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OEM Denali headlight swap with SLE 2018


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Help please, so I’ve replaced both my headlight assembly with a Yukon Denali headlights and and it’s flickering off and on because I’m sure the wiring are different. Is there a wire harness I need to make it work, thanks.

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Not sure about the 2018 model year, but previous years your BCM had to be programmed to use the headlights from the higher level trim. Not sure a wiring harness will do anything. But you could check gen5diy.com to see if they have anything. But like I said, I don’t believe it’s as simple as a harness. The BCM may require programming. 

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52 minutes ago, Kay11 said:

Help please, so I’ve replaced both my headlight assembly with a Yukon Denali headlights and and it’s flickering off and on because I’m sure the wiring are different. Is there a wire harness I need to make it work, thanks.

 

 

Pretty sure you are gonna be selling those and putting the originals back in.  Gen5diy makes a PnP kit for Sierra but the plugs are wired differently for Yukon.

 

Would be a better option to add HID or LED bulbs to the stock headlights.  

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