The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.
See also:
Connecting electrical devices
Sockets
The lighter socket can be used as a socket for
electrical equipment while the engine is running
or when the ignition is switched on. The total load of all sockets must not
exceed 140 Wa ...
Functional readiness of the airbagsystem
When the ignition is switch on,
the warning
lamp in the instrument cluster lights
up briefly and thereby indicates the operational
readiness of the entire airbag system
and the belt tensioner.
...
Distance to back of head: electrical
head restraints
The head restraint is automatically repositioned
when the shoulder support is adjusted. ...