2008 Toyota Sienna Owners Manual - Page 34

SIENNA (QRG_U) J Operation Requirements Cruising from about 45 km/h (28 mph) to about 135 km/h (85 mph) y16121q The wipers are not operating at all or operating intermittently. The selector lever is in the "D" or "4" position. Even if these requirements are met, the system may not operate properly under certain conditions such as bad weather. See "Owner's Manual" for details. See Owner's Manual for Complete Information. −2− 2008 SIENNA Quick Reference Guide from Aug. '07 Prod. (OM45449U)