1999 Buick Park Avenue Owner's Manual - Page 97

yellowblue Moisture-Sensing Delay Windshield Wipers (If Equipped) The moisture-sensing system is activated by turning the wiper control band to one of the five sensitivity levels within the delay area. The delay position closest to OFF/MIST is the lowest sensitivity setting. This allows more water to collect on the windshield between wipes. You can increase the sensitivity of the system and the frequency of wipes by turning the wiper control band away from you to the other delay settings. A single wipe will occur each time you turn the wiper control band to a higher sensitivity level. An initial wipe occurs when you turn the ignition on as a reminder that the rain sense feature is active. The moisture-sensing wipers operate in a delay mode as well as a continuous low or high speed, depending on the amount of moisture on the windshield and the sensitivity setting. The MIST and wash cycles operate as normal and are not affected by the moisture-sensing function. The moisture sensor is mounted on the passenger's interior side of the windshield behind the rearview mirror and is used to automatically operate the wipers by monitoring the amount of moisture on the windshield. NOTICE: Turn the wiper band to OFF to avoid wiper damage when going through an automatic car wash. 2-39