Why does washer sensor message come on

SOURCE: EVIC - PERFORM SERVICE MESSAGE

To reset the perform service message , is as follows , turn ignition switch to the ON position , depress and release MENU push button until SERVICE INTV . = is displayed , press and release STEP button to step through available options. the last selected distance option displayed becomes the service interval at which the PERFORM SERVICE message will be displayed . if a new distance interval is selected , RESET SERVICE DISTANCE ? with a yes or no option. when yes is selected the accumulated distance since the last previous PERFORM SERVICE message will be set to zero because the service interval has been changed . when NO is selected , the distance until the next PERFORM SERVICE message is reduced by the accumulated distance since the last previous message . EVIC exits programming mode and returns to its normal operation mode when the C/T button is depressed or when the end of the programmable feature menu list is reached , whichever comes first .

Thanks for asking .

SOURCE: What does perform service message mean?

This is a oil change reminder. Nothing fancy about, when you get your oil change go into the menu and click reset counter and it will go off. If there was something wrong with your car the check engine light would come on.

SOURCE: perform service jeep grand cherokee 2005

Actually the newer cherokees are a little more complicated, it's not a reminder for an oil change. It is for an emssions service that should be performed according to the dealer. Here is the rest procedure

Turn ignition to on position, but do not start.
Depress brake pedal fully twice.
depress excellerator very slowly twice
Turn ignition off & that will reset the perform service indicator.
I am mechanic & we are getting frustrated because the dealers do not want to release this info to anyone, they want your money! Can you believe if you did not get them to perform the service they charge you a 1 hour shop rate??