Looking for information on 2017 Malibu LT
 

I have a 17 Malibu with the 1.5L engine, I am trying to find documentation on the info display next to the speedometer on the dash particularly I am looking to find any information on the economy and what is the purpose of the battery to the left of the economy gauge and why it is there. I seems to turn green after coasting a bit, so I am trying to find out what it means. If someone has a link to documentation or could point out where it is referenced in the manual, I can look.

Thanks

Roger