Rear HVAC controls

[George B]

Mine is dark until I press a button and then it wakes up.

 

[Alexquade]

I have checked the fuses for both RSE and rear hvac. I have pressed every button on the rear controls and nothing happens. I have pressed the “AUX” on the front a/c controls and pressed again and still nothing. The front has manual controls, and the rear has auto. I thought it was weird but I contacted gm and got the build sheet and it’s correct.

 

[Alexquade]

Is there a lockout button for the rear controls up front? On the 2015+ body style, pressing the lockout button turns off the rear HVAC display since the rear passengers can't change any settings.

Only thing I’m aware of is turning off the rear ac controls. But not locking anything. She only has sound through the front speakers, and her a/c drips in the rear. She just doesn’t have any fan speed.