2009 Subaru Outback Owner's Manual - Page 178

Instruments and controls 3-55 Vehicle with automatic climate control system The rear window defogger operates only when the ignition switch is in the "ON" position. The rear window defogger button is located on the climate control panel. To turn on the defogger, push the button. To turn it off, push the button again. The indicator light located on the button lights up while the rear window defogger is operating. The defogger will automatically shut off after approximately 15 minutes. If the window clears before that time, push the button to turn it off. It also turns off when the ignition switch is turned to the "Acc" or "LOCK" position. If defrosting or defogging is not complete, you have to push the button to turn it on again. For the vehicle with the automatic climate control system, if you wish, you can set the rear window defogger for continuous operation as follows. . Vehicle with genuine SUBARU navigation system: The rear window defogger setting can be changed for continuous operation by means of the monitor. For details, please refer to the Owner's Manual supplement for the monitor system. The setting can also be changed by a SUBARU dealer. Please contact the nearest SUBARU dealer for details. . Vehicle without genuine SUBARU navigation system: The setting can also be changed by a SUBARU dealer. Please contact the nearest SUBARU dealer for details. Once the rear window defogger has been set for continuous operation, by pushing the button, the rear window defogger repeatedly runs according to the following cycle: operates for 15 minutes, stops for 2 minutes, operates for 15 minutes, stops for 2 minutes. If the battery voltage drops below the permissible level, continuous operation is canceled and the defogger stops operating. CAUTION . Do not use sharp instruments or window cleaner containing abrasives to clean the inner surface of the rear window. They may damage the conductors printed on the window. . To prevent the battery from being discharged, do not operate the defogger continuously for any longer than necessary. NOTE If your vehicle is equipped with the outside mirror defogger, the outside mirror defogger operates while the rear window defogger is operating.