After all these years of owning this car I never knew that the Rheostat dimmer is the same as the Reset trip button located in the Instrument cluster. I use the Reset trip button each week as I travel up and down the Florida highway and not once have I used the Rheostat dimmer to change the illumination of the different lights. I guess I must have push the Reset trip button and turned all the illumination lights off without notice during the day. Later that night when I decided to turn on the lights I had no illumination.

Now I know that if you turn the Reset trip button clockwise or counterclockwise without pushing the button in to reset mileage, it will dim or brighten all illumination lights in the cockpit of the car.

Thank to everyone who help me solve this problem. I hope this can help someone in the future.