Jeep 2012 Grand Cherokee SRT - Owner Manual - Manual (Page 188)

WARNING!
Sudden loss of visibility through the windshield
could lead to a collision. 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
Use the Mist feature when weather conditions make
occasional usage of the wipers necessary. Rotate the end
of the lever downward to the Mist position and release
for a single wiping cycle.
NOTE: The mist feature does not activate the washer
pump; therefore, no washer fluid will be sprayed on the
windshield. The wash function must be used in order to
spray the windshield with washer fluid.
Mist Control
186 UNDERSTANDING THE FEATURES OF YOUR VEHICLE