Jeep 2012 Liberty - Manual (Page 170)

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.
Rain Sensing Wipers — If Equipped
This feature senses moisture on the windshield and
automatically activates the wipers for the driver. This
feature is especially useful for road splash or overspray
from the windshield washers of the vehicle ahead. Rotate
the end of the windshield wiper/washer control lever to
one of the five intermittent wiper settings to activate this
feature.
The sensitivity of the system is adjustable from the
windshield wiper/washer control lever. Wiper delay
position 1 is the least sensitive and wiper delay position
5 is the most sensitive. Choose position 3 for normal rain
conditions. Choose position 2 or 1 if you desire less wiper
sensitivity. Choose position 4 or 5 if you desire more
sensitivity. Place the lever in the off position when not
using the system.
Mist Control
168 UNDERSTANDING THE FEATURES OF YOUR VEHICLE