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Swiss Driving Theory · RTA / TRO

Use of Lights

The right light at the right time makes you visible without dazzling others. Switzerland has clear rules for this.

Daytime running or dipped lights – always

Since 1 January 2014 there is a daytime lights requirement: motor vehicles must drive with daytime running lights or dipped headlights even during the day. Driving without them is fined.

Dipped headlights

Dipped headlights are the standard lighting. They are compulsory:

  • at dusk, in darkness and at night,

  • in tunnels,

  • in poor visibility (rain, fog, snowfall).

Main beam

You may use the main beam only when no one is dazzled:

  • Dip for oncoming traffic and when following another vehicle.

  • In built-up areas with street lighting the main beam is generally not used.

  • You must also dip when crossing the path of trains or boats.

Fog lights

  • Front fog lights may only be switched on in fog, heavy snowfall or heavy rain.

  • The rear fog light is permitted when visibility is below 50 metres. In better visibility it must be switched off, as it dazzles.

Parking lights and hazard lights

Parking lights only serve to mark a parked vehicle. In a breakdown or danger you use the hazard warning lights.

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