What should you do if you see a vehicle with its hazard lights on?

When you see a vehicle with its hazard lights on, it signals that there may be a potential danger or an unusual situation ahead. According to German traffic rules, you should reduce your speed to give yourself more time to react safely. Additionally, you should prepare for sudden hazards, such as the vehicle stopping unexpectedly or people stepping onto the road. This caution helps prevent accidents. Simply continuing to drive as before is unsafe because you might not be prepared for these unexpected events. Therefore, slowing down and staying alert are the correct responses.