Heated outside mirrors

Both mirrors are heated automatically to remove ice, mist and fog when the rear window defrost is activated.
Do not remove ice from the mirrors with a scraper or attempt to readjust the mirror glass if it is frozen in place. These actions could cause damage to the glass and mirrors.
Do not clean the housing or glass of any mirror with harsh abrasives, fuel or other petroleum-based cleaning products.
See also:
Driving off-highway with AWD vehicles
AWD vehicles are equipped for driving on sand, snow, mud and rough
roads and have operating characteristics that are somewhat different
from conventional vehicles, both on and off the highway.
...
BLIS False Alerts
Due to the nature of radar technology, there may be certain instances
when the BLIS will alert with no object present in the blind zone. This
is known as a false alert. Some level of false alerts ...
Mykey
MyKey® allows parents or other concerned owners to restrict certain Lincoln
MKS features when in the hands of a MyKey driver.
Owners simply program the vehicle key through the message center to
in ...
