How can I get the dash warning light for windshield fluid to go off, having filled the tank?

The light will go out when the washer fluid tank is filled, if it is full then the level sensor is defective and you need to install a new one, it is located in the washer fluid tank.

The Grand Cherokee has a warning display. The low washer fluid warning is a blinking windshield on the outline of the jeep in the center console display. It is confusing and could be easily falsely interpreted as a hood ajar warning. Fill the window washer and srr if warning goes away.

It is simply a warning light that the windshield washer fluid reservoir is low.

could mean anything from your windshield washer fluid is low to a bulb is out on the car..im pretty sure its just a warning light, u have to start up the power in the car (ACC) but not actually turning the engine..then use the button on the end of the blinker wand to access the "check control" this should tell you whats up

Pull up the error codes and freeze frame data to interpret the check engine light illumination.

Windshield Washer Pump Removal & Installation To Remove:

1. Remove the air cleaner assembly.
2. Remove the bolts.
   
   
3. Position the pump and reservoir aside.
4. Disconnect the electrical connectors.
5. Disconnect the washer hose.
6. Remove the pump and reservoir.
7. Remove the washer pump.

WARNING
Windshield washer solution contains methanol which is poisonous. Observe all cautions and warnings indicated on label of washer solution container.
NOTE: Windshield washer fluid should be collected in a container after the windshield washer hose is disconnected.
To Install:
WARNING
Windshield washer solution contains methanol which is poisonous. Observe all cautions and warnings indicated on label of washer solution container.

1. Install washer pump in reservoir.
2. Install washer pump reservoir assembly.
3. Connect washer hose.
4. Connect washer electrical connector.
5. Install air cleaner assembly.

---
The windshield wiper fluid pump is located in the tank which is not in the heater motor or defroster area in the dash.

The defroster/heat control door is located in the dash board area:

Air Door Actuators, Cables or Motors Removal & Installation Air Inlet Door Vacuum Control Motor To Remove:

1. Remove the instrument panel lower insulator cover.
2. Disconnect the vacuum connector.
3. Remove the control arm clip and the spring.
4. Remove the nuts and the air inlet door vacuum control motor.

Air inlet door vacuum motor mounting screws

To Install:

1. Install the vacuum motor on the mounting bracket.
2. Connect the control arm and spring.
3. Connect the vacuum hose to the vacuum motor.
4. Install the lower instrument panel lower cover.

Floor Defrost Door Vacuum Control Motor To Remove:

1. Disconnect the negative battery cable.
2. Remove the left lower dash insulator panel and disconnect the lamp.
3. Remove the two pin-type retainers and remove the fill panel.
4. Remove the DLC mounting screws.
5. Detach the vacuum line.
6. Remove the lighting module.
7. Remove the screws and the bracket.
8. Remove the floor/defrost door vacuum control motor.

Floor/Defrost vacuum motor mounting screws

To Install:

1. Connect the vacuum lines and install the floor/defrost vacuum motor.
2. Install the bracket and lighting control module.
3. Install the DLC bracket and mounting screws.
4. Install the fill panel.
5. Install the left lower dash insulator panel.
6. Connect the negative battery cable.

Panel Door Vacuum Control Motor To Remove:

1. Remove the instrument panel.
2. Reach through the door opening and remove the pin.
3. Disconnect the panel door vacuum control motor vacuum line.
4. Remove the screws and remove the panel door vacuum control motor.

To Install:

1. Install the panel door vacuum motor.
2. Connect the vacuum line to the panel door motor.
3. Reach through the opening and install the pin to the linkage.
4. Install the instrument panel.

this is the indicator for the windshield washer fluid tank, It needs to be filled. If it cant keep fluid it may have a crack in the tank or the pump

There is a little float mechanism inside the washer tank that is probably stuck or binding. If the wiper/washers work, you have power to the fluid tank.
Pull of the top and see if you can locate it. You might need a piece of flexible, fine wire to GENTLY help it along...

Here's a link to get an owner's manual.



http://search.stores.ebay.com/Car-and-Truck-Owners-Manuals_1991-Chevy-Sprint_W0QQfciZ10QQfclZ3QQfsnZCarQ20andQ20TruckQ20OwnersQ20ManualsQQfsooZ2QQfsopZ2QQsaselZ1040964QQsofpZ0

replace fluid tank. might find it cheap in a junkyard