Possibly freezing. Make sure you are using Windshield Washer Fluid and not water.
There is no rear fluid reservoir. The fluid is pumped from the reservoir under the hood that feeds the windshield washers.
Both washers use the front reservoir
Under the hood in the container that says something like Windshield Washer Fluid.
We have a 2002 S-80. The headlight wipers work automatically when you use your windshield washer fluid to wash your windshield.
It gets fluid from the same reservoir as the front washers.
The windshield washer pump on a 1999 Ford Explorer moves washing fluid from the reservoir and sprays it onto the windshield. It is capable of spraying in a constant stream or in pulses.
Both washers use the same reservoir which is under the hood.Both washers use the same reservoir which is under the hood.
Follow the hoses from the washer outlet spray heads backward to the washer reservoir.
Most likely the little pump in the washer fluid tank is bad. These are fairly cheap and easy to replace.
You don't. They are always on. Don't expect a hot stream of washer fluid blasting the ice off the windshield, they are heated washer NOZZLES, only meant to keep them from icing over. They may impart a bit of heat to the fluid but nothing significant.
Windshield fluid is not customized for specific makes of cars; any windshield fluid will work in any car that uses windshield fluid. If you Toyota Corolla isn't able to use your windshield fluid, the problem is not the fluid, it is in the mechanism of the car.