If your car’s engine is running but the headlights are dim or flickering, it may be time to check your alternator. Many Advance Auto Parts stores offer free battery and charging system tests.
Simply remove the battery from your car and take it in to have it tested. If the test shows that your alternator is not working properly, you’ll need to replace it.
Advance Auto Parts can test your alternator and help you find the right replacement part for your car. Once you’ve replaced the alternator, be sure to properly dispose of the old one according to your local laws and regulations.