The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.

See also:
Volume of spoken instructions
Turn the volume button while giving an instruction
until the desired volume is set.
The setting is stored for the remote control currently
in use. ...
Timeshift
Approx. one hour of the program being broadcast
on the channel currently being listened to
is stored in a buffer. Prerequisite: the signal must
be available.
The stored audio track can be playe ...
Notes on Emergency
Requests
Do not use the voice activation system to initiate
an Emergency Request. In stressful situations,
the voice and vocal pitch can change. This can
unnecessarily delay the establishment of a teleph ...
