I have an older version smart craft on a 02 200 opti. When I shut the engine off I get an engine and bell icon. Nothing while I'm running and no audible horns. Only when I turn off the egine and no beeps. I know the horn works when I first turn the key I get the beep. Computer shows nothing. I did have a thermostat stick open but no alarms. Noticed that my water temp was not right. Can this just be a glitch? Can I do a master reset and see if it will go away?

Thanks