Navigation
OnStar navigation requires the Directions and Connections service plan.
Push 
to receive directions or
have them sent to the vehicle
navigation screen. Destinations can
also be forwarded to the vehicle
from Google Maps™ or
MapQuest.com. The OnStar
mapping database is continuously
updated. Visit www.onstar.com for
coverage maps.
See also:
Bulb Replacement
For any bulb changing procedure not listed in this
section, contact your dealer. ...
Tire Terminology and Definitions
Air Pressure: The amount of air inside the
tire pressing outward on each square inch of the
tire. Air pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight ...
Remote Keyless Entry (RKE) System Operation
The transmitter functions will work up to 20m(65 ft) away from the vehicle.
Keep in mind that other conditions, such as those previously stated, can impact
the performance of the transmitter. ...