A faulty temperature sensor can cause the ECm to think your engine is overheating, this turning the heat light on constantly. You should make sure that your engine isn't in fact overheating though.
Could be alarm...
saturns are funny remove coil pack clean both surfaces block and bottom of coil pack
I believe you hold the trip odometer button while turning on the ignition.
It's loose. Find the tensioner, and adjust it.
The light is the low coolant light. It is NOT an overheating light it just means your coolant level is low
Low of coolant or overheating.
Saturn's light is reflected Sunlight.
I suggest you take your car to the dealer and they might be able to fix the problem.
check the radiator
Saturn is approximately 9.5 AU from the sun, which is about 0.00015 light years.
Saturn's primary source of light is the Sun. The Sun illuminates Saturn just like it does the other planets in our solar system. Additionally, Saturn's rings and moons also reflect sunlight, adding to the brightness of the planet.