Maintenance Schedule - GMC Sierra 2008 Owner's Manual

Vehicle Information Menu Items
T
(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.
When the remaining oil life is low, the CHANGE
ENGINE OIL SOON message will appear on the display.
See "CHANGE ENGINE OIL SOON" under DIC
Warnings and Messages on page 3-67. You should
change the oil as soon as you can. See Engine
Oil (Gasoline Engine) on page 5-17. 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
(Gasoline Engine) on page 6-4 for more information.
Remember, you must reset the OIL LIFE display
yourself 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 5-20.
3-62
Units
Press the vehicle information button until UNITS
displays. This display allows you to select between
English or Metric units of measurement. Once in this
display, press the set/reset button to select between
ENGLISH or METRIC units. All of the vehicle information
will then be displayed in the unit of measurement
selected.
Tire Pressure
If your vehicle has the Tire Pressure Monitor
System (TPMS), the pressure for each tire can be
viewed in the DIC. The tire pressure will be shown in
either pounds per square inch (psi) or kilopascals (kPa).
Press the vehicle information button until the DIC
displays FRONT TIRES PSI (kPa) LEFT ## RIGHT ##.
Press the vehicle information button again until the
DIC displays REAR TIRES PSI (kPa) LEFT ##
RIGHT ##.
If a low or high tire pressure condition is detected by the
system while driving, a message advising you to check
the pressure in a specific tire will appear in the display.
See Inflation - Tire Pressure on page 5-76 and DIC
Warnings and Messages on page 3-67 for more
information.
If the tire pressure display shows dashes instead of a
value, there may be a problem with your vehicle. If this
consistently occurs, see your dealer/retailer for service.