* To activate the rear wiper: There should be a small lever or button on the stalk itself. This lever is usually positioned so that when the stalk is pulled towards you (away from the steering wheel), it activates the rear wiper in either intermittent or continuous mode depending on its position. Try different positions of the stalk pull to find the intermittent vs. continuous settings.
* Intermittent vs. Continuous: Moving the stalk slightly toward you and releasing it usually activates the intermittent wiper. Holding the stalk pulled toward you will usually activate continuous wiping. The exact behavior may differ slightly based on your specific vehicle's options (some may have adjustable intermittent speed settings with a different lever action).
If you cannot find a control on the wiper stalk, consult your owner's manual. It's also possible there may be a fuse issue if the rear wiper isn't working at all, despite trying the controls.
