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Q: Headlights, Dash lights, and Tailights turn off in auto mode AT NIGHT when idling on 2005 GMC Yukon XL 1500

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The dash lights, headlights, and tailights turn off after approximately 10-15 seconds when at a full stop idling AT NIGHT. Lights work normal in manual mode, and at driving speeds. The sensor has already been replaced, and it is still failing.
(1) Answer
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you will need a good shop with GM software to diagnose this problem for you. you may have a faulty "convenience"
module, but that's only a guess.
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