Replace the entire thing due to some cracks, burned out motors, etc.
My mirrors have every option, just impossible to find them.
not impossibler, just not cheap every seller wants $200-300 per mirror, the trick is finding them cheaper.
last one I bought I paid like $85.00 shipped from Butler auto dismantling in Florida
I see them on ebay all day and not every seller knows what they have nor do they list them correctly so just do a visual search
they could be listed under avalanche, escalade, yukon, denali, tahoe, suburban. 07, 08, 09, 10, 10, 12, 13, 14, 2007, 2008, 2008, 2010, 2011, 2012, 2013, 2014
or any combination of the above
look for a puddle light and the blind spot cut-out in the mirror glass