Oil Life - Buick 2005 Terraza Owner's Manual

Average Fuel Economy
Press the information button until AVG ECONOMY
displays. This mode 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 menu item was reset. To reset AVG ECONOMY,
press and hold the set/reset button. The display
will return to zero.
Instantaneous Fuel Economy
Press the information button until INST ECONOMY
displays. This mode shows the current fuel economy
at a particular moment and will change frequently
as driving conditions change. This mode shows the
instantaneous fuel economy in miles per gallon (mpg)
or liters per 100 kilometers (L/100 km). Unlike average
fuel economy, this screen cannot be reset.
Battery
Press the information button until BATTERY displays.
This mode shows the current battery voltage.
If there is a problem with the battery charging system,
a DIC message will display. See DIC Warnings and
Messages on page 3-51 for more information.
3-48
Your vehicle's charging system regulates voltage based
on the state of the battery. The battery voltage may
fluctuate when viewing this information on the DIC.
This is normal.

Oil Life

Press the information button until OIL LIFE displays.
This mode shows an estimate of the oil's remaining
useful life. If you see OIL LIFE 99% on the display, that
means 99% of the current oil life remains. The engine
oil life system will alert you to change your oil on a
schedule consistent with your driving conditions.
When the remaining oil life is low, the LOW OIL
PRESSURE message will appear on the display.
You should change your oil as soon as possible. See
Engine Oil on page 5-13. In addition to the engine oil life
system monitoring the oil life, additional maintenance
is recommended in the Maintenance Schedule in
this manual. See Scheduled Maintenance on page 6-4
for more information.
Remember, you must reset the OIL LIFE yourself after
each oil change. It will not reset itself. Also, be
careful not to reset the OIL LIFE accidentally at any
time other than when the oil has just been changed.
It cannot be reset accurately until the next oil change.