While the battery light may not be as concerning as the check engine light, it is still an indicator that you should not ignore. If your battery is bad or there is a problem with your charging system, it is just a matter of time before you are likely to end up stranded, unable to start your vehicle. There are different reasons that your battery or charging system light might come one, most of which require fairly minor or inexpensive repairs.
Loose or Corroded Battery Cable
The first thing to check when your battery light comes on is the battery cable connections. Sometimes removing and firmly reattaching the battery cables can be enough to make the light go off. If your battery cables are corroded, you can easily clean them with a cleaner from any automotive parts store, or with straight original Coca-cola. (Other sodas will not work.) If the battery cables appear to be severely corroded or damaged, you’ll want to have a mechanic take a look.(more…)