Instrument cluster lights
My dash lights come on when I start my truck during the day but go out again
shortly after. They work fine when the headlamps are on. But it is very difficult
to see the gauges during the day time.
The truck has dash lights turned up to maximum during the day to allow the driver to see them in sunlight. If your lights go off during the day, without headlights on, you likely have a defective ambient light sensor or the light switch is broken.