Cadillac CTS 2008 Owner's Manual page 192

AVG (Average) Economy
This display shows the approximate average miles per
gallon (mpg) or liters per 100 kilometers (L/100 km).
This number is calculated based on the number
of mpg (L/100 km) recorded since the last time this
display was reset. To reset this display to zero, press
the set/reset button.
Timer
This display can be used like a stopwatch. You can
record the time it takes to travel from one point to
another. To access the timer, press the trip/fuel button
until Timer 00:00:00 displays.
To turn on the timer, press the set/reset button until the
timer starts.
To turn off the timer, press the set/reset button again.
The timer stops and displays the end timing value.
To reset the timer to zero, press and hold the set/reset
button after the timer has been stopped.
3-50
Inst (Instantaneous) Economy
This display shows the current fuel economy
in either miles per gallon (mpg) or liters per
100 kilometers (L/100 km). This number reflects only
the fuel economy that the vehicle has right now
and changes frequently as driving conditions change.
Unlike average economy, this display cannot be reset.
AVG (Average) Speed
This display shows the average speed of the vehicle
in either miles per hour (mph) or kilometers per
hour (km/h). This average is calculated based on the
various vehicle speeds recorded since the last reset of
this display. To reset this display to zero, press the
set/reset button.
Speedometer
This display shows a digital speedometer in the DIC.
The speed displays in either miles per hour (mph)
or kilometers per hour (km/h). To change the units from
English to metric, see "Units" later in this section.
Blank Display
This display shows no information.