Low coolant light is on and the resevoir is full

SOURCE: Low Coolant Light Staying on

This car has sensors on it. If the coolant tank is full and the system is working properly, then one of the sensors is bad.

Have the cooling system presure tested to make sure you have no leaks. If test is good, then look to the sensors.

GM has different systems for each car depending on configuration, so it is hard to point to the one that may be bad.

SOURCE: low coolant light on in 1996 chevy berretta

get a scan tool for that car i believe a tech 2 scanner will work adn clear the codes, if it comes back on then you are going to have to do some more digging

SOURCE: The low coolant light comes

Check your engine oil level the to gauges work on the same curcuit you may be getting a false reading if thats ok it could be a bad connection to the engine temp sensor try playing around with the wires and see if it goes away if it dose then disconnect and clean the connections

SOURCE: I drained and put new coolant in radiator, now the

Low level sensor in overflow tank is stuck tap on it lightly if that doesn't work replace it