2004 Lexus ES 330 Owners Manual - Page 63

SWITCHES Raindrop detection type Automatic operation The wiper speed is determined by the amount of raindrops and sunlight detected by the automatic wiper control sensor. Twist the automatic control adjuster in the "-" direction to lower the sensitivity, and the "+" direction to boost the sensitivity. " 1 Automatic control adjuster 2 Washer on To turn the wipers on, move the lever down until you reach the desired speed setting. The ignition switch must be in the "ON" position. There are 3 settings: "AUTO" position: Automatic operation "LO" position: Low speed operation "HI" position: High speed operation The sensor is on the inside of the windshield as shown above. Even if the wiper lever is in the "AUTO" position, the system will switch to intermittent operations in the following conditions: D When the windshield gets extremely cold (at less than -10_C or 14_F) D When the system malfunctions However, when the windshield gets extremely hot (at more than 90_C or 194_F), the wipers do not operate even if the wiper lever is in the "AUTO" position. 44