A parking brake control arrangement for controlling operation of a parking brake of a vehicle, configured to: receive a first indication of whether or not a driver of the vehicle is present in a driver's seat of the vehicle; receive a second indication of whether or not the vehicle being in motion; receive a third indication of whether or not the vehicle is in a towing mode; and control, when the first indication indicates that the driver is absent from the driver's seat, the second indication indicates that the vehicle is in movement, and the third indication indicates that the vehicle is not in the towing mode, the parking brake of the vehicle from a disengaged state to an engaged state.

A system for a vehicle includes a human-machine interface, a microphone that detects sound, a sound source device that emits sound, and a controller that prompts pairing of the sound source device and the microphone, such that the sound source device emits sound corresponding to the sound detected by the microphone. The controller prompts pairing of the sound source device and the microphone in response to at least one of (i) the vehicle entering a reverse mode, and (ii) receiving a user input entered into the human-machine interface via selection of an input option by a user, wherein the input option is made accessible for selection by the user in response to the vehicle entering the reverse mode.

An in-vehicle device includes: a parking state detector configured to detect a parking state of a vehicle; a vehicle cabin situation detector configured to detect a situation in a vehicle cabin of the vehicle; a child information detector configured to detect presence of a child and position information on the child in the vehicle cabin based on a signal from a sensor provided on a child seat in the vehicle cabin; a temperature information acquisition unit configured to acquire temperature information in the vehicle cabin; a notification unit configured to, when the child is left in the vehicle cabin, notify outside of the vehicle that leaving of the child has occurred; and a controller configured to, when the vehicle is in the parking state, control a notification mode of the notification unit according to information including the temperature information in the vehicle cabin.

A system for a vehicle includes a human-machine interface, a microphone that detects sound, a sound source device that emits sound, and a controller that prompts pairing of the sound source device and the microphone, such that the sound source device emits sound corresponding to the sound detected by the microphone. The controller prompts pairing of the sound source device and the microphone in response to at least one of (i) the vehicle entering a reverse mode, and (ii) receiving a user input entered into the human-machine interface via selection of an input option by a user, wherein the input option is made accessible for selection by the user in response to the vehicle entering the reverse mode.