Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system migh ...
Passenger Sensing System
The vehicle has a passenger
sensing system for the front
outboard passenger position.
The passenger airbag status
indicator will be visible on the
instrument panel when the vehicle
is start ...
Inst (Instantaneous) Economy
Displays the current fuel economy
in either liters per 100 kilometers
(L/100 km) or miles per gallon
(mpg). This number changes
frequently as driving conditions
change. It cannot be reset. ...