Have Toyota Questions? Ask a Mechanic for Answers ASAP
Just to clarify you're saying that the illumination of the instrument panel is not working when you turn the headlights on correct? Do any of the other controls like the heater controls and the switches light up when the headlights are turned on? Did you make sure the dimmer is not turned all the way down or off?
having me help you check a few things is going to be a lot cheaper than taking to a mechanic they are going to charge a minimum of an hour and most shops are at $8o 90 an hour. How would you like to proceed?