What would cause all the dashboard light indicators to flicker on and off periodically? They work as normal but once in a while when driving they will all come on flickering then go out. In the last 2 months, it has happened about 4 times. I have had the car looked at by the dealer for an electrical problem but they found no problems. I have never switched out the original battery since I bought the car, could this be causing this issue? I don't have any issues starting the car so I don't think it would be the battery but thought I would mention it has not ever been replaced.