Heater Control Panel Lights on a GU Ti Series 1

Hi all. Anyone here have a Series 1 GU Patrol Ti with the Front and Rear Automatic Airconditioning? The control panel at the bottom is hard to see at night, but someone told me that the buttons are supposed to light up as well. The LCD display is illuminated and the green lights on a couple of the buttons dim when you turn on the parking lights, but the other buttons look as if the writing is supposed to light up. I have scoured the manual and found the wire that takes the panel light power to it, and it have power when it is supposed to, but not sure if the buttons should light up. It's driving me crazy as its hard to see the controls at night.