My low coolant light is flickering on and off. I flushed the system today. No other symptoms. no overheating or leaks. this is on a 1995 Buick Regal Custom V6.

run a can or two of coolant system cleaner through your system and flush

U DEFINITELY HAVE A LEAK. IF U GO TO A LOCAL AUTOZONE OR PARTS STORE U CAN RENT A COOLANT PRESSURE TESTER. IT WILL PUSH THE LEAK RIGHT TO THE HOLE

Take look down by the belt tensioner. There are two by-pass tubes that run from the tensioner to the engine. The by-pass elbows have rubber seals on them and after the coolant flush may have damaged or ruined the seals.
The only other option is the coolant is going into the engine oil or transmission oil. Check both oils and see if they look "milky"
Good luck.

it is probably just a burnt light on the dash for the a/c and the odometer, as for the low coolant light if the car jhas more than 100,000 miles on it you need to get the coolant flushed that is all the light is warning you about.

You probably have a slight leak from the coolant filler cap and you have lost coolant by evaporation over the four months. Check the seal on the cap and replace it or the cap.

Check all around the intake manifold gasket for evidence of antifreeze. Also check your oil for evidence of coolant. The Dexcool antifreeze used in GM engines can cause the intake gaskets to deteriorate causing coolant leakage. Very difficult to detect.

Make sure you are checking the coolant level in the radiator as well as in the overflow tank. The sensor is located in the radiator, so if the level in the overflow tank is good, it could still be low in the radiator.

If there are no leaks, a couple more things to check are a clogged radiator and a blown head gasket. Take the radiator cap off and start the engine. Let it warm up and look inside. Does the coolant flow in from the upper hose and go down the cooling tubes? Are there deposits inside? With the radiator full of coolant to the cap neck, are there any bubbles coming up the neck? Bubbles of combustion gas indicate a blown head gasket.
Lack of flow indicates a clogged radiator. A badly clogged radiator is best replaced rather than flushed. Let me know if you need instructions or have more questions.

check the level of coolant sounds like you had a air bubble in the system and it finally came to the top.which means the coolant will be down.

Replace the coolant level sensor.