Other information:
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the mirror wiring cover (A).
3.
Push the ECM mirror base up to remove the auto defog sensor & rain sensor
cover (A).
...
The tailgate is locked or unlocked when all doors are locked or unlocked
with the key, transmitter, smart key or central door lock/unlock switch.
Only the tailgate is unlocked if the tailgate unlock button on the transmitter
or smart key is pressed for approximately 1 second or the tailgate ...