Resurrecting this thread. I'm buying my first Denali, and I want to add the power folding tow mirrors. 2017 Denali 1500 The dealer is telling me the mirrors won't power fold, but all other electronics will work. They're saying to order part 23372181, which is a package of two mirrors, I believe. Based on price alone, I assume this kit is different from the separate mirror and harness parts listed above. Perhaps these are the manual fold mirrors? Thanks in advance for any help!