GMC 2012 Sierra Series Owner's Manual page 175

Instantaneous Economy and
Active Fuel Management
Indicator
If the vehicle has this display, press
the trip/fuel button until INST ECON
V8 displays. This display shows the
current fuel economy at a particular
moment and will change frequently
as driving conditions change. This
display shows the instantaneous
fuel economy in liters per
100 kilometers (L/100 km) or miles
per gallon (mpg). Unlike average
economy, this screen cannot be
reset.
An Active Fuel Management
indicator displays on the right side
of the DIC, while INST ECON
displays on the left side. Active Fuel
Management allows the engine to
operate on either four or eight
cylinders, depending on driving
demands. When Active Fuel
Management is active, V4 will
display on the DIC. When Active
Fuel Management is inactive, V8
will display. See Active Fuel
®
Management on page 9 35 for
more information.
Blank Display
This display shows no information.
Vehicle Information Menu
Items (with DIC Buttons)
(Vehicle Information): Press
this button to scroll through the
following menu items:
Oil Life
Press the vehicle information button
until OIL LIFE REMAINING
displays. This display shows an
estimate of the oil's remaining useful
life. If you see 99% OIL LIFE
REMAINING on the display, that
means 99% of the current oil life
remains. The engine oil life system
will alert you to change the oil on a
schedule consistent with your
driving conditions.
I n f o r ma t i o n P r o v i d e d b y :
Instruments and Controls
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See CHANGE ENGINE OIL SOON
under Engine Oil Messages on
page 5 45. You should change the
oil as soon as you can. See Engine
Oil on page 10 7. In addition to the
engine oil life system monitoring the
oil life, additional maintenance is
recommended in the Maintenance
Schedule in this manual. See
Maintenance Schedule on
page 11 3 for more information.
Remember, you must reset the OIL
LIFE display after each oil change.
It will not reset itself. Also, be
careful not to reset the OIL LIFE
display accidentally at any time
other than when the oil has just
been changed. It cannot be reset
accurately until the next oil change.
To reset the engine oil life system,
see Engine Oil Life System on
page 10 10.
5-37