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:
Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like
this, notify General Motors.
Call 1-800-458-8006, or write:
Cadillac Customer Assistance
Center
Cadillac Motor Car Div ...
Maps
This section includes basic information that you need to know about the map database.
The maps are stored on a compact flash drive that is built into the navigation
system. ...
Services Not Included in Roadside Service
Impound towing caused by violation of any laws.
Legal fines.
Mounting, dismounting, or changing of snow tires, chains, or other traction
devices.
Towing or services for vehicles driven on ...