Hi folks!
I have pretty much the same truck as this member.
2015 Sierra Denali 2500HD with a Duramax (yes temp sensor in the mirror)
Black Towing mirrors without power fold, without back up lamp and without parking lamp. Basically a truck built in 2014 with the old gm towing mirrors... Thanks GM for putting these on my 80 000$ (CAN) truck...
I d like to buy all that can be sourced via pgamboa to achieve a setup with all the the options possible, meaning; power fold, back up lamp, parking lamp, parking lamp that blinks on the front of the mirror.
Standing by !