Throughout this article, we will explain what “Battery Saver Active” means, the causes, and how to remove or reset it from your Chevrolet Impala.
Let’s get started right now.
“Battery Saver Active.” What Does That Mean?
An indicator of trouble with your Chevy Impala’s charging system is Battery Saver, which is usually a result of low battery voltage detected by the Battery Management System (BMS).
As a result, the BMS activates the battery-saver functionality to prevent completely draining the battery.
You’ll get a Battery Saver Active Alert and any non-essential systems and lights will be turned off/limited by the Power control module.
When Chevy Impala “Battery Saver Active” Alerts, what is the cause?
My experience working on a few Impalas has taught me two things about why Battery Saver Active happens.
1. Weak or bad batteries:
Typically, a bad battery is the cause of an Impala’s battery saver active warning.
Providing enough current to the car’s electrical system depends heavily on the battery’s ability to hold a charge.
Your car’s system will not operate correctly if your battery is bad. A “battery saver active” message appears as a result
It takes 3-5 years for the battery to degrade; most batteries won’t last longer than that (sometimes sooner).
Alternatively, your Chevy Impala’s alternator may not have been able to charge the battery for a while since you haven’t driven it much.
When temperatures drop below freezing levels throughout the winter months, the battery can be drained if your Impala sits for a while.
Consequently, your dashboard will display an active Battery saver alert.
2. Faulty Alternator:
In addition to a faulty alternator, the Battery saver active fault message is most commonly caused by a bad battery.
When you start the car, everything works properly because the alternator charges your battery and keeps it charged.
Through a process known as “regeneration”, mechanical energy is converted into electrical energy.
Alternator failure can be caused by a variety of factors, including
- Wiring issues
- Extreme temperature exposure
- Battery Short
- The normal wear and tear
- Alternator leaks oil/fluid
Low battery voltage can result if the alternator malfunctions, causing the battery to not charge.
In this particular case, a “Battery Saver Active” trouble code will be set by the Power Control Module as a result of this low voltage.
Other issues, such as loose terminals, corrosion, faulty wiring, etc., may also contribute to the problem.
Chevrolet Impala “Battery Saver Active” Fault Fix and Reset
Now that you know how the “Battery Saver Active” fault occurs and what it means for your vehicle, you can identify the specific cause and what it means for you. The solution to this problem will now be discussed.
1. Unplug the battery
Your Chevy Impala needs its battery disconnected first.
All codes will be cleared from memory and the PCM will be reset.
It is important to follow the remaining steps below even if the screen clears up after reconnecting the battery.
2. Battery check
If you’re still getting the alert, you might need to replace your battery.
Take your battery to the dealer, take it to Autozone, or test its voltage yourself using a multimeter.
It is recommended that when the engine is running, the battery reads at least 12.6 volts and when it is off, it should read at least 13.5 volts.
It should be possible to resolve the problem by replacing the battery if it is low on voltage.
3. Alternator test/replacement
Testing your alternator is a good idea if your Chevy Impala battery is good.
You can test and replace the alternator yourself or take it to an auto parts store (Auto Zone, Jiffy Lube).
In order for an alternator to be considered in good condition, it must display a voltage reading between 13.6 and 14.8, at least.
For your Impala to have the battery saver activated, you should replace the faulty component.
Related Articles
Mercedes Red Triangle Warning Light [Meaning & Fix]
BMW Brake Pad Warning Light Error [Solution]
Check VSA System Acura Warning [Explained]
Service Passive Entry System: Troubleshooting
Frequently Asked Questions
What does “Battery Saver Active” mean?
The “Battery Saver Active” message indicates that the vehicle’s electrical system has detected a significant drop in battery voltage, typically below 11.7 volts. This triggers the system to reduce power to non-essential accessories to conserve battery charge and protect the vehicle’s electrical systems.
What causes the Battery Saver Active message to appear?
Several factors can lead to the activation of Battery Saver Mode, including:
Bad Battery: A defective battery that cannot hold a charge properly.
Faulty Alternator: An alternator that fails to provide sufficient charge to the battery.
Poor Connections: Corroded or loose battery connections that lead to voltage drops.
Damaged Cables: Worn or damaged battery cables disrupting power flow.
Faulty Sensors: An inaccurate battery sensor may misreport the battery’s status.
Can a faulty alternator trigger the Battery Saver Active message?
Yes, a faulty alternator can indeed trigger the Battery Saver Active warning. If it is not charging the battery effectively, the vehicle will activate this mode to protect its electrical systems from further depletion.
What should I do if the message remains after repairs?
If the Battery Saver Active message continues to display even after you have performed repairs, it is advisable to recheck all related components—such as the battery, alternator, and connections—or consult with a professional mechanic for further diagnosis.
Is it safe to drive with the Battery Saver Active warning?
While it may be possible to drive with this warning, it is not recommended as it indicates potential issues with your vehicle’s charging system. Continuing to drive without addressing the problem could lead to a dead battery or other electrical failures.
How long does it take for the battery to recharge after turning off accessories?
The time required for a battery to recharge can vary based on several factors, including how depleted it is and whether you are driving at highway speeds. Generally, driving for an extended period allows the alternator to recharge the battery more effectively than idling or short trips.
