It would be a good idea to count the number of flashes like already said, so you could at least pinpoint the problem.
But if you're tired of looking at the light, you can reset it if it's not a hard code.
Under the glove box there will be a grey plastic connector that's not connected to anything. Take a paper clip and unbend it. Turn the car on. Touch the paper clip to both of the metal pieces inside of the connector to complete the circut afer the first sequence flashes. Example, if its code 85, after it flashes 8 and 5. Hold the paper clip there until you hear beeping, you're done and the computer will be reset.
You might be lucky and it's a random event. Or you could have my situation and my light still comes on randomly every now and then.