Pontiac Montana SV6 2007 Owner's Manual page 233

Battery
Press the information button until BATTERY
displays. This mode shows the current battery
voltage.
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.
If there is a problem with the battery charging
system, a DIC message will display. See
DIC Warnings and Messages on page 237
for more information.
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 CHANGE OIL
SOON message will appear on the display. You
should change your oil as soon as possible. See
Engine Oil on page 421. 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 520 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. To reset the engine oil life system, see
Engine Oil Life System on page 424. The display
will show 100% when the system is reset.
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