1994 Pontiac Bonneville Owner's Manual - Page 115

Comfort Controls & Audio Systems Do not attach a temporary vehicle license across the defogger grid on the rear window. NOTICE: Don't use a razor blade or something else sharp on the inside of the rear window.If you do, you could cut or damage the warming grid, and the repairs wouldn't be covered by your warranty. Defogging Windows With Rear Window Defogger Standard Climate Control (OPTION) The rear window defogger uses a warming grid to remove fog from the rear To defog the side windows, move the A0 window. Press the @ button and release mode control to F f l and the fan control it. A light will glow in the switch while to "HIGH". Aim the side vents toward the the defogger is working, The defogger side windows. For increased air flow to will return to off automatically after about the side vents. close the center vents. 10 minutes of use. If you turn it on again, the defogger will operate for about five minutes only. You can also turn the defogger off by turning off the ignition or pressing the button again. (CONT.) .. 114