2007 Lexus GS 450h User Guide - Page 142

2-3. Operating the lights and windshield wipers Windshield wipers and washer n Rain-sensing windshield wipers With "AUTO" selected, the wipers will operate automatically when the sensor detects falling rain. The system automatically adjusts wiper timing in accordance with rain volume and vehicle speed. Sensor sensitivity (low) Sensor sensitivity (high) Rain-sensing wiper operation Low speed wiper operation High speed wiper operation Temporary operation Wash/wipe operation n The windshield wiper and washer can be operated when The power switch is in "IG-ON" mode. n Dripping prevention wiper sweep After washing and wiping operation several times, the wipers operate one more time after a short delay to prevent dripping. However, the last sweep will not happen if the vehicle is traveling above 106 mph (170 km/h). n Effects of vehicle speed on wiper operation With the settings other than "AUTO" also, the time until drip prevention wiper sweep occurs is changed depending on vehicle speed. With "LO" selected, wiper operation will be switched from low speed to intermittent wiper operation only when the vehicle is stationary. 124