Understand DGT rules on vehicle lighting in depth. Learn how to correctly use position lights, dipped beams, high beams, and fog lights, as well as the emergency signal and the V-16 beacon. Maximize your safety and the safety of others by seeing and being seen.
This section provides in-depth explanations of Spanish DGT regulations regarding vehicle lighting and visibility. Master all traffic rules for position, dipped, high, and fog lights, along with emergency signals like the V-16 beacon, crucial for your driving theory exam preparation.

Learn why Spanish driving law mandates the use of low beam headlights, or 'luz de cruce', when entering any tunnel or underpass. This article explains the critical importance of being visible to other drivers during the transition from daylight, a key point often tested in the DGT theory exam, and how to avoid common mistakes.
Updated on May 11, 2026

Learn the critical rules for using the rear fog light (luz antiniebla trasera) in Spain, a key topic for your DGT theory exam. This article clarifies the exact adverse weather conditions, including thick fog (niebla espesa), intense rain, and heavy snow, that make its use mandatory, distinguishing it from optional front fog lights and helping you drive safely and pass your test.
Updated on May 7, 2026

While modern vehicles often feature automatic Daytime Running Lights (DRL), it's critical for Spanish drivers to know these are not a substitute for 'luz de cruce' (low beam). This article details why DRLs only illuminate the front and fail to activate rear lights or dashboard lights, making their use at night or in tunnels illegal and dangerous. Mastering these lighting rules is essential for your DGT theory exam preparation and safe driving practices in Spain.
Updated on Apr 27, 2026

Navigate the complexities of using your rear fog light in Spain by understanding the precise conditions under which it is legally required. This guide will explain that the 'luz antiniebla trasera' is exclusively for 'niebla espesa' (thick fog) or similarly adverse weather, and importantly, when it must be turned off to prevent dazzling. Mastering this rule is vital for safe driving and for passing your DGT theory exam.
Updated on Apr 22, 2026

Learn the specific rules for using flashing high beams ('ráfagas') in Spain, a key topic for your driving theory exam. We clarify the legal parameters for using these light signals to warn others, signal an overtake, or indicate an emergency, ensuring you avoid dazzling other drivers and understand prohibited applications.
Updated on Apr 12, 2026

Learn the precise conditions for using your vehicle's high beam, known as 'luz de carretera', in Spain according to DGT regulations. We cover when it's essential for visibility and the critical requirement to switch to low beam ('luz de cruce') to avoid dazzling oncoming traffic, pedestrians, or vehicles ahead. This knowledge is fundamental for safe driving and passing your Spanish theory test.
Updated on Apr 12, 2026

Navigate the complexities of hazard light usage in Spain with this essential guide. You'll learn the precise legal situations where activating the 'señal de emergencia' is required, such as during breakdowns or when signaling an obstruction. This knowledge is vital for safe driving and for correctly answering related questions on your Spanish driving theory exam, helping you avoid common misinterpretations and potential fines.
Updated on Apr 11, 2026
Discover other categories connected to Lighting and Visibility (Spain DGT). These sections help you explore additional topics, expand your understanding of driving theory in Spanish, and build a more complete picture of the rules and situations tested during the exam.
Find answers to common questions learners ask about Lighting and Visibility (Spain DGT). This section helps clarify difficult concepts, highlight critical exam information, and support your preparation for the Spanish driving theory exam in Spain.
Dipped beam headlights are mandatory in tunnels, intersections, and roundabouts, and at night or in low-visibility conditions. They are the main lights used in most driving situations.
Position lights are not mandatory during the day unless you are stopped or parked on an interurban road with reduced visibility. Their main purpose is to make the vehicle visible to others.
High beams are used on interurban roads with poor lighting when they do not dazzle other drivers, whether approaching from the opposite direction or driving ahead of you. They must be switched off or changed to dipped beams if there is a risk of dazzling.
Rear fog lights are mandatory in low-visibility conditions caused by fog, heavy rain, or snowfall. They must be switched off as soon as visibility improves to avoid dazzling others.
The V-16 emergency beacon will replace warning triangles soon. At present, both can be used to signal a breakdown or stop on the road, but the V-16 allows the driver to remain inside the vehicle.
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