Other information:
The center displays the approximate
instantaneous fuel economy as a number
and bar graph. Displayed above the bar
graph is a running average of fuel economy
for the most recently travelled selected
distance. Displayed below the bar graph is
the best average fuel economy that has
been achieved for the selected distance...
GM collects information about the use of
your vehicle including operational and safety
related information. We collect this
information to provide, evaluate, improve,
and troubleshoot our products and services
and to develop new products and services...