I can't speak for the Jazz, but every car I have owned with 'brake hold', including eHev HR-V & CR-V the brake hold is a pointless gizmo. it will release automatically after a few minutes. If you happen to be pointing uphill it can be very embarrassing as you roll back into the car behind you!!

Unless you are very quick on the foot brake.
Far better IMO to use the parking brake which will stay on until you pull away and then auto release.
I sometimes wonder how on earth we managed without all this electronic cr*ppery they fit to modern 'horseless carriages'.
Actually having to move something called a gear stick whilst depressing a clutch pedal and steering at the same time

. actually having to pull a lever to ensure the car won't roll away, let alone look where you were going when reversing and watching a speedometer to know if you are breaking the speed limit without bings and bongs warning you of various misdemeanours. But then I am 78!!
