2008 Lexus GX 470 Owners Manual - Page 189

2-3. Operating the lights and windshield wipers n The windshield wiper and washer can be operated when The engine switch is in the "ON" position. 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 2 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 When driving wiper sweep occurs) With "LO" selected, wiper operation will be switched from low speed to intermittent wiper operation only when the vehicle is stationary. n Rain drop sensor (vehicles equipped with the rain-sensing windshield wipers) The sensor judges the amount of raindrops. n If no windshield washer fluid sprays Check that the washer nozzles are not blocked if there is washer fluid in the windshield washer fluid reservoir. n In extremely hot or cold weather The system will turn off if the windshield gets extremely hot (more than 194°F [90°C]) or cold (less than 14°F [-10°C]). 139