2008 Lexus IS 250 Owners Manual - Page 148

2-3. Operating the lights and windshield wipers n Rain-sensing windshield wipers (if equipped) 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 Wipers operate automatically. (After operating several times, the wipers operate one more time after a short delay to prevent dripping.) n The windshield wiper and washer can be operated when The "ENGINE START STOP" switch is in IGNITION ON mode. n Effects of vehicle speed on wiper operation Vehicle speed affects the following even when the wipers are not in "AUTO" mode. l Intermittent wiper interval ("INT" mode) l Wiper operation when the washer is being used (delay until drip prevention wiper sweep occurs) With "LO" selected, wiper operation will be switched from low speed to intermittent wiper operation only when the vehicle is stationary. (However, the mode cannot be switched when the adjustment dial for the intermittent wiper interval is set to the lowest setting.) 148