Dodge 2008 Durango - Manual (Page 266)

REAR WINDOW FEATURES
Rear Window Wiper/Washer
A rotating switch located on the climate control
panel turns the rear wiper On or Off. Pressing the
rotating switch inward activates the rear window
washer. Rotating the switch will enable one of five
intermittent delay times for the rear wiper. The delay
times range from 20 to 1 second.
266 INSTRUMENT PANEL AND CONTROLS