2002 Toyota Prius Owners Manual - Page 95

Rear window defogger To squirt washer fluid, pull the lever toward you and release it. If the windshield wipers are off, they will operate a couple of times after the washer squirts. For instructions on adding washer fluid, see "Adding washer fluid" on page 225 in Section 8-3. In freezing weather, warm the windshield with the defroster before using the washer. This will help prevent the washer fluid from freezing on your windshield, which can block your vision. Make sure you turn the defogger off when the window is clear. Leaving the defogger on for a long time could cause the auxiliary battery to discharge. The defogger is not designed for drying rain water or for melting snow. 23p009 NOTICE When cleaning the inside of the rear window, be careful not to scratch or damage the heater wires or connectors. NOTICE Do not operate the wipers if the windshield is dry. It may scratch the glass. To defog or defrost the rear window, push the switch. The key must be in the "ON" position. The thin heater wires on the inside of the rear window will quickly clear the surface. An indicator light will illuminate to indicate the defogger is operating. Push the switch once again to turn the defogger off. The system will automatically shut off after the defogger has operated about 15 minutes. 86