Truck Forums - 2001 GMC Sierra 2500 headlights and 4 wheel drive go out together intermittently

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Brian Villers

11-01-2022 12:35 PM

2001 GMC Sierra 2500 headlights and 4 wheel drive go out together intermittently

My 2001 GMC Sierra has this problem where the 4 wheel drive buttons go out and when this happens the headlights won't work. Then intermittently they both cone back on and work for a while. Any ideas why these two things would be connected?

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