Vehicle basics for the Swiss theory exam

Vehicle lighting – when to use which light?

Correct use of vehicle lighting is a frequent exam topic. Since 2014, Switzerland requires daytime lights—either dipped headlights or daytime running lights must be on for every journey.

• Dipped headlights – mandatory at night, in tunnels, in poor visibility
• Daytime running lights – sufficient during the day in good visibility
• Full beam – only outside built-up areas with no oncoming traffic
• Sidelights – only for marking a parked vehicle at night
• Fog lights – only in heavy fog, snowfall or rain

Tyres – tread depth and pressure

The minimum tread depth in Switzerland is 1.6 mm. At least 3 mm is recommended in summer, 4 mm in winter. Check tyre pressure regularly when tyres are cold.

Brakes – ABS and braking distance

ABS prevents wheel lock-up during emergency braking and maintains steering ability. The braking distance depends on speed, road surface and tyre condition. Rule of thumb: braking distance = (speed ÷ 10)².

Safety equipment

• Seat belt – mandatory for all occupants
• Child seat – children under 12 or under 150 cm need an appropriate restraint
• Warning triangle – must be carried and deployed in case of breakdown