Question about 2008 Jeep Patriot

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When i turn headlights on...radio lights go out..they come on when i turn dimmer switch..but then dome lights wont go off...tried it on all different positions...2008 patriot

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It sounds to me like you may have a defective dimming switch. Are the instrument cluster lights working as they should? Do they dim/brighten with the dimmer? If the instrument cluster is working OK, then it could be an internal problem in the radio unit itself. Your panel lights are computer controlled. The processor in the instrument panel controls them. It uses a digital signal to "tell" the radio to either dim or brighten its lights. If the radio is failing to do so, the radio is the most likely cause since the lights work on "full power" which is also commanded through the same data lines. (this eliminates the signal from the cluster and the connection through the data lines.)

Posted on May 23, 2011

  • Darren Zoppa
    Darren Zoppa Aug 26, 2013

    I installed HID lights in my Patriot, I also changed out all the old yellow looking incandescent bulbs from the domes for LED bulbs. After doing this I noticed that when I turn the headlights on AFTER the car was started the same thing happened. The radio would turn off and then gradually come back on. Also whenever I'd open a door my dome lights would come on, but not go out. That is they faded but didn't turn completely off. My solutions was to add a capacitor in series with the power and ground to each of the HID headlights, and as for the dome lights I installed an inline resistor to sort that ghost that wanted to be in the spot light. This is just my two cents.

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