Back to all

Feeling Powerless (Why Is My Battery Light On?)

February 18, 2024

When one of your vehicle’s warning lights comes on, the first thing that comes to mind is, “Oh, no, what’s wrong now?” When it’s the battery light, it means there’s something wrong with your vehicle’s battery or charging system.  And because both are important for your vehicle to work properly, it’s a good idea to get it checked out.  Here are some things that may cause a battery light to illuminate.

It could be that your battery has failed.  It could be on its last legs or completely dead.  When it isn’t showing it has the voltage it should, your vehicle lets you know.

If it’s not the battery itself, it could be the system that charges it.  The alternator is part of that system and could have a problem.  It could be putting out no power, too little power, or too much.  The alternator may not be working because the belt that drives it (using the engine’s mechanical power) could be broken or slipping.  Or the alternator pulley may be broken.

The alternator needs to have a solid connection to the battery, and sometimes the posts that connect to the battery cables get so corroded, they can’t conduct enough electricity. Or it could be that a battery cable isn’t conducting power properly. 

Because the alternator supplies power to other parts of your vehicle, if it gets overloaded, it will also cause your battery light to come on.  Other possibilities are an electrical short in the charging system or a failed voltage regulator.

Your vehicle may be hard to start or it may not start at all if you have any of these problems. It’s important to bring it in to us so we can diagnose and repair the problem before you wind up stranded… and feeling really powerless.  

Tuffy Ocala
2105 Southwest College Road
Ocala, Florida 34471
(352) 690-6111

More articles from Tuffy Ocala

How Cool is That! (Coolant level sensor replacement)

April 20, 2025

Your vehicles engine runs hot. It should, since its a series of little explosions that create the power that gets you going where you want to go. To keep the engine cool, engineers have designed wonderful cooling systems that use liquid coolant, hoses, and a radiator to transfer the heat from t... More

Making Sense of the O2 Sensor (Oxygen Sensor Replacement)

April 13, 2025

As you know, todays vehicles rely on a lot of computers in them to keep them running clean and efficiently. Those computers depend on information delivered by several sensors throughout the engine and exhaust system. And one of the most important is the oxygen sensor. Known as the O2 sensor f... More

Not So Cool (Air Conditioning Systems)

April 6, 2025

There's nothing quite like getting in your vehicle on a hot day, switching on the air conditioning and having warm air blow out of the vents. You may have had no problem for months and then, one day, you are driving around in a sauna. You're hot stuff, but not in a good way! So what goes wrong w... More