2020 Yukon Denali Ultimate : Power Stair Lights

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ScottBl

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Trying to find a video or instructions in order to change/replace the led strip of lights on the drivers side auto stairs. No visible damage but only the door puddle light works, not under the stair when extended on drivers side.

Passenger lights up … and both extend and pull in without issue. Dealer suggests it would no longer be under warranty or their extended GM warranty. They suggested the led light strip is quite expensive. One even suggested entire stair is replaced, which seems out of place.

Some posts her suggest removing a cap ?? Others suggest a module or relay ?? Any true definition of steps to possibly test / resolve and images would be appreciated. If fuse was blown, stair would likely become inoperable. So …
 

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