Opel Astra J 1.4 Turbo 2019 Owner's Manual page 15

Turn and lane-change signals
lever up : right turn signal
lever down : left turn signal
Turn and lane-change signals
3 100, Parking lights 3 101.
Hazard warning flashers
Operated by pressing ¨.
Hazard warning flashers 3 100.
In brief
Horn
Press j.
13