Jeep 2010 Patriot - Owner Manual - Manual (Page 151)

WARNING!
Sudden loss of visibility through the windshield
could lead to an accident. You might not see other
vehicles or other obstacles. To avoid sudden icing of
the windshield during freezing weather, warm the
windshield with the defroster before and during
windshield washer use.
Mist Feature
Push down on the control lever to activate a single wipe
to clear the windshield of road mist or spray from a
passing vehicle. As long as the lever is held down, the
wipers will continue to operate.
Mist Control
150 UNDERSTANDING THE FEATURES OF YOUR VEHICLE