I just picked up a 2006 HSE to replace my SE with 165k on the clock. The HSE is great but I have one issue I have not figured out. The low coolant warning is on even after replacing the bottle, sensor,etc. same thing happened to my SE but I had the dealer replace it. This time I tried to save myself some money but don't know if I need to do something else to turn off the warning. Hope someone can help!