Possible Causes
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
WASHER FLUID LEVEL SWITCH ALWAYS CLOSED
LOW WASHER FLUID SENSE CIRCUIT OPEN
LOW WASHER FLUID SENSE CIRCUIT SHORT TO GROUND
WASHER FLUID LEVEL SWITCH ALWAYS OPEN
WASHER FLUID LEVEL SWITCH GROUND CIRCUIT OPEN
INSTRUMENT CLUSTER