Posted on 9/26/2025
The alternator plays a bigger role in your vehicle than many drivers realize. While the battery gets your car started, the alternator supplies electricity once the engine is running. It recharges the battery and powers everything from the headlights to the fuel injectors. Without it, your vehicle can only run for as long as the battery has charge, which may be a matter of minutes. Recognizing the warning signs of alternator trouble can prevent unexpected breakdowns and expensive damage. Dim or Flickering Lights One of the most common indicators of alternator trouble is lighting that behaves strangely. If your headlights dim when you accelerate or your dashboard lights flicker at idle, the alternator may not be keeping up with demand. These symptoms often appear gradually and may come and go, which makes them easy to overlook. However, inconsistent voltage is usually the first sign of a charging system problem and should be checked immediately. Dashboard Warn ... read more