The C6 traffic sign indicates that motor vehicles towing a trailer are prohibited from entering the road section ahead. This restriction is typically put in place due to narrow roads, sharp bends, steep gradients, or safety concerns where towing is unsuitable. Drivers operating vehicles with a coupled trailer must therefore find an alternative route or detach their trailer before the restricted zone, if legally permitted and safe to do so. This sign is part of the prohibition signs group, clearly stating a restriction on certain vehicle combinations.
Learn the key details of the C6 - No Motor Vehicles With a Trailer (Specified Trailer Types) road sign, including its function, what it communicates to drivers, and how it applies in real traffic situations in Sweden. Use this overview to understand the sign clearly and recognise it confidently during the Swedish driving theory exam.
This sign prohibits traffic with motor vehicles that have a coupled trailer. It is used where turning space, road width, gradients, or safety conditions make towing unsuitable. The prohibition applies to the road section starting at the sign and continues as regulated, commonly to the next intersection unless otherwise indicated. The sign specifically targets motor vehicles with a coupled trailer of the relevant type, so drivers towing must select an alternative route.
Motor vehicles towing a trailer are prohibited, as specified by the sign’s rule.
Get clear, practical answers to the most common questions about the C6 - No Motor Vehicles With a Trailer (Specified Trailer Types) road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Swedish driving theory exam in Sweden.
The C6 sign means that vehicles classified as 'motor vehicles towing a trailer' are not allowed to proceed past this sign. This prohibition is in place for specific road sections where towing is deemed unsafe or impractical due to road conditions like narrowness, sharp curves, or steep slopes.
If you are driving a motor vehicle with a coupled trailer, you must not enter the road section indicated by the C6 sign. You should either stop before the sign and find an alternative route suitable for towing, or if possible and safe, detach your trailer and proceed with just the motor vehicle, provided this is permitted and practical.
The C6 sign specifically prohibits 'motor vehicles with a coupled trailer'. This means vehicles like cars towing a caravan or a goods trailer are restricted. The exact scope might be clarified by supplementary signs. It does not typically affect motorcycles or other vehicles not classified as motor vehicles towing a trailer.
The sign itself prohibits motor vehicles with trailers. However, supplementary signs might indicate exceptions, specific times when the restriction applies, or exemptions for certain types of trailers. Always look for additional plates below the C6 sign for further clarification before deciding on your action.
A common exam trap is assuming the sign applies to all types of vehicles or not understanding the specific definition of 'motor vehicle with a trailer'. Learners might also forget to check for supplementary signs that could alter the restriction's scope or timing, or fail to identify a safe alternative route when encountering the sign.
A clear reference image of the C6 - No Motor Vehicles With a Trailer (Specified Trailer Types) road sign used in Sweden.

The C6 - No Motor Vehicles With a Trailer (Specified Trailer Types) road sign may also be known by these alternative names or terms.
The C6 - No Motor Vehicles With a Trailer (Specified Trailer Types) road sign is part of the Prohibitory Signs (C) category, which groups together signs with similar rules and functions.