My check gauges light also appears quite often. Im glad to read that its not just my vehicle. With my vehicle the check gauges will often come on by itself while all gauges read fine, or come on in conjuntion with the orange "Low Fuel" light.....even if I have a full tank of gas far above the "F"
I was thinking about putting black electircal tape over it at one point because it annoys me while I'm doing night driving. But with the age of the vehicle and the small problems that do occur I don't want to risk it.
Everyone always tells me I should get it looked at and that its probably just a short. Least I know not to bother now.