GMC 2008 Savana Van Owner's Manual page 160

It cannot be reset accurately until the next oil change.
To reset the engine oil life system, see Engine Oil Life
System on page 5-18.
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.
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 5-60
and DIC Warnings and Messages on page 3-49 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.
3-46
Engine Hours
Press the vehicle information button until ENGINE
HOURS displays. This display shows the total number
of hours the engine has run.
Relearn Tire Positions
Your vehicle may have this display. To access this
display, the vehicle must be in PARK (P). If your vehicle
has the Tire Pressure Monitor System (TPMS), after
rotating the tires or after replacing a tire or sensor, the
system must re-learn the tire positions. To re-learn
the tire positions, see Tire Pressure Monitor System on
page 5-62. See Tire Inspection and Rotation on
page 5-68 and DIC Warnings and Messages on
page 3-49 for more information.
Change Compass Zone
Your vehicle may have this feature. To change the
compass zone through the DIC, see DIC Compass on
page 3-47.
Calibrate Compass
Your vehicle may have this feature. The compass can
be manually calibrated. To calibrate the compass
through the DIC, see DIC Compass on page 3-47.