Flashing Yellow
The signal indicates caution, proceed with care
When You See This Sign
When you see flashing yellow you should immediately reduce speed, look carefully in all directions, and only proceed when it is safe. You do not have automatic right of way — follow right-of-way rules and be prepared to stop for other road users or pedestrians.
Rules & Regulations
- A flashing yellow signal means you should proceed with caution and be prepared to stop if necessary.
- Flashing yellow does not grant automatic right of way — follow the right-of-way rules, road markings, and traffic signs at the location.
- If flashing yellow applies to a pedestrian crossing, you should reduce your speed and yield to pedestrians according to the applicable rules.
- If a police officer or other traffic controller gives different instructions, you should follow them instead of the signal.
Tips for Drivers
- Reduce your speed in good time and scan crossing traffic, cyclists, and pedestrians before continuing.
- Do not rely solely on the flashing yellow light — check road signs and markings that may affect right of way.
- Be especially alert in poor visibility or night driving; multiple road users may interpret the signal differently.
- If you are unsure about the situation, stop if necessary to avoid danger.
Common Mistakes
- Thinking flashing yellow is the same as green and thus taking right of way or driving at full speed.
- Ignoring pedestrians or cyclists at a crossing because you think the signal gives free passage.
- Confusing flashing yellow with flashing red and believing you must stop completely without assessing the situation.
Test Yourself
Road Sign: Flashing Yellow
What is expected of you as a driver when you see this flashing light?
- A Proceed with caution and be alert.
- B You must stop before continuing.
- C The signal means that railway crossing is prohibited.
- D You should wave pedestrians to cross.
Exam Tip
On the theory test, a question may try to trick you into thinking flashing yellow means free passage or that you must stop — the correct answer is that you should proceed with caution and follow the right-of-way rules; it is especially important to distinguish it from flashing red.
Did You Know?
The signal's code in the Swedish Transport Administration's signal register is SIG5, and flashing yellow is often used to warn of temporary conditions (e.g., roadworks, temporary traffic signal control, or when permanent signals need to draw road users' attention).
Frequently Asked Questions
Do I have to stop at a flashing yellow?
No, you do not have to stop automatically at a flashing yellow, but you should be prepared to do so if the situation requires it. Only continue when it is safe and you have observed other traffic and pedestrians.
Do I have right of way when the light is flashing yellow?
No, flashing yellow does not grant right of way by itself. You must follow existing right-of-way rules, traffic signs, and road markings to determine who has priority.
Does flashing yellow also apply to pedestrians at crossings?
Yes, if the signal refers to a pedestrian crossing you should reduce speed and yield to pedestrians who wish to cross. Be especially attentive because pedestrians often expect vehicles to stop.
What do I do if a police officer gives a different instruction than flashing yellow?
You should always follow the police officer's or traffic controller's instructions because they take precedence over traffic signals. Act immediately according to their signals to avoid dangerous situations.
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