I've got a 2018 yukon denali.xl with power running boards. I bought it used last year, and didn't realize that I could've continued to look for one without them. Living in WI, I figured they'd give me trouble with the winter weather. Sure enough, for the last 3 months the passenger side board mostly stayed extended, even when I sprayed the gunk out of the hinges. It would clunk multiple times, but not retract consistently.
I asked the dealer and my body shop, and both wanted to replace the motor for about 1k, I think.
Today I was at menards and grabbed some 3-1 garage door lube. I had just washed the truck yesterday at the manual car wash, so the hinges were clean. I gave them a good spray of the garage door lube, and within minutes, it started working exactly as it should. It irritates the hell out of me that the dealer was just going to make me waste a thousand bucks for something this simple!
