulty; the radio module behind the screen, the HMDI module behind the glove box or the amplifier under the center console.

Any help to even narrow it down is greatly appreciated!

 

[LaCaze17]

My Yukon's infotainment screen never turned back on one morning. I found some talk about this issue but none of the quick fixes worked.

Symptoms are: No audio whatsoever! No screen display at all, not during startup, normal radio or anything, usb ports no longer have power, bluetooth does not connect and OnStar doesnt work. Even the HUD says "audio muted". What's different from other posts about blank screens is that my backup camera still works normally and I hear absolutely nothing.
I have checked all fuses I can find including the 20amp in the passenger dash panel for the radio. I have disconnected the battery for an hour and even over night for giggles. I have also tried the blue (micro usb) plug on the HDMI module behind the glove box.

I understand there are at least 3 different items that could be bad/faulty; the radio module behind the screen, the HMDI module behind the glove box or the amplifier under the center console.

Any help to even narrow it down is greatly appreciated!

Did you resolve the issue? I am having the same problem and can't seem to find a fix. Also 2018 Yukon Denali.

 

[Fless]

Did you resolve the issue? I am having the same problem and can't seem to find a fix. Also 2018 Yukon Denali.

That member hasn't been on here since March, FWIW.

 

[GMCChevy]

Mine went black earlier this year but was also draining the battery. Same thing nothing worked except the backup camera. It was HMI module that was bad.

 

[LaCaze17]

Mine went black earlier this year but was also draining the battery. Same thing nothing worked except the backup camera. It was HMI module that was bad.

Did you replace it yourself or dealership? upgrade, exact replacement? Looking to replace it and trying to figure out the best route.

 

[GMCChevy]

Did you replace it yourself or dealership? upgrade, exact replacement? Looking to replace it and trying to figure out the best route.

Dealer. I wasn't sure what the problem was and it was about the same price as what the new/refurb units go for online so I wouldn't have saved anything. I haven't looked if maps were updated or not.