Why would battery light come on with new battery?
There are usually two things that cause the battery light to come on after a battery replacement. The most common is a loose connection – perhaps a terminal connector was not tightened sufficiently when the battery was replaced.
What do you do when your battery light comes on?
What to do if your battery light comes on:
- Inspect the battery. Check your vehicle’s battery for signs of corrosion on or damage to the terminals.
- Check the alternator. Take a look at your alternator for any loose or missing electrical connections.
- Look at the serpentine belt.
- Check your fuses.
- Test the battery.
How do you know if its battery or alternator?
An illuminated dashboard light can indicate a problem with an automobile charging system. However, a very simple way to check if the alternator is working is to run the car and disconnect the positive terminal of the battery. If the vehicle stops running, then you probably have a bad alternator.
Why does the battery warning light come on?
The battery warning light in most cars indicates there is problem with the charging system as a whole, not just the battery. It sounds to me like you have a problem with your alternator. The airbag computer will set a code and turn on the warning light when the system voltage is too high, or too low.
When does the battery light come on in a car?
First things first: if the battery light comes on in your car when you turn it on, you probably have nothing to worry about. Sometimes the battery light will come on when you start your car, but then the light will quickly flick off. If this is the case, pay it no mind.
What to do if your car battery light is not working?
Get the alternator or wiring fixed, and properly recharge the battery at the same time. The folks at AutoZone can always help with battery and charging system issues, both on the car, and with the parts off the car.
What happens when you change the battery in a car?
A relatively common “side-effect” of replacing a battery and/or alternator in a car is to have the voltage (battery) warning light come on. This is especially true in late-model vehicles with their more sophisticated internal diagnostic systems. There are usually two things…