If you are left immobilized by a breakdown or emergency on a one-way urban road, how must you signal your vehicle?

Question

DentroTest · Accepted Answer

In any immobilization due to an emergency or breakdown, other users must be warned of the vehicle's presence immediately by switching on the hazard lights (all the indicators at the same time) and activating the V-16 warning light on the highest part of the bodywork or cab. The V-16 warning light emits a flash visible at 360 degrees from a long distance and avoids having to walk on the roadway to place devices, significantly reducing the risk of being run over. Warning triangles are no longer a valid device as of 1 January 2026: only the connected V-16 is valid. That is why placing two triangles, one in front and one behind, is incorrect, and so is using only triangles, which also omits the hazard lights.

If you are left immobilized by a breakdown or emergency on a one-way urban road, how must you signal your vehicle?

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