Low engine coolant light on???

[supramacist]

The low coolant or "birdcage" light is coming on because you have an air pocket in your coolant system. Are you hearing a water fall??

None the less..., get a pair of ramps or park on a steep incline.
Pop the hood and let the engine cool a bit. Take off the radiator cap.
Start the car. Top it off. With distilled water and or coolant depending upon your mix.

Check it every few minutes. keep topping it off. If you stand there and watch you will probably see small bubbles every little bit.

Just keep topping it off, keep the nose elevated. This could take 15 minutes or two hours depends on you and your coolant system.

This method is referred to as " burping " .

Hope this helps.