2005 Chevy Impala

[quote:833ebdfacb="2005impalagigi"]Other Category problem
2005 Chevy Impala 6 cyl Wheel Drive Type unknown Automatic 64000 miles
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my thermostat is rising to 260 when the car is on stop mode but when is running (on the road) is goes to the middle of the thermastat. is that normal?[/quote:833ebdfacb]
check coolant level
check if the coolant fan working when above 230
they should be working
if not check the fuses and relays
let me know