Hi,
The vehicle has an intelligent battery sensor that records all kinds of information. From the battery's stability, temperature, voltage dip on last start up (which is used to calculate the battery's age based on change) and so on, the battery is constantly being watched.
If you are seeing the light, the battery may be getting old and the system is picking up weakness or change. Don't be over concerned at this point, but if you start noticing a slower start or the light coming on all the time, replace the battery.
Also, make sure to purchase a new battery that meets all the vehicle's needs.
Let me know if this helps or if you have other questions.
Take care and have a good weekend.
Joe
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Saturday, February 29th, 2020 AT 6:44 PM