See also:

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. ...

Safety note
- Do not disassemble or modify this system. If you do, it may result in accidents, fire, or electric shock. - Do not use this system if you notice any abnormality, such as a frozen screen ...

Ceiling light
Ceiling light The ceiling light switch has three positions: ON, DOOR and OFF. ...