A battery saver active message came on this morning on my 2009 Chevy UPlander. Do I need to have the battery checked?

A battery saver active message came on this morning on my 2009 Chevy UPlander. Do I need to have the battery checked?
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
A logical first step is to have the battery load tested and, at the same time, measure the output of the charging system to determine if the charging system is functioning. If the battery fails the load test (OR only passes "marginally"), replace the battery. The charging system output has to be measured and verified though regardless of the status (condition) of the battery. In the event that a mechanic does not detect any fault with the battery (or installs a new battery) and charging system output measures within requirements, yet the warning light remains that would mean there is something wrong in the electrical system, probably in the charging circuit. Occasionally, though, alternators fail "slowly" or intermittently and thus if the light does remain a closer look will be required. In all events, if you request the battery load test, which will include an evaluation of your charging system, the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

How to Identify and Fix Common car Problems ?

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Hi there. The Battery Saver Active message can appear on your driver information center (DIC). When the DIC displays this alert, that means that your battery has a low charge, and your vehicle is shutting off certain systems that may drain the battery of life.
This message displays when the vehicle has detected that the battery voltage is dropping beyond a reasonable point. The battery saver system starts reducing certain features of the vehicle that you may be able to notice. At the point that features are disabled, this message is displayed.
The battery saver feature helps conserve power when a system is running on battery. When battery saver is on, some Windows features are disabled or behave differently. Users can choose to enable battery saver when the battery level reaches a certain percentage.
No. There`s no risk to your phone`s battery when you use Battery Saver mode. In some ways, it may even extend the battery`s life as you aren`t constantly recharging it. Ultimately though, you don`t have to worry about it ruining the battery while using this battery-saving mode.
Battery Saver, Power Saving, or Power Saving Mode is a feature available on all Android devices that aims to limit power consumption, so that your battery lasts a little longer until you get to charge it again. When turned on, this feature can add another hour or two to how much your battery lasts.
To keep your battery fit and healthy, it`s helpful to start the car up once a week and let it run for 15 minutes, in a well-ventilated place. Never leave your car`s engine running in an enclosed space like a garage, as this can cause a deadly build-up of carbon monoxide gas.
This happens when you turn on High performance mode under Developer options in Settings. High performance mode requires additional battery power to maximize CPU performance.
You can turn on Battery Saver mode at any time. Just head to Settings, Battery, and then Battery Saver. Once there, tap Use Battery Saver to enable it. You`ll also see an option to have this mode turn on automatically.
The battery current sensor is an amp clamp that measures current flow into and out of the battery. The current sensor then translates flow into a variable duty cycle signal. The sensor then sends this variable duty cycle to the BCM to indicate current flow.
When the battery saver warning indicates that the battery voltage has dropped below and acceptable level and the vehicle is shutting off accessories to keep the vehicle running. If this light is seen the vehicles battery and charging system will need to be load tested.
This happens when you turn on High performance mode under Developer options in Settings. High performance mode requires additional battery power to maximize CPU performance.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

A battery saver active message came on this morning on my 2009 Chevy UPlander. Do I need to have the battery checked?
ANSWER : A logical first step is to have the battery load tested and, at the same time, measure the output of the charging system to determine if the charging system is functioning. If the battery fails the load test (OR only passes "marginally"), replace the battery. The charging system output has to be measured and verified though regardless of the status (condition) of the battery. In the event that a mechanic does not detect any fault with the battery (or installs a new battery) and charging system output measures within requirements, yet the warning light remains that would mean there is something wrong in the electrical system, probably in the charging circuit. Occasionally, though, alternators fail "slowly" or intermittently and thus if the light does remain a closer look will be required. In all events, if you request the battery load test, which will include an evaluation of your charging system, the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

My battery saver active message came up on my car does this mean I need a battery or no?
ANSWER : Hi there. On a Hybrid vehicle, The Battery Saver Active message can appear on your driver information center (DIC) from time to time. In most cases, when the DIC displays this alert, that means that your battery has a low charge, and your vehicle is shutting off certain systems that may drain the battery of life.This doesn’t always mean that the battery needs to be replaced, but more likely that it simply needs to be fully charged.

I have a 2007 Chevy Impala…battery saver active mode
ANSWER : Hi There,
This can be caused by a loose battery cable which is often times the problem. Try checking to be sure they are connected properly. Also, there is a sensor that has 3 small wires running to it that is likely taped to one of the large battery cables. This sensor can fail at times as well causing this to happen. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your car.

Keep getting Battery saver mode on my message screen and i replaced the battery like the dealer said.. message came back on?
ANSWER : Hello. A battery saver mode light can sometimes be set off by an issue with the battery, but it is also often set off if a problem occurs with the alternator, such as low or excessive output from a failed voltage regulator.

I would check the alternator to make sure that it is in proper functioning order, as an alternator issue can not only cause problems with the vehicle, it could also cause damage to the battery.

If you’d like to get this repaired, feel free to contact a certified mechanic who can diagnose the cause of the battery light firsthand and replace the alternator if necessary.

Do I need a new battery on 2014 Volt if it says Battery Saver Active?
ANSWER : The diagnostic test that is typically used to determine if a battery is good or bad is the "load test". YourMechanic can perform such a test in the field, and if your battery turns out to be bad, a certified Mechanic can replace the battery. Only fully charged batteries can be load tested. If it turns out your battery is good, but it is not maintaining voltage in use, there could be a problem with your car’s charging system. At the same time that your battery is tested, YourMechanic can test the output of the charging system. If the battery tests good and the charging system output is within specification, and yet the battery light is still on, there could be a short, or excess current draw on one of the circuits served by that battery. Regardless of what the problem is, if you set you a diagnostic with YourMechanic a certified professional will resolve this problem for you.

Battery saver mode came on again?
ANSWER : Hi there. Check the battery cables and make sure that they are tight and clean. Check the wires on the alternator and make sure that they are clean and tight. Check the ground circuit on the fuse box and insure that its grounded properly. Check the battery for a load with a load tester. It is possible that the battery could have a burned cell even though it may have 12.6 volts. If you need further assistance with your battery saver message on, then seek out a professional, such as one from Your Mechanic, to help you.

What does "battery saver active" mean?
ANSWER : Hello. Your message indicates that the electrical system voltage has fallen to 11.7 volts. This is rather low for a modern car with the engine running – normal voltage should be about 13.0 volts. Perhaps your new alternator has a bad voltage regulator which is preventing the alternator from charging at the expected rate. If warranty is still available on the alternator, I would return to the facility which installed the alternator. It is not charging at the expected rate. If they can’t find the problem, have a professional mechanic, such as one from YourMechanic, inspect your alternator for you.

Check engine check battery leaking smoke
ANSWER : If it was leaking "antifreeze" or "coolant" on the freeway, that signifies a cooling system leak although it is also possible that your car is overheating (due to a cooling system problem like a stuck thermostat or an engine issue) and the overheating simply caused the pressure relief valve in the radiator cap to open expelling steam and liquid coolant. It’s hard to say which is occurring without looking at the car directly. Consider YourMechanic, as one of our mobile technicians can come to your home to diagnose the Check Engine Light and other symptoms.

The fault with the battery is possibly a coincidence and the electrical issue will have to be dealt with as well. It’s not unusual for older cars to have multiple problems but the problems are not directly related; they are merely coincidental.