Switching hazard warning lights on or off
To switch on and off:
press button 
. If you operate a turn signal indicator while the hazard warning lights are switched on, only the turn signal lamps on the relevant side of the vehicle will light up.
The hazard warning lamps will switch on automatically if:
the airbag is deployed
the vehicle is sharply braked from a speed of more than 70 km/h to a standstill
The hazard warning lamps will automatically switch off when the vehicle regains a speed of more than 10 km/h after maximum full-stop braking.
The hazard warning lights will work even when the vehicle has been switched off.