OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationTire Designations
Tire Size
The following is an example of a typical passenger vehicle tire size.
(1) Passenger (P-Metric) Tire: The United States version of a metric tire sizing
system. The letter P as the first character in the tire size means a passenger vehicle
tire engineered to standards set by the U. ...
Radio(s)
/VOL: Press to turn the system on
and off. Turn to increase or decrease the volume.
RADIO/BAND: Press to select AM, FM, or band.
SEEK or SEEK
: Press to seek the previous or next station.
Buttons 1-6: Press to save and select favorite stations.
INFO: Press to view current radio ...
Passenger Compartment Air Filter
The filter reduces the dust, pollen, and other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part of routine scheduled maintenance. See Maintenance
Schedule on page 11-3. To find out what type of filter to use, see Maintenance Replacement ...