Newbie to QX's. Is there a trick to getting the rear heater controls to operate? Front controls for the rear HVAC work fine but the controls for the rear passengers aren't. I press the button to unlock the rear controls and a message says they're unlocked but no difference. The rear controls do not light up the yellow bar light when you press any of the three air directional controls. The fan an temp dial do light up when night interior lights are on but that's it. Thanks for any help offered. Enjoying the vehicle very much. Had to 4 wheel through a blizzard for 3 hours last night and it was an incredible vehicle.

Welcome to CA JohnOllen!

I have an '06 Armada, so I have no input, but hopefully one of the '08/'09 QX owners will post something soon. Good luck!

Thanks.
I'd think it was a fuse if the rear control dials didn't light up at night but since they're getting some power I'm thinking it must be something else.

Figured it out. Turns out that not only do you have to press REAR-CTRL button on dash to unlock rear controls, you then have to press the Temp Dial which activates the rear HVAC controls and deactivates front controls for the rear HVAC.

You should only have to press the Temp Dial (on the overhead console upfront) for the rear to have control over the A/C and heat. The Rear-Ctrl button on the dash is for the speakers...