Why is my Battery Light on?

Car battery light on

If you notice your on, you’re probably wondering why that is. The warning light is used to notify the driver of a problem with the vehicle’s system.

  • The light may be red or amber and displays the “CHG” or “ALT” icons.
  • The indicator light is red and displays the “BATT” when the key is in the ignition and the is off.
  • Most commonly, there’s a red icon that represents a car battery.

The components of your vehicle’s system include the battery, cables, alternator, voltage regulator, and serpentine belt (which drives the alternator). A problem with any one of these components will turn that on.

Testing & Diagnosis will typically be required to figure out where exactly the problem lies. However, there are a few things you should check first.

Beyond that, you’ll need access to tools and electrical testing equipment. An AAA card may be your best bet if you’re not mechanically inclined.

If the is on and you’re still driving the car, turn off as many electrical accessories as you can, such as the stereo, air conditioning or heater, and avoid using electrical controls such as power windows. Reducing the amount of electricity the car is consuming will increase the distance you can drive before the battery is discharged. Get to a mechanic as quickly as possible, and have the battery, wires and system checked out to find the cause of your problem and what you need to repair or replace!

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