Ive noticed that my blue Temp light comes on when the car is cold I know this is normal but some times it turns on after it comes off and last night it turned on and blinked a few times and turned off does anyone know what this means?
Either there's a sensor problem or the fluid's just barely low enough that it's dipping out from around the sensor. Open the coolant resevoir, and look down, if the wires aren't covered, add some distilled water. (50/50 w/G12 coolant, but being in TX I would think you'd be okay deviating for a small 'touch-cup')
I had the same problem - it was a bad coolant temp sensor. Last I checked its about $6 and requires no special tools to replace. It's located at the upper radiator hose on the "heart valve" that bolts to the driver's end of the cylinder head.