Washer fluid light help.

I ran my truck out of washer fluid, so my light came on. I put some more in there and not it wont turn back off. It's rather annoying and yes I put enough in it. Thanks guys

 

check the level sensor maybe its stuck. you should be able to unplug the sensor and the tank hook a multimeter to the sensor and as the float goes up and down your ohms should go up or down you must understand sensor speak a different language and the language is voltage so the resistance caused by the sensor will go up or down dependent on the fluid level.