Final answer:
If your car's headlights are not working well, you should clean and maybe adjust them, but you should not leave your high beams on as this can blind other drivers.
Step-by-step explanation:
If the headlights on your car are not working properly, there are a few steps you should take to address the issue. First, you should clean the headlights to ensure that dirt or oxidation is not limiting their effectiveness. Next, if necessary, you should adjust the headlights so that they are properly aligned, ensuring the best possible visibility and that they do not dazzle other drivers. However, one thing you should not do is leave your high beams on when they are not required for visibility, as this can blind other drivers and is considered unsafe and inconsiderate.