Database Coverage Explanations
Coverage area depends upon the map detail available. Some areas have greater map detail than others. The navigation system works only as well as the information provided on the stored map data. See Map Data Updates on how to obtain updated map information.
See also:
Electrical System Overload
The vehicle has fuses and circuit breakers to protect against an electrical system
overload.
When the current electrical load is too heavy, the circuit breaker opens and
closes, protecting the ci ...
Airbag Readiness Light
The system checks the airbag's electrical system for possible malfunctions. If
the light stays on it indicates there is an electrical problem. The system check
includes the airbag sensor(s), p ...
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 ...