See also:

Battery replacement
Be careful not to allow children to swallow the battery or removed parts. ...

Operating the HomeLink universal transceiver
The HomeLink Universal Transceiver (once programmed) may now be used to activate the garage door, etc. To operate, simply press the appropriate programmed HomeLink Universal Transceiver button ...

Boxy Dynamics
I have no reason to believe the Cube is unstable, and it has a standard electronic stability system, but it does feel more top-heavy than the other boxes — and definitely more so than convention ...