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Probably because the dimmer switch is turned off. Turn the dimmer switch up and see if the dashlights and radio illumination lamps come on.

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17y ago
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15y ago

Probably a loose wire or a short in the wiring that powers the dashboard lights.

Also check the fuses and the wiring to and from them.

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Q: What causes the dashboard lights and radio light to turn off when the headlights are on in 2004 Sienna?
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When i 2005 escape you turned on headlights and radio lights went out turned off headlights lights came back on radio?

If you turn up your interior dashboard light settings, then the radio display will be brighter too. The radio dims to the setting for the dashboard when the lights are turned on.


1980 Camaro tail lights and dashboard lights do not work brake lights and turn signal lights do Any solution to fixing problem?

Most often the tail lights and dash lights share a single feed and fuse. Assuming you have checked the fuses (probably marked as tail or courtesy) then I would next check the head light switch. If you have good fuse and the head light gives a voltage out while in the 'parking light' position (usually between off and headlights) then you need to start chasing wiring. If you need more, post another question, and I'll see if I can walk you further down the path. I had this exact same problem and found out that the headlight switch was just making enough contact with the plug for the headlights to work. We plugged that in and the tail lights and dashboard lights started working also.


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