[twr]

Hi this tells you how to reset oil message.

GM Oil Life System
Press the fuel information button until ENGINE OIL LIFE
appears in the display. The GM Oil Life System shows
an estimate of the oil?s remaining useful life. It will show
100% when the system is reset after an oil change. It
will alert you to change your oil on a schedule consistent
with your driving conditions.
Always reset the engine oil life after an oil change. To
reset the Oil Life System use the fuel button to reach the
ENGINE OIL LIFE screen and then press and hold the
select button for five seconds while ENGINE OIL LIFE is
displayed. OIL LIFE RESET will appear on the display for
10 seconds to let you know the system is reset.
The DIC does not replace the need to maintain your
vehicle as recommended in the Maintenance Schedule
in this manual. See Engine Oil on page 5-14 and
Scheduled Maintenance on page 6-4.