2010 GMC Yukon Owner's Manual - Page 37
2010 GMC Yukon Manual
Page 37 highlights
Fuel Economy Gage There are three zones on the drive efficiency gage. Green Zone : Fuel efficient driving behavior makes the indicator display in the green zone on the gage. White Zones : Decreased fuel efficiency driving behavior makes the indicator display in the two white zones. The indicator in the white zone on the left side of the gage indicates decreased fuel efficiency with a large amount of decelerations. The indicator in the white zone on the right side of the gage indicates decreased fuel efficiency with a large amount of accelerations. United States Canada This gage shows displays how efficiently the vehicle is being driven. 4-5