1994 Pontiac Bonneville Owner's Manual - Page 118

(Rear Window Defogger): Press tc warm the defogger grid on the rear ECON: Use in cold or cool weather. This window. On some models, the outside rearview mirrors are also warmed. The saves fuel because the air conditioner rear window defogger will turn off compressor doesn't run. But this setting automatically after about 10 minutes of doesn't remove humidity from the air. use. If you turn it on again, the defogger (Defrost): Press this to remove fog will operate for about five minutes only. or ice from the windshield. It will start at You can also turn the defogger off by the mediumhigh fan speed, but you can turning off the ignition or pressing the select another speed if you want. It'sa switch again. good idea to remove any ice or snow from Do not attach a temporary vehicle licensc the hood and from the air inlet between across the defogger grid on the rear the hood and windshield. window. not be able to if it's very warm or cold outside. Extended Idling With Electronic Climate Control When the engine idles for a long time, the outside temperature sensor may cause the system to blow air that is too cool. This should stop once the vehicle is moving again. Extended idling is not recommended, See "Engine Exhaust'' in the Index. 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. 11/...