See also:

Clearing the programmed information
Individual buttons cannot be cleared. However, to clear all programming, press and hold the two outside buttons and release when the indicator light begins to flash (approximately 20 seconds). ...

OFF position
When the switch is in the OFF position 3 , the ceiling light will not illuminate, regardless of the condition. ...

Upper tether anchor/key cylinder covers
CAUTION Never force the covers into place because the hinge pins can be damaged. Follow the removal and installation instructions to prevent inoperability of the covers. ...